Fan-Powered Low-Height Parallel

Fan-Powered 

Low-Height 

Parallel 

Table of 

Contents 

Model Number Description LHP 2 

Service Model Number Description LHP 3 

General Data – Valve/Controller Airflow Guidelines LHP 4 

Performance Data – Pressure Requirements LHP 5 

Performance Data – Fan Curves LHP 6 – 7 

Performance Data – Hot Water Coil LHP 8 – 9 

Performance Data – Electrical Data LHP 10 

Performance Data – Acoustics LHP 11 – 13 

Dimensional Data LHP 14 – 18 

Mechanical Specifications LHP 19 – 21 

VAV-PRC008-EN LHP 1

Low-Height Parallel Fan- 

Powered Terminal Units 

The features of the low-height parallel 

fan-powered terminal units are 

described by the product categories 

shown in bold. Within each category 

the options available are listed. 

LPCF 

LPWF 

LPEF 




MODL Unit Model 

LPCF Parallel, cooling-only 

LPWF Parallel, with hot water heat 

LPEF Parallel, with electric heat 

DSEQ Design Sequence 

* Design sequence 

INLT Primary Inlet 

06 6" inlet size 

08 8" inlet size 

14RT 18" x 14" rectangular inlet size 

FAN Fan Size 

08 700 maximum cfm 

10 1400 maximum cfm 

INSL Unit Insulation 

MT.5 ½" matte-faced 

MT1 1" matte-faced 

FF.5 ½" foil-faced 

FF1 1" foil-faced 

DW1 Double-wall w/ 1" matte-faced 

FBRF 3/8" closed-cell 

OUTL Outlet Connection 

FL Flanged connection 

SD Slip and drive connection 

MTVT Motor voltage 

115 115-volt fan motor 




CONTROLS Trane-Supplied Controls 

DD00 Shaft w/ Trane actuator 

DD01 DDC w/o remote heat 

DD02 N.C. on/off hot water valve 

control 

DD03 Proportional hot water valve 

control 

DD04 On/off electric heat control 

DD05 Pulse-width modulation control 

DD07 N.O. on/off hot water valve 

control 

EI05 Basic operation with reheat 

capability 

PN00 Pneumatic actuator only 

PN05 Pneumatic N.O. actuator w/ 

3011 PVR 

EI05 Basic operation w/ reheat 

capability 

CONN Controls & Heat Connection Side 

LEFT Left side 

HWCL Hot Water Coil 

1ROW 1-row hot water coil 

2ROW 2-row hot water coil 

FUSE Power Fuse 

WITH Power fuse 

Model 

Number 

Description 

VOLT Electric Heater voltage 

2081 208-volt, 1-phase 

2083 208-volt, 3-phase 

2401 240-volt, 1-phase 

2771 277-volt, 1-phase 

3471 347-volt, 1-phase 

4801 480-volt, 1-phase 

4803 480-volt, 3-phase 

5753 575-volt, 3-phase 

3803 380-volt, 3-phase 

STGE Electric Heater Stage 

1 1 stage of heat 

2 2 stages of heat – equal 

HTKW Electric Heater Kilowatts 

0.5 0.5 kW 

1.0 1.0 kW 

1.5 1.5 kW 

2.0 2.0 kW 

2.5 2.5 kW 

3.0 3.0 kW 

3.5 3.5 kW 

4.0 4.0 kW 

4.5 4.5 kW 

5.0 5.0 kW 

5.5 5.5 kW 

6.0 6.0 kW 

6.5 6.5 kW 

7.0 7.0 kW 

7.5 7.5 kW 

8.0 8.0 kW 

9.0 9.0 kW 

10.0 10.0 kW 

11.0 11.0 kW 

12.0 12.0 kW 

13.0 13.0 kW 

14.0 14.0 kW 

CNTR Electric Heater Control 

MAGN 24-volt magnetic contactors 

MERC 24-volt mercury contactors 

PEMA P.E. w/ magnetic contactors 

PEME P.E. w/ mercury contactors 

DISW Power Disconnect Switch 

WITH Power disconnect switch 

AFSW Electric Heater Airflow Switch 

WITH Electric heater airflow switch 

LHP 2 VAV-PRC008-EN

Digit 1, 2—Unit Type 

LP VariTrane fan-powered 

low-height parallel 

Digit 3—Reheat 

C Cooling Only 

E Electric Heat 

W Hot Water Heat 

Digit 4—Development Sequence 

F Sixth 

Digit 5, 6—Primary Air Valve 

06 6" inlet (500 maximum cfm) 

08 8" inlet (900 maximum cfm) 

RT 8" x 14" inlet 

(1800 maximum cfm) 

Digit 7, 8—Secondary Air Valve 

00 N/A 

Digit 9—Fan 

H 08 fan 750 maximum cfm 

K 10 fan 1400 maximum cfm 

Digit 10, 11—Design Sequence 

E0 Fifth (factory assigned) 

Digit 12, 13, 14, 15—Controls 

ENON No controls, field-installed 

DDC/electric 

PNON No controls, field-installed 

pneumatic 

DD00 Trane elec actuator only 

DD01 DDC – cooling only 

DD02 DDC – N.C. on/off water valve 

DD03 DDC – prop hot water valve 

DD04 DDC – on/off electric heat 

control 

DD05 DDC – pulse-width modulation 

DD07 DDC – N.O. on/off water valve 

FM00 FM customer actuator & 

control 

FM01 FM Trane actuator w/ customer 

actuator & control 

VMA2 FM Johnson Controls 

VMA-1420 

PWR1 FM Seimens 540-100 w/ 

GDE131.1P actuator 


Trane actuator 


GDE131.1U actuator 

AT01 FM Automated Logic U341V+ 

AT02 FM Automated Logic U141V+ 

EI05 Analog – fan-powered 

parallel on/off reheat 

PN00 PN – N.O. Trane pneumatic 

actuator, R.A. stat 

PN05 PN – N.O. PVR, R.A. stat 




Notes: 

N.C. = Normally-closed 

N.O. = Normally-opened 

DA Stat = Direct-acting pneumatic t-stat 

(by others) 

RA Stat = Reverse-acting pneumatic 

t-stat (by others) 

PN = Pneumatic 

FM = Factory installation of customersupplied 

controller 

Digit 16—Insulation 

A 1/2" Matte-faced 

B 1" Matte-faced 

C 1/2" Foil-faced 

D 1" Foil-faced 

F 1" Double-wall 

G 3/8" Closed-cell 

Digit 17—Motor Type 

D PSC Motor 

Digit 18—Motor Voltage 

1 115/60/1 

2 277/60/1 

3 347/60/1 

5 230/50/1 

Digit 19—Outlet Connection 

1 Flanged 

2 Slip & Drive 

Digit 20—Not Used 

0 N/A 

Digit 21—Water Coil 

0 None 

1 1-Row 

2 2-Row 

Digit 22—Electrical Connections 

L Left (airflow hitting you in 

the face) 

