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Installation, Owner, and Diagnostic Manual IntelliPak® - Trane

Installation, Owner, and Diagnostic Manual IntelliPak® - Trane

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Electric Heat <strong>Installation</strong><br />

The electric heat option consists of a<br />

single stage heater <strong>and</strong> is used in<br />

IntelliPak units or units with a fieldinstalled<br />

thermostat. The electric heater<br />

ships separate for field installation <strong>and</strong><br />

wiring. Available heater kW per unit size<br />

is listed in Table I-PR-3. Electric heat can<br />

be installed on units with either a vertical<br />

or horizontal discharge. However, it<br />

cannot be installed on units with plenums.<br />

See Figure I-PR-10, Tables I-PR-4, <strong>and</strong><br />

I-PR-5 for electric heat dimensional data.<br />

Table I-PR-3. Available Electric Heat kW<br />

Unit Size Heater kW<br />

20 Tons 16<br />

25 Tons 20<br />

30 Tons 24<br />

32 Tons 26<br />

35 Tons 28<br />

<strong>Installation</strong> Procedure<br />

1. Remove the fan discharge shipping<br />

covers, if they have not already been<br />

removed.<br />

2. Install the open-cell gasket around the<br />

discharge opening on the heater.<br />

3. Position the electric heater so that the<br />

unit fan discharge openings line up with<br />

the electric heater openings. For a<br />

vertical discharge unit, position the<br />

electric heater as shown in Figure I-PR-<br />

10.<br />

Figure I-PR-10. Vertical discharge electric<br />

heat installation.<br />

<strong>Installation</strong><br />

4. Use the hole pattern in the electric heat<br />

as a template for marking <strong>and</strong> drilling<br />

3 /16” diameter holes in the unit.<br />

5. Bolt the electric heaters to the unit<br />

using 1 /4” sheetmetal screws.<br />

Note: It is very important that electric<br />

heaters are selected based on unit voltage<br />

<strong>and</strong> tonnage because discharge opening<br />

sizes vary by unit tonnage.<br />

Electric Heat Coil Wiring Procedure<br />

1. Before wiring the electric heater,<br />

remove the unit wiring diagram from<br />

the unit control panel <strong>and</strong> refer to the<br />

connection points.<br />

Figure I-PR- 1. Electric heater dimensions.<br />

Pre-Startup<br />

Requirements<br />

Disconnect electrical power<br />

source before wiring electric heat<br />

to unit to prevent risk of injury or<br />

death from electrical shock.<br />

2. Punch out the appropriate knockouts in<br />

the electric heater control box <strong>and</strong> on<br />

the unit’s left side panel. Run the wires<br />

down the side of the unit from the<br />

heater to the lower unit control box.<br />

Place the wire in conduit in accordance<br />

with local code.<br />

Use only copper conductors for<br />

electrical connections to prevent<br />

equipment damage.<br />

Table I-PR-4. Electric Heat Dimensions - English - (inches)<br />

Unit Size B1 B2 Z<br />

20 Tons 10 3 /4 15 5 /8 27 3 /4<br />

25 Tons 12 1 /4 15 5 /8 26 3 /4<br />

30, 32, 35 Tons 14 3 /4 15 5 /8 23 3 /4<br />

Table I-PR-5. Electric Heat Dimensions - Metric - (mm)<br />

Unit Size B1 B2 Z<br />

20 Tons 273 397 705<br />

25 Tons 311 397 679<br />

30, 32, 35 Tons 375 397 603<br />

����� WARNING<br />

!<br />

����� CAUTION<br />

!<br />

46 SCXG-SVX01B-EN

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