Digit 23—Transformer 

0 N/A (provided as standard) 

Digit 24—Power Disconnect 

0 None 

W With 

Digit 25—Power Fuse 

0 None 

W With 

Digit 26—Electric Heat Voltage 

0 None 

A 208/60/1 

B 208/60/3 

C 240/60/1 

D 277/60/1 

E 480/60/1 

F 480/60/3 

G 347/60/1 

H 575/60/3 

J 380/50/3 

Service 

Model Number 

Description 

Digit 27, 28, 29—Electric Heat Voltage 

000 None 

005 0.5 kW 

010 1.0 kW 

015 1.5 kW 

020 2.0 kW 

025 2.5 kW 

030 3.0 kW 

035 3.5 kW 

040 4.0 kW 

045 4.5 kW 

050 5.0 kW 

055 5.5 kW 

060 6.0 kW 

065 6.5 kW 

070 7.0 kW 

075 7.5 kW 

080 8.0 kW 

090 9.0 kW 

100 10.0 kW 

110 11.0 kW 

120 12.0 kW 

130 13.0 kW 

140 14.0 kW 

Digit 30—Electric Heat Stages 

0 None 

1 1 Stage 

2 2 Stages Equal 

Digit 31—Contactors 

0 None 

1 24-volt magnetic 

2 24-volt mercury 

3 PE with magnetic 

4 PE with mercury 

Digit 32—Airflow Switch 

0 None 

W With 

VAV-PRC008-EN LHP 3




General Data— 

Valve/Controller 

Airflow Guidelines 

Primary Airflow Control Factory Settings – I-P 

Control Air Valve Maximum Valve Maximum Controller Minimum Controller Constant Volume 

Type Size (in.) Cfm Cfm Cfm Cfm 

Direct Digital Control/ 6 500 60–500 0,60–500 60–500 

UCM 8 900 105–900 0,105–900 105–900 

8x14 2200 200–2200 0,220–2200 220–2200 

Pneumatic with 6 500 73–500 0,73–500 73–500 

Volume Regulator 8 900 134–900 0,134–900 134–900 

8x14 2100 297–2100 0,297–2100 297–2100 

6 500 120–500 0,120–500 120–500 

Analog Electronic 8 900 210–900 0,210–900 210–900 

8x14 2200 440–2200 0,440–2200 440–2200 

Primary Airflow Control Factory Settings – SI 

Control Air Valve Maximum Valve Maximum Controller Minimum Controller Constant Volume 

Type Size (in.) L/s L/s L/s L/s 

Direct Digital Control/ 6 236 28–236 0,28–236 28–236 

UCM 8 425 50–425 0,50–425 50–425 

8x14 1038 104–1038 0,104–1038 104–1038 

Pneumatic with 6 236 35–236 0,35–236 35–236 

Volume Regulator 8 425 63–425 0,63–425 63–425 

8x14 991 140–991 0,140–991 140–991 

6 236 57–236 0,57–236 57–236 

Analog Electronic 8 425 100–425 0,100–425 100–425 

8x14 1038 208–1038 0,208–1038 208–1038 

Note: Maximum airflow must be greater than or equal to minimum airflow. 

LHP 4 VAV-PRC008-EN




Air Pressure Drop – in. wg (I-P) 

Size Airflow Cooling Only Unit 

Inlet-Fan Cfm (in. wg) 

06–08 425 0.22 

450 0.25 

475 0.28 

500 0.32 

08–08 425 0.04 

550 0.07 

675 0.12 

850 0.20 

08–10 725 0.14 

775 0.16 

850 0.20 

900 0.22 

8x14–10 725 0.18 

1000 0.36 

1200 0.53 

1450 0.78 

Fan Airflow 1-Row HW Coil Only 

Size Cfm (in. wg) 

08 425 0.04 

500 0.05 

575 0.06 

650 0.07 

725 0.09 

10 725 0.09 

800 0.11 

900 0.13 

1000 0.16 

1100 0.19 

1225 0.22 


Size Cfm (in. wg) 

08 425 0.07 

475 0.08 

550 0.11 

625 0.13 

700 0.16 

10 725 0.17 

800 0.20 

900 0.24 

1000 0.29 

1100 0.33 

Notes: 

1150 0.35 

1. Units with Electric Coils per fan size add 0.01" (3 Pa) to cooling only value 

2. HW Coil only pressure drops are just for the heating coil. 

Performance 

Data—Pressure 

Requirements 

Air Pressure Drop – Pa (SI) 

Size Airflow Cooling Only Unit 

Inlet-Fan L/s (Pa) 

06–08 200 55 

215 65 

225 71 

235 78 

08–08 200 10 

260 18 

320 29 

400 48 

08–10 345 35 

365 39 

400 48 

425 56 

8x14–10 345 47 

475 91 

565 131 

685 195 


Size L/s (Pa) 

08 200 9 

235 11 

275 15 

310 19 

340 22 

10 340 22 

375 26 

425 33 

475 40 

520 46 

575 54 


Size L/s (Pa) 

08 200 17 

225 21 

260 27 

295 33 

330 40 

10 345 43 

375 49 

425 60 

475 72 

520 82 

540 86 

VAV-PRC008-EN LHP 5

Discharge Static Pressure 


Pa In. wg 

199.3 

174.4 

149.5 

124.6 

99.7 

74.7 

49.8 

24.9 

0.80 

0.70 

0.60 

0.50 

0.40 

0.30 

0.20 

0.10 

Low-Height Parallel Fan Size 08 

0.0 0.00 

200 300 400 500 600 

Pa In. wg 

199.3 0.80 

174.4 0.70 

149.5 0.60 

124.6 0.50 

99.7 0.40 

74.7 0.30 

49.8 0.20 

24.9 0.10 

94.4 141.6 188.8 236.0 283.2 

Airflow 




700 

330.4 

Low-Height Parallel Fan Size 10 

0.0 0.00 

300 500 700 900 1100 

141.6 236.0 330.4 424.8 519.1 

Airflow 

1300 

613.5 

Performance 

Data— 

Fan Curves (60 Hz) 

LPCF and LPEF maximum 

Minimum 

1 row coil maximum 


LHP 6 VAV-PRC008-EN 

800 

377.6 

1500 

707.9 

900 Cfm 

424.8 L/s 

Cfm 

L/s

LPCF and LPEF maximum 

Minimum 








Pa In. wg 

99.7 

74.7 

49.8 

24.9 

0.0 

0.40 

0.30 

0.20 

0.10 

0.00 

Pa In. wg 

124.6 

99.7 

74.7 

49.8 

24.9 

0.50 

0.40 

0.30 

0.20 

0.10 

Performance 

Data— 

Fan Curves (50 Hz) 

Low-Height Parallel Fan Size 08—230/50 

400 500 600 

188.8 236.0 283.2 

0.0 0.00 

500 600 

236.0 283.2 

VAV-PRC008-EN LHP 7 

Airflow 

Low-Height Parallel Fan Size 10—230/50 

700 

330.4 

800 

377.6 

Airflow 

900 

424.8 

1000 

472.0 

1100 

519.1 

700 Cfm 

330.4 L/s 

1200 Cfm 

566.3 

L/s 

50 hz




Fan Size 08 (I-P) 

Water 

Pressure Airflow (Cfm) 

Rows Gpm Drop (ft) 450 500 550 600 650 700 725 

1-Row 0.5 0.82 13.54 14.00 14.42 14.80 — — — 

Capacity 1.0 2.71 16.51 17.26 17.97 18.64 19.26 19.85 20.13 

MBH 1.5 5.50 17.88 18.74 19.55 20.32 21.05 21.75 22.10 

2.0 9.12 18.65 19.59 20.48 21.33 22.14 22.92 23.30 

2.5 13.52 19.14 20.14 21.08 21.98 22.85 23.68 24.08 

2-Row 1.0 0.91 24.68 25.78 26.76 27.63 28.41 29.11 — 

Capacity 2.0 3.07 29.14 30.83 32.37 33.77 35.06 36.26 — 

MBH 3.0 6.32 30.85 32.80 34.59 36.25 37.79 39.22 — 

4.0 10.57 31.75 33.85 35.78 37.59 39.26 40.83 — 

5.0 15.79 32.31 34.50 36.53 38.42 40.19 41.85 — 

Fan Size 10 (I-P) Water 

Pressure Airflow (Cfm) 

Rows Gpm Drop (ft) 700 800 900 1000 1100 1200 1240 

1-Row 0.7 1.52 17.64 18.47 19.20 19.86 20.46 — — 

Capacity 1.0 2.82 19.71 20.79 21.77 22.66 23.49 24.25 24.53 

MBH 1.5 5.72 21.59 22.94 24.17 25.32 26.39 27.39 27.77 

2.0 9.48 22.74 24.20 25.55 26.85 28.07 29.22 29.67 

2.5 14.08 23.49 25.05 26.51 27.89 29.18 30.43 30.91 

2-Row 1.5 1.06 33.60 35.36 36.86 38.16 39.30 — — 

Capacity 2.0 3.09 36.26 38.38 40.22 41.84 43.27 — — 

MBH 3.0 6.34 39.22 41.80 44.08 46.10 47.91 — — 

4.0 10.60 40.83 43.69 46.22 48.49 50.54 — — 

5.0 15.84 41.85 44.88 47.59 50.02 52.22 — — 

Notes: 

1. Fouling Factor = 0.00025 

2. The following equations may be used in calculating Leaving Air Temperature (LAT) and Water Temperature 

Difference (WTD). 

3. Capacity based on 70°F entering air temperature and 180°F entering water temperature. Refer to correction 

factors for different entering conditions. 

LAT = EAT + 

MBH x 921.7 ( Cfm ) WTD = EWT - LWT = 

Temperature Correction Factors for Water Pressure Drop (WPD) 

Average Water Temperature 200 190 180 170 160 150 140 130 120 110 

Correction Factor 0.970 0.985 1.000 1.020 1.030 1.050 1.080 1.100 1.130 1.150 

Temperature Correction Factors for Coil Capacity (MBH) 

( ) 

2 x MBH 

Gpm 

Entering Water Minus Entering Air 40 50 60 70 80 90 100 110 120 130 


Coils–Water Weights 

Internal Internal Operating 

Unit Fan Coil Volume Volume Weight 

Type Size Type (in. 3 ) (gal.) (lbs) 

LPWF 08 1-Row 16.78 0.073 9.7 

LPWF 08 2-Row 39.05 0.169 13.7 

LPWF 10 1-Row 16.78 0.073 9.7 

LPWF 10 2-Row 39.05 0.169 13.7 

Performance 

Data—Hot Water 

Coil (I-P) 

LHP 8 VAV-PRC008-EN




Performance 

Data—Hot Water 

Coil (SI) 

Fan Size 08 (SI) Water 

Pressure Airflow (L/s) 

Rows L/s Drop (kPa) 212 236 260 283 307 330 342 

1-Row 0.04 3.70 3.97 4.10 4.23 4.34 — — — 

Capacity 0.07 9.72 4.84 5.06 5.27 5.46 5.65 5.82 5.90 

kW 0.09 16.45 5.24 5.49 5.73 5.96 6.17 6.37 6.48 

0.13 27.28 5.47 5.74 6.00 6.25 6.49 6.72 6.83 

0.16 40.43 5.61 5.90 6.18 6.44 6.70 6.94 7.06 

2-Row 0.06 2.72 7.23 7.56 7.84 8.10 8.33 8.53 — 

Capacity 0.13 9.17 8.54 9.04 9.49 9.90 10.28 10.63 — 

kW 0.19 18.86 9.04 9.61 10.14 10.62 11.08 11.50 — 

0.25 31.56 9.31 9.92 10.49 11.02 11.51 11.97 — 

0.32 47.19 9.47 10.11 10.71 11.26 11.78 12.27 — 

Fan Size 10 (SI) Water 

Pressure Airflow (L/s) 

Rows L/s Drop (kPa) 330 378 425 472 519 566 585 

1-Row 0.04 4.53 5.17 5.41 5.63 5.82 6.00 — — 

Capacity 0.07 10.07 5.78 6.09 6.38 6.64 6.88 7.11 7.19 

kW 0.09 17.06 6.33 6.72 7.08 7.42 7.73 8.03 8.14 

0.13 28.36 6.67 7.09 7.49 7.87 8.23 8.56 8.70 

0.16 42.05 6.88 7.34 7.77 8.17 8.55 8.92 9.06 

2-Row 0.09 7.35 9.85 10.36 10.80 11.18 11.52 — — 

Capacity 0.13 9.23 10.63 11.25 11.79 12.26 12.68 — — 

kW 0.19 18.95 11.50 12.25 12.92 13.51 14.04 — — 

0.22 31.70 11.97 12.81 13.55 14.21 14.81 — — 

0.32 47.32 12.27 13.15 13.95 14.66 15.31 — — 

Notes: 

1. Fouling Factor = 0.00025 

2. The off-coil temperature of the hot water coil on parallel fan-powered units must not exceed 60°C. 

3. The following equations may be used in calculating Leaving Air Temperature (LAT) and Water 

Temperature Difference (WTD). 

4. Capacity based on 21°C entering air temperature and 82°C entering water temperature. Refer to 

correction factors for different entering conditions. 

kW x 0.83 

LAT = EAT + ( L/s ) 

kW 

WTD = EWT - LWT = ( (4.19)L/s) 

Temperature Correction Factors for Water Pressure Drop (WPD) 

Average Water Temperature 93 88 82 77 71 66 60 54 49 43 


Temperature Correction Factors for Coil Capacity (MBH) 

Entering Water Minus Entering Air 22 27 33 38 44 50 55 61 67 72 


Coils - Water Weights 

Internal Internal Operating 

Unit Fan Coil Volume Volume Weight 

Type Size Type (m3 ) (L) (kg) 

LPWF 08 1-Row 0.000275 0.275 4.4 

LPWF 08 2-Row 0.000640 0.640 6.2 

LPWF 10 1-Row 0.000275 0.275 4.4 

LPWF 10 2-Row 0.000640 0.640 6.2 

VAV-PRC008-EN LHP 9




Performance 

Data— 

Electrical Data 

LPEF Electric Coil kW Guidelines – Minimum to Maximum (PSC Motor Units) 

Fan Single-Phase Voltage Three-Phase Voltage 

Size Stages 208 V 240 V 277 V 347 V 480 V 208 V 480 V 575 V 

8 1 0.5–7.0 0.5–7.0 0.5–7.0 0.5–7.0 0.5–7.0 1.0–7.0 1.0–7.0 1.5–7.0 

2 0.5–7.0 0.5–7.0 1.0–7.0 1.0–7.0 1.0–7.0 1.0–7.0 2.0–7.0 3.0–7.0 

10 1 0.5–8.0 0.5–9.0 0.5–12.0 0.5–14.0 0.5–14.0 1.0–14.0 1.0–14.0 1.5–14.0 

Notes: 

2 0.5–8.0 0.5–9.0 1.0–12.0 1.0–14.0 1.0–14.0 1.0–14.0 2.0–14.0 3.0–14.0 

1. Coils available with 24 VAC magnetic or mercury contactors, load carrying P.E. switches, and P.E. switch with magnetic or mercury contractors. 

2. Available kW increments are by 0.5 from 0.5 kW to 8.0 kW and by 1.0 kW from 9.0 to 14.0 kW. 

3. Each stage will be equal in kW output. 

4. All heaters contain an auto thermal cutout and a manual reset cutout. 

5. The current amp draw for the heater elements is calculated by the formula below. 

6. Only two stages of electric reheat available with Trane controls. 

Minimum Unit Electric Heat 

Cfm Guidelines 

Fan Minimum Unit 

Size Heating Cfm* 

08 320 

10 720 

*Note: (fan cfm) + (minimum primary air) = 

minimum unit electric heat cfm 

Fan Electrical Performance (PSC Motor) 

Maximum Fan Motor Amperage (FLA) 

Fan Size HP 115 VAC 277 VAC 347 VAC 250/50 Hz 

08 1/8 4.7 1.76 1.52 1.04 

10 

Notes: 

2 x 1/8 4.7 ea. 1.76 ea. 1.52 ea. 1.04 ea. 

1. Electric Heat Units - Units with Primary Voltage of 208/60/1, 208/ 

60/3 or 240/60/1 use 115 VAC fan motors. 

2. Electric Heat Units - Units with Primary Voltage of 277/60/1, 

480/60/1 or 480/60/3 use 277 VAC fan motors. 

3. Electric Heat Units - Units with Primary Voltage of 347/60/1 or 

575/60/3 use 347 VAC fan motors. 

4. Values are for standard, single-speed, permanent split capacitor 

type motors. Consult factory for non-standard motor 

performance. 

Minimum Circuit Ampacity (MCA) Equation 

— MCA = (motor amps + heater amps) x 1.25 

Maximum Overcurrent Protection (MOP) Equation 

— MOP = (2.25 x motor amps) + heater amps 

General Sizing Rules: 

— If MOP = 15, then fuse size = 15 

— If MOP = 19, then fuse size = 15 with one exception. If heater 

amps x 1.25 > 15, then fuse size = 20. 

— If MOP � MCA, then choose next fuse size greater than MCA. 

— Control fusing not applicable. 

— Standard Fuse Sizes: 15, 20, 25, 30, 35, 40, 45, 50, and 60. 

Useful formulas: 

Cfm x ATD 

kW = 

3145 

kW x 1000 

3�amps = 

Primary Voltage x � � 

kW x 3145 

ATD = 

Cfm 

kW = 1214 x L/s x ATD 

1�amps = 

ATD = 

kW 

1214 x L/s 

kW x 1000 

Primary Voltage 

LHP 10 VAV-PRC008-EN

Discharge Sound Power (dB) 




Performance 

Data— 

Acoustics 


0.5" Inlet 1.0" Inlet 2.0" Inlet 3.0" Inlet 

Fan Inlet Pressure (127 Pa) Pressure (254 Pa) Pressure (508 Pa) Pressure (762 Pa) 

Size Size Cfm L/s 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 

08 6 200 94 49 48 44 43 39 31 53 52 48 48 44 39 56 55 53 53 49 48 57 57 56 56 54 53 

300 142 55 52 49 50 47 38 58 56 52 53 50 43 60 60 58 57 55 50 62 61 60 60 57 55 

400 189 58 57 54 55 53 44 61 60 56 57 56 48 65 63 61 61 59 53 66 66 64 64 61 56 

500 236 61 59 55 56 54 45 64 64 60 62 60 52 68 67 64 65 63 56 69 68 66 67 64 58 

08 8 350 165 55 51 46 46 43 34 58 55 50 50 47 41 61 60 56 54 52 48 62 62 60 57 54 53 

520 245 60 56 51 52 50 40 63 60 56 56 54 47 66 64 60 60 58 52 68 66 63 62 60 56 

700 330 64 60 56 57 55 46 67 64 60 60 59 51 70 68 64 65 62 55 71 70 67 67 65 58 

900 425 66 65 61 62 60 52 70 68 64 65 63 55 74 72 68 69 67 60 75 74 71 71 69 62 

10 8 350 165 50 47 43 41 33 27 53 52 46 44 38 39 56 55 52 48 43 45 56 57 57 52 47 50 

520 245 54 51 45 45 38 28 57 55 49 47 40 39 60 60 55 52 45 46 61 61 59 54 49 51 

700 330 57 54 48 49 41 33 60 59 54 51 44 41 64 63 59 55 48 47 66 65 62 58 51 51 

900 425 61 58 53 54 50 41 64 62 57 55 50 44 68 66 63 59 53 48 70 67 65 61 55 52 

10 8x14 780 368 60 58 51 48 41 34 63 64 59 57 45 42 65 66 65 65 51 50 67 67 68 69 56 54 

1170 552 — — — — — — 67 67 61 58 51 46 70 72 69 68 56 52 71 74 74 73 59 56 

1560 736 — — — — — — — — — — — — 73 74 71 68 60 55 74 77 75 74 63 59 

2000 944 — — — — — — — — — — — — 75 76 77 71 65 59 77 78 77 74 67 61 

Notes: 

1. All data are measured in accordance with current Industry Standard ARI 880, version 1998. 

2. All sound power levels, dB re: 10-12 Watts. 

Radiated Sound Power (dB) 


0.5" Inlet 1.0" Inlet 2.0" Inlet 3.0" Inlet 

Fan Inlet Pressure (127 Pa) Pressure (254 Pa) Pressure (508 Pa) Pressure (762 Pa) 

Size Size Cfm L/s 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 2 3 4 5 6 7 

08 6 200 94 49 44 37 32 29 22 53 47 41 35 31 25 55 48 46 39 36 31 57 50 48 43 41 37 

300 142 54 46 41 35 30 23 55 50 45 38 33 26 60 54 49 42 38 32 61 56 54 46 43 38 

400 189 56 50 45 39 33 25 59 54 48 41 35 28 63 57 53 45 39 34 65 59 56 48 43 38 

500 236 58 54 48 42 35 28 62 57 51 45 39 31 66 60 56 48 42 36 69 62 59 51 45 39 

08 8 350 165 57 48 41 35 30 25 60 51 43 37 32 27 63 55 48 42 38 34 64 57 52 45 42 38 

520 245 64 54 45 37 31 25 66 57 48 40 34 28 68 60 52 45 39 35 69 62 56 48 43 39 

700 330 66 57 49 41 36 28 70 61 53 45 38 31 73 65 57 49 42 37 74 66 59 51 45 40 

900 425 67 60 52 45 39 31 71 63 55 48 41 34 75 67 59 52 45 38 77 69 62 55 48 41 

10 8 350 165 52 47 39 35 29 24 55 49 41 36 33 28 58 52 47 41 38 34 60 56 50 44 42 39 

520 245 56 50 41 39 33 24 58 53 45 39 34 29 63 56 49 43 40 35 64 59 53 47 44 40 

700 330 59 54 44 42 34 27 61 57 48 42 36 30 67 60 53 46 41 35 69 63 56 49 45 40 

900 425 61 57 48 45 39 33 65 61 52 47 40 34 70 63 56 50 43 37 73 65 58 52 45 41 

10 8x14 780 368 60 55 47 41 32 28 63 61 55 48 38 34 66 63 60 55 45 41 69 66 64 59 50 45 

1170 552 — — — — — — 68 65 57 50 41 39 71 69 66 59 48 45 74 74 69 64 53 48 

1560 736 — — — — — — — — — — — — 73 71 64 56 47 46 74 72 66 59 49 47 

2000 944 — — — — — — — — — — — — 76 75 70 62 52 50 78 77 72 65 55 52 

Notes: 



Fan Only Sound Power Discharge Sound Power (dB) Radiated Sound Power (dB) 

Fan Outlet Fan Octave Bands Octave Bands 

Size Static Cfm L/s 2 3 4 5 6 7 2 3 4 5 6 7 

08 450 212 61 54 54 52 45 41 65 57 57 53 49 45 

0.25 525 248 63 56 56 54 48 44 66 59 59 55 51 48 

(63 Pa) 600 283 65 59 59 57 51 48 68 61 61 57 54 51 

675 319 67 61 61 60 54 50 70 63 63 60 56 54 

750 354 69 63 63 62 57 54 73 66 65 62 58 57 

10 700 330 67 61 57 54 49 44 62 57 55 51 45 40 

0.25 840 396 68 63 58 55 50 46 64 58 57 53 48 43 

(63 Pa) 980 463 70 65 60 57 53 50 65 61 58 56 51 47 

1200 566 73 69 64 61 57 55 69 65 63 61 56 54 

1400 661 76 72 67 64 60 58 72 69 66 65 60 57 

Notes: 


2. All sound power levels, dB re: 10 -12 Watts. 

VAV-PRC008-EN LHP 11




Sound Noise Criteria (NC) 

Valve Only 

Discharge Radiated 

NC Level NC Level 

Fan Inlet 0.5" 1.0" 2.0" 3.0" 0.5" 1.0" 2.0" 3.0" 

Size Size Cfm L/s (127 Pa) (254 Pa) (508 Pa) (763 Pa) (127 Pa) (254 Pa) (508 Pa) (763 Pa) 

08 6" 200 94 — — — 16 — — 20 22 

300 142 — — 19 20 15 19 23 29 

400 189 15 19 22 26 19 22 27 31 

500 236 17 24 27 29 22 26 31 34 

08 8" 350 165 — — 17 20 19 22 26 27 

520 245 — 17 22 25 27 30 32 34 

700 330 17 22 27 30 30 35 39 40 

900 425 24 27 32 35 31 36 41 44 

10 8" 350 165 — — — — — 16 21 25 

520 245 — — 17 19 17 21 26 29 

700 330 — 16 21 24 22 26 31 34 

900 425 15 20 25 26 26 31 35 39 

10 8"x14" 780 368 — 21 24 25 24 31 35 39 

1170 552 25 31 34 36 41 46 

1560 736 34 37 42 44 

2000 944 36 38 47 50 

Sound Noise Criteria (NC) 

Fan Only 

Fan Fan Outlet Discharge Radiated 

Size Cfm L/s Static NC Level NC Level 

08 450 212 — 32 

525 248 0.25 — 34 

600 283 (63 Pa) 15 36 

675 319 17 38 

750 354 20 40 

10 700 330 17 30 

840 396 0.25 20 32 

980 463 (63 Pa) 22 33 

1200 566 27 38 

1400 661 31 41 

Notes: 

1. “–“ represents NC levels below NC 15. 

2. NC Values are calculated using current Industry Standard ARI 

885, 2002 addendum to revision 1998. Radiated Transfer Function 

obtained from Appendix E, Type 2Mineral Fiber Insulation. 

ARI 885-98 DISCHARGE TRANSFER FUNCTION ASSUMPTIONS: 

Octave Band 

2 3 4 5 6 7 

Small Box (< 300 cfm) -24 -28 -39 -53 -59 -40 

Medium Box (300-700 cfm) -27 -29 -40 -51 -53 -39 

Large Box (> 700 cfm) -29 -30 -41 -51 -52 -39 

Note: Add to terminal unit sound power to determine discharge sound 

pressure in the space. 

ARI 885-98 RADIATED TRANSFER FUNCTION ASSUMPTIONS: 

Octave Band 

2 3 4 5 6 7 

Type 1 – Glass Fiber -19 -19 -21 -25 -29 -35 

Type 2 – Mineral Fiber Insulation -18 -19 -20 -26 -31 -36 

Type 3 – Solid Gypsum Board -23 -26 -25 -27 -27 -28 

Note: Select the ceiling type which most closely represents the 

application. Next, add to terminal unit sound power to determine radiated 

sound pressure in the space. 

Performance 

Data— 

Acoustics 






Valve Only 

ARI Conditions 

Fan Inlet 1.5" Inlet Pressure (381 Pa) 

Size Size Cfm L/s 2 3 4 5 6 7 

08 6 400 189 63 62 59 59 57 50 

8 700 330 69 66 62 63 61 54 

10 8 700 330 62 62 57 53 46 44 

8x14 1560 736 71 72 69 65 59 53 

Performance 

Data— 

Acoustics 


Valve Only 


Fan Inlet 1.5" Inlet Pressure (381 Pa) 


08 6 400 189 61 56 50 43 37 31 

8 700 330 71 62 55 46 40 33 

10 8 700 330 64 59 51 44 38 33 

8x14 1560 736 73 71 64 56 47 46 







Fan Inlet 

Fan Inlet 



08 6,8 750 354 69 63 63 62 57 54 

08 6,8 750 354 73 66 65 62 58 57 

10 8, 8x14 1400 661 72 69 66 65 60 57 

10 8, 8x14 1400 661 76 72 67 64 60 58 

Notes: 

1. All data are measured in accordance with currrent Industry Standard ARI 

880, version 1998. 



TOP VIEW 

BACK VIEW 

AIRFLOW 

AIR 

VALVE 

AIRFLOW 

DISCHARGE OUTLET 




PARALLEL LOW-HEIGHT COOLING (LPCF) 

SIZE 

INLET/FAN 

0608 

0808 

0810 

14RT10 

B 

INLET SIZE 

(NOMINAL Ø) 

6" (152 mm) 

8" (203 mm) 

8" (203 mm) 

CFM (L/s) 

FAN INLET 

800 (378) 

800 (378) 

1800 (850) 

A 

500 (236) 

900 (425) 

900 (425) 

8" x 14" 1800 (850) 

(203 mm X 356 mm) 

2000 (944) 

FLOW RING 

TUBING 

6.50" 

(165 mm) 

ACTUATOR 

6.50" 

(165 mm) 

5.50" 

(140 mm) 

4.00" 

(102 mm) 

8.25" 

(210 mm) 

20.00" 

(508 mm) 

4.00" 

(102 mm) 

W 

H 

11.50" (292 mm) 

W L 

40.00" (1016 mm) 

Dimensional 

Data 

CUSTOMER NOTES: 

1. Allow 6" (152 mm) clearance for plenum inlet. 

2. Flanged discharge outlet accepts up to a 1" 

(25 mm) duct flange. 


L 

H 

30.00" (762 mm) 

30.00" (762 mm) 

48.00" (1219 mm) 

48.00" (1219 mm) 

DISCHARGE DIMENSIONS 

A 

19.25" (489 mm) 

FILTER SIZE 

10" x 20" x 1" 

(254 mm x 508 mm x 25 mm) 

CONTROL BOX 

ELECTRIC OR DDC/UCM 

FAN CONTROL BOX 

B 

10.00" (254 mm) 

3. Fan and motor access is through plenum inlet. 

Wt 

LBS 

(KGS) 

63 (29) 

65 (29) 

90 (41) 

92 (42)

TOP VIEW 

BACK VIEW 

AIRFLOW 

AIR 

VALVE 

AIRFLOW 





PARALLEL LOW-HEIGHT HOT WATER (LPWF) 

SIZE 

INLET/FAN 

0608 

0808 

0810 

14RT10 

6.50" 

(165 mm) 

ACTUATOR 

6.50" 

(165 mm) 

5.50" 

(140 mm) 

INLET SIZE 

(NOMINAL Ø) 

6" (152 mm) 

8" (203 mm) 

8" (203 mm) 

8" x 14" 

(203 mmX356 mm) 

4.00" 

(102 mm) 

FLOW RING 

TUBING 

8.25" 

(210 mm) 

FAN 

CFM/LPS 

INLET 

800 (378) 500 (236) 

800 (378) 900 (425) 

1800 (850) 900 (425) 

1800 (850) 2000 (944) 

20.00" 

(508 mm) 

A 

4.00" 

(102 mm) 

W 

H 

11.50" (292 mm) 

20.00" 

(508 mm) 

WATER 

COIL 

40.00" (1016 mm) 

FAN ACCESS 

THROUGH PLENUM 

6.30" 

(160 mm) 

Dimensional 

Data 


2. Allow 6" (152 mm) clearance for inlet. 

3. Filter mounts in water coil with filter clips. 


L 

W L 

B 

H 

30.00" (762 mm) 

30.00" (762 mm) 

40.00" (1016 mm) 

40.00" (1016 mm) 


A 

19.25" (489 mm) 

FILTER SIZE 

10" x 20" x 1" 

(254 mm x 508 mm x 25 mm) 

CONTROL BOX 

ANALOG OR DDC/UCM 

B 

10.25" (260 mm) 


1. Coil furnished with female sweat connections. 




WT 

LBS 

(KGS) 

72 (33) 

74 (34) 

99 (45) 

101 (46)

INLET/FAN 

0608 

0808 

0810 

14RT10 




AIRFLOW 

Dimensional 

Data 

COIL INFORMATION FOR LOW-HEIGHT PARALLEL 1-ROW COIL 

SIZE 

OUTLET 

INLET 

.375" 

COIL 

CONNECTION 

A 

B L 

H 

(10 mm) O.D. 9.00" (229 mm) 

1.75" (44 mm) 

20.00" (508 mm) 10.00" (254 mm) 

B 

A 

.875" 

(22 mm) 

H 


1. Location of coil connections is determined by facing air 

stream. R.H. Coil connections shown, L.H. not available. 

2. Coil furnished with stub sweat connections. 

Coil height and width is dependent upon unit height and width. 


3. 

L

.85" 

(22 mm) 

INLET/FAN 

0608 

0808 

0810 

14RT10 




AIRFLOW 

Dimensional 

Data 

COIL INFORMATION FOR LOW-HEIGHT PARALLEL 2-ROW COIL 

SIZE 

INLET 

OUTLET 

.875" 

7.40" 

(188 mm) 

COIL 

CONNECTION 

A 

B L 

H 

(22 mm) O.D. 6.20" (157 mm) 

2.18" (55 mm) 

20.00" (508 mm) 10.00" (254 mm) 

B 

A 

2.00" 

(51 mm) 

H 


1. Location of coil connections is determined by facing air 

stream. R.H. Coil connections shown, L.H. not available. 

2. Coil furnished with stub sweat connections. 

Coil height and width is dependent upon unit height and width. 


3.

ACTUATOR 

TOP VIEW 

BACK VIEW 




PARALLEL LOW-HEIGHT ELECTRIC (LPEF) 

SIZE INLET SIZE 

CFM/LPS 

INLET/FAN (NOMINAL Ø) 

FAN INLET 

H 

0608 6" (152 mm) 800 (378) 500 (236) 11.50" (292 mm) 

0808 8" (203 mm) 800 (378) 900 (425) 

0810 8" (203 mm) 1800 (850) 900 (425) 

14RT10 

8" x 14" 

1800 (850) 

(203 mm X 356 mm) 

2000 (944) 

6.50" 

(165 mm) 

6.50" 

(165 mm) 

5.50" 

(140 mm) 

4.00" 

(102 mm) 

FLOW RING 

TUBING 

8.25" 

B 

(210 mm) 

20.00" 

(508 mm) 

AIRFLOW 

AIR 

VALVE 

HEATER 

A 

4.00" 

(102 mm) 

AIRFLOW 


W 

TERMINAL BOX 

W L 

40.00" (1016 mm) 

30.00" (762 mm) 

30.00" (762 mm) 

48.00" (1219 mm) 

48.00" (1219 mm) 

Dimensional 

Data 



A 

20.00" (508 mm) 

1. Allow 6" (152 mm) clearance for inlet. 

2. Inside duct dimensions equal outlet size (A x B). 

Allow 48" (1219 mm) of straight duct downstream 

of unit before first runout. 

3. Terminal box access door is side hinged. Allow 

for clearance. (22" (559 mm) long x 11.50" 

(292 mm) high). 

4. Filter mounts in filter frame. 

B 

10.00" (254 mm) 

5. Knockouts for power supply provided in top and 

bottom of terminal box. 




L 

6.00" 

(152 mm) 

H 

FILTER SIZE 

10" x 20" x 1" 

(254 mm x 508 mm x 25 mm) 

CONTROL BOX 

ANALOG OR DDC/UCM 



8. Coils are provided without internal insulation. 

If the unit is to be installed in a location with 

high humidity, external insulation around the 

heating coil should be installed as required. 

WT 

LBS 

(KGS) 

78 (35) 

80 (36) 

105 (48) 

107 (49)

MODELS LPCF, LPWF, 

and LPEF 

Low-height parallel fan-powered 

terminal units. 

LPCF – Cooling Only 

LPWF – With Hot Water Coil 

LPEF – With Electric Coil 

CASING 

22-gage galvanized steel. Hanger 

brackets, plenum access, and filter 

which is on the plenum inlet are 

provided as standard. 

AGENCY LISTING 

The unit is UL and Canadian UL 

Listed as a room air terminal unit. 

Control # 9N65. 

ARI 880 Certified. 

INSULATION 

1/2" (12.7 mm) Ma te-faced 

Insulation—The interior surface of 

the unit casing is acoustically and 

thermally lined with ½-inch, 1.75 lb/ft 3 

(12.7 mm, 28.03 kg/m3 ) composite 

density glass fiber with a high-density 

facing of 4.0 lb/ft3 (64 kg/m3 ). The 

insulation R-Value is 1.9. The insulation 

is UL listed and meets NFPA-90A and 

UL 181 standards. There are no 

exposed edges of insulation (complete 

metal encapsulation). 

1" (25.4 mm) Ma te-faced 



thermally lined with 1-inch, 1.55 lb/ft 3 

(25.4 mm, 24.8 kg/m3 ) composite 

density glass fiber with a high-density 

facing of 4.0 lb/ft3 (64 kg/m3 ). The 

insulation R-Value is 3.85. The 

insulation is UL listed and meets 

NFPA-90A and UL 181 standards. There 

are no exposed edges of insulation 

(complete metal encapsulation). 

1/2" (12.7 mm) Foil-faced 



thermally lined with ½-inch, 2.0 lb/ft3 (12.7 mm, 32.04 kg/m3 ) density glass 

fiber with foil facing. The insulation 

R-Value is 2.2. The insulation is UL 

listed and meets NFPA-90A and UL 181 

standards as well as bacteriological 

standard ASTM C 665. There are no 






1" (25.4 mm) Foil-faced 



thermally lined with 1-inch, 2.0 lb/ft3 (25.4 mm, 32.04 kg/m3 ) density glass 

fiber with foil facing. The insulation 

R-Value is 4.3. The insulation is UL 

listed and meets NFPA-90A and UL 181 

standards as well as bacteriological 

standard ASTM C 665. There are no 



1" (25.4 mm) Double-wall 



thermally lined with a 1-inch, 2.1 lb./ft3 (25.4 mm, 33.6 kg/m3 ) composite 

density glass fiber with high-density 

facing. The insulation R-value is 3.0. 

The insulation is UL listed and meets 

NFPA-90A and UL 181 standards. The 

insulation is covered by an interior 

liner made of 26-gage galvanized 

steel. All wire penetrations are covered 

by grommets. There are no exposed 

edges of insulation (complete metal 

encapsulation). 

3/8" (9.5 mm) Closed-cell 



thermally lined with 3/8-inch, 4.4 lb/ft3 (9.5 mm, 40.0 kg/m3 ) closed-cell 

insulation. The insulation is UL listed 

and meets NFPA-90A and UL 181 

standards. The insulation has an 

R-Value of 1.4. There are no exposed 

edges of insulation (complete metal 

encapsulation). 

PRIMARY AIR VALVE 

Air Valve Round—The primary air 

inlet connection is an 18-gage 

galvanized steel cylinder sized to fit 

standard round duct. A multiple-point, 

averaging flow sensing ring is 

provided with balancing taps for 

measuring +/-5% of unit cataloged 

airflow. An airflow-versus-pressure 

differential calibration chart is provided. 

The damper blade is constructed of a 

closed-cell foam seal that is 

mechanically locked between two 

22-gage galvanized steel disks. The 

damper blade assembly is connected 

to a cast zinc shaft supported by selflubricating 

bearings. The shaft is cast 

with a damper position indicator. The 

valve assembly includes a mechanical 

stop to prevent over-stroking. At 4 in. 

wg, air valve leakage does not exceed 

1% of cataloged airflow. 

Mechanical 

Specifications 

Air Valve Rectangular—Inlet collar is 

constructed of 22-gage galvanized steel 

sized to fit standard rectangular duct. 

An integral multiple-point, averaging 

flow-sensing ring provides primary 

airflow measurement within +/-5% of 

unit cataloged airflow. Damper is 

22-gage galvanized steel. The damper 

blade assembly is connected to a cast 

zinc shaft supported by self-lubricating 

bearings. The shaft is cast with a 

damper position indicator. The valve 

assembly includes a mechanical stop 

to prevent over-stroking. At 3.0 in. wg, 

air valve leakage does not exceed 

44 cfm (21 L/s). 

Air Valve/Fan Combinations Available (I-P): 

Air Valve Fan 

Size Airflow Flow 

(in.) (Cfm) Size (Cfm) 

06 500 08 750 

08 900 08 750 

08 900 10 1425 

8x14 1800 10 1425 

Air Valve/Fan Combinations Available (SI): 

Air Valve Fan 

Size Airflow Flow 

(mm) (L/s) Size (L/s) 

06 (152) 236 08 354 

08 (203) 425 08 354 

08 (203) 425 10 673 

8x14 (203x356) 850 10 673 

FAN MOTOR 

Single-speed, direct-drive, permanent 

split capacitor type. Thermal overload 

protection provided. Motors will be 

designed specifically for use with an 

open SCR. Motors will be single-speed 

with standard SCR for speed control. 

Motors will accommodate antibackward 

rotation at start up. Motor 

and fan assembly is isolated from 

terminal unit. 

FAN SPEED CONTROL 

Variable Speed Control Switch 

(SCR)—The SCR speed control device 

is provided as standard and allows the 

operator infinite fan speed adjustment 

so the fan output may be modified to 

achieve exact cfm requirements. 

TRANSFORMER 

The 50-VA transformer is factoryinstalled 

in the fan control box to 

provide 24 VAC for controls. 


POWER DISCONNECT 

The power disconnect is provided as 

standard and allows the operator to 

turn the unit on or off by toggling to 

the appropriate setting. This switch 

breaks both legs of power to the fan 

and the electronic controls (if 

applicable). Not provided on LPEF 

pneumatic controls. 

OUTLET CONNECTION 

Flanged Connection—A 

rectangular opening on the unit 

discharge to accept a 90° flanged 

ductwork connection. 

FILTER 

A 1" (25 mm) filter is provided on the 

plenum inlet and attaches to the unit 

with a filter frame. 

ACCESS PANEL 

Internal access to unit is achieved 

through the plenum inlet. 

HOT WATER COIL 

Series Water Coils—factory-installed 

on the plenum inlet. 

The coil has 1-row with 144 aluminumplated 

fins per foot (.305 m) and, if 

needed, 2-row with 144 aluminumplated 

fins per foot (.305 m). Full fin 

collars provided for accurate fin 

spacing and maximum fin-tube 

contact. The 3/8" (9.5 mm) OD 

seamless copper tubes are 

mechanically expanded into the fin 

collars. Coils are proof tested at 

450 psig (3102 kPa) and leak tested at 

300 psig (2068 kPa) air pressure under 

water. Coil connections are brazed 

with right-hand configuration. 

ELECTRIC HEAT COIL 

The electric heater is factory-provided 

and -installed, UL recognized 

resistance open-type heater. It also 

contains a disc-type automatic pilot 

duty thermal primary cutout, and 

manual reset load carrying thermal 

secondary device. Heater element 

material is nickel-chromium. The heater 

terminal box is provided with 7/8" 

(22 mm) knockouts for customer 

power supply. Terminal connections 

are plated steel with ceramic 

insulators. Heater control access is 

on the discharge side of the unit. All 

fan-powered units with electric reheat 

are single-point power connections. 




ELECTRIC HEAT OPTIONS 

Magnetic Contactor—An optional 

electric heater 24-volt contactor for use 

with direct digital control (DDC) or 

analog electronic controls. 

Mercury Contactor—An optional 

electric heater 24-volt contactor for use 

with direct digital control (DDC) or 

analog electronic controls. 

P.E. Switch with Magnetic 

Contactor—This optional switch and 

magnetic contactor is for use with 


P.E. Switch with Mercury 

Contactor—This optional switch and 

mercury contactor is for use with 


Airflow Switch—An optional air 

pressure device designed to disable 

the heater when the system fan is off. 

Power Fuse—If power fuse is chosen 

with a unit with electric heat, then a 

safety fuse located in the line of power 

of the electric heater to prevent power 

surge damage to the electric heater. 

Any electric heat unit with a calculated 

MCA greater than or equal to 30 will 

have a fuse provided. 

Disconnect Switch—An optional 

factory-provided door interlocking 

disconnect switch on the heater 

control panel disengages primary 

voltage to the terminal. 

UNIT CONTROLS SEQUENCE OF 

OPERATION 

The controller continuously monitors 

the zone temperature against its 

setpoint and varies the primary airflow 

as required to meet zone setpoints. 

Airflow is limited by minimum and 

maximum setpoints. For a low-height 

parallel unit, the controller will 

intermittently start the fan upon a call 

for heat. Upon a further call for heat, 

any hot water or electric heat 

associated with the unit is enabled. 

1. Primary Airflow—The fan energizes 

when primary airflow drops below 

the fan setpoint airflow. The fan 

automatically starts when the zone 

temperature drops to the heating 

temperature setpoint. 

2. Zone Temperature—The fan 

energizes when the zone temperature 

drops to a selectable number of 

degrees above the heating 

temperature setpoint. 

Mechanical 


DIRECT DIGITAL CONTROLS 

DDC Actuator—Trane 3-wire, 

24-VAC, floating-point control actuator 

with linkage release button. Torque is 

35 in-lb minimum and is non-spring 

return with a 90-second drive time. 

Travel is terminated by end stops at 

fully-opened and -closed positions. An 

integral magnetic clutch eliminates 

motor stall. 

Direct Digital Controller—The 

microprocessor based terminal unit 

controller provides accurate, pressureindependent 

control through the use 

of a proportional integral control 

algorithm and direct digital control 

technology. The controller, named the 

Unit Control Module (UCM), monitors 

zone temperature setpoints, zone 

temperature and its rate of change, 

and valve airflow using a differential 

pressure signal from the pressure 

transducer. Additionally, the controller 

can monitor either supply duct air 

temperature or CO concentration via 

2 

appropriate sensors. The controller is 

provided in an enclosure with 7/8" 

(22 mm) knockouts for remote control 

wiring. A Trane UCM zone sensor 

is required. 

DDC Zone Sensor—The UCM 

controller senses zone temperature 

through a sensing element located in 

the zone sensor. In addition to the 

sensing element, zone sensor options 

may include an externally-adjustable 

setpoint, communications jack for use 

with a portable edit device, and an 

override button to change the 

individual controller from unoccupied 

to occupied mode. The override button 

has a cancel feature that will return the 

system to unoccupied. Wired zone 

sensors utilize a thermistor to vary the 

voltage output in response to changes 

in the zone temperature. Wiring to the 

UCM controller must be 18- to 22-awg. 

twisted pair wiring. The setpoint 

adjustment range is 50–88ºF (10–31°C). 

Depending upon the features available 

in the model of sensor selected, the 

zone sensor may require from a 2-wire 

to a 5-wire connection. Wireless zone 

sensors report the same zone 

information as wired zone sensors, 

but do so using radio transmitter 

technology. Therefore with wireless, 

wiring from the zone sensor to the 

UCM is unnecessary. 


Digital Display Zone Sensor with 

Liquid Crystal Display (LCD)— 

The digital display zone sensor contains 

a sensing element, which sends a signal 

to the UCM. A Liquid Crystal Display 

(LCD) displays setpoint or space 

temperature. Sensor buttons allow the 

user to adjust setpoints, and allow 

space temperature readings to be 

turned on or off. The digital display zone 

sensor also includes a communication 

jack for use with a portable edit device, 

and an override button to change the 

UCM from unoccupied to occupied. The 

override button has a cancel feature, 

which returns the system to 

unoccupied mode. 

System Communications—The 

Controller is designed to send and 

receive data from a Tracer Summit or 

other Trane controllers. Current unit 

status conditions and setpoints may 

be monitored and/or edited via this 

data communication feature. The 

network type is a twisted wire pair 

shielded serial communication. 

ANALOG ELECTRONIC CONTROLS 

Analog Actuator—A Trane 3- wire, 

24-VAC, floating-point control actuator 

with linkage release button. Torque is 

35 in-lb minimum and is non-spring 

return with a 90-second drive time. 

Travel is terminated by end stops at 

fully-opened and -closed positions. An 

integral magnetic clutch eliminates 

motor stall. 

Analog Electronic Controller—The 

controller consists of a circuit board 

that offers basic VAV unit operation 

and additional override functions and 

operates using 24 VAC power. The 

controller uses a capacitive type 

pressure transducer to maintain 

consistent air delivery regardless of 

system pressure changes. The 

enclosure with 7/8" (22 mm) knockouts 

for remote control wiring. A Trane 

electronic zone sensor is required. 




Analog-Electronic Thermostat— 

This single-temperature, wall-mounted 

electronic device utilizes a thermistor to 

vary the voltage output in response to 

changes in the zone temperature. 

Connections to the VAV unit circuit 

board are made using standard threeconductor 

thermostat wire. The 

setpoint adjustment range is 63–85ºF 

(17–29°C). The sensor is available in 

two models. One model has a 

concealed, internally-adjustable 

setpoint. The other model has an 

externally-adjustable setpoint. 

PNEUMATIC CONTROLS 

Normally Open Actuator— 

Pneumatic 3 to 8 psig (20 to 55 kPa) 

spring-range pneumatic actuator. 

3011 Pneumatic Volume Regulator 

(PVR)—The regulator is a thermostat 

reset velocity controller, which 

provides consistent air delivery within 

5% of cataloged flow down to 18% of 

unit cataloged cfm, independent of 

changes in system static pressure. 

Factory-calibrated, field-adjustable set 

points for minimum and maximum 

flows. Average total unit bleed rate, 

excluding thermostat, is 28.8 scim at 

20 psig (7.87 ml/min at 138 kPa) supply. 

UNIT OPTIONS 

Power Fuse (LPCF, LPWF)— 

Optional fuse is factory-installed in the 

primary voltage hot leg. 

HOT WATER VALVES 

Two-Position Valve—The valve is a 

field-adaptable, 2-way or 3-way 

configuration and ships with a cap to 

be field-installed when configured as a 

2-way valve. All connections are 

National Pipe Thread (NPT). The valve 

body is forged brass with a stainless 

steel stem and spring. Upon demand, 

the motor strokes the valve. When the 

actuator drive stops, a spring returns 

the valve to its fail-safe position. 

Flow Capacity – 1.17 Cv 

Overall Diameter – ½" NPT 

Close-o f Pressure – 30 psi (207 kPa) 


Overall Diameter – 3/4" NPT 

Mechanical 


Close-o f Pressure – 14.5 psi (100 kPa) 


Overall Diameter – 1" NPT 

Close-o f Pressure – 9 psi (62 kPa) 

Maximum Operating Fluid 

Temperature – 203ºF (95ºC) 

Maximum system pressure – 300 psi 

(2067 kPa). Maximum static pressure – 

300 psi (2067 kPa) 

Electrical Rating – 7 VA at 24 VAC, 

6.5 Watts, 50/60 Hz 

8 feet (2.44 m) of plenum rated wire lead 

is provided with each valve. 

Proportional Water Valve—The valve 

is a field-adaptable, 2-way or 3-way 

configuration and ships with a cap over 

the bottom port. This configures the 

valve for 2-way operation. For 3-way 

operation, remove the cap. The valve is 

designed with an equal percentage plug. 

The intended fluid is water or water and 

glycol (50% maximum glycol). The 

actuator is a synchronous motor drive. 

The valve is driven to a predetermined 

position by the UCM controller using a 

proportional plus integral control 

algorithm. If power is removed, the 

valve stays in its last position. The 

actuator is rated for plenum applications 

under UL 94-5V and UL 873 standards. 

Pressure and Temperature Ratings – 

The valve is designed and tested in full 

compliance with ANSI B16.15 Class 250 

pressure/temperature ratings, ANSI 

B16.104 Class IV control shutoff 

leakage, and ISA S75.11 flow 

characteristic standards. 

Flow Capacity – 7.30 Cv, 4.60 Cv, 1.80 Cv, 

and 0.79 Cv 

Overall Diameter – ½" NPT, ¾" NPT 

(7.30 Cv) 

Maximum Allowable Pressure – 345 psi 

(2415 kPa) 

Maximum Operating Fluid 

Temperature – 281ºF (138°C) 

Maximum Close-o f Pressure – 55 psi 

Electrical Rating – 4 VA at 24 VAC. 

10 feet (3.05 m) of plenum rated 

22-gage wire for connection. 

Terminations are #6 stabs.

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