Ventilation Guide

Xcell Stratum S120Q, S155QVI & S275QVI
Compact, lightweight, low-profile horizontal heat recovery unit
Xcell Stratum heat recovery units are compact, low profile and extremely
installer-friendly, being much lighter to handle than metal cased units.
They incorporate a high efficiency heat recovery counterflow cell for heat
recovery of up to 90%, and feature high efficiency F5 G4 filters and can be
both ceiling or loft mounted. The B1 rated EPP structural material has a high
U value, so no cold bridging and features integral fixing points for simple loft
or ceiling mounting. Available in three variable speed performance models
with winter defrost, summer bypass and multiple control feature options.
Product Selector S120Q S155QVI S275QVI
Reference Number 92923AW 92920AW 92921AW
Motor Type EC EC EC
Maximum Supply/Extract Performance (FID, m³/h) 185 155 275
Maximum Supply/Extract Performance (m³/h @100Pa) 170 155 240
Power Usage Maximum (W) 220-240V AC 50-60Hz 120 110 193
Efficiency (%) 90 88 90
Speeds (adjustable) 2 3 3
Speed Control Type Multi-programmable Multi-programmable Multi-programmable
Noise (dBA@3m) – 31/37/46 32/39/47
Spigot Diameter (mm) 125 125 160
Installation Orientation Horizontal Horizontal Horizontal
Body Material EPP B1 Fire Rated EPP B1 Fire Rated EPP B1 Fire Rated
Weight (kg) 11 11 12
Systems
UK Guarantee (years) 5* 5* 5*
*5 years on motor – 2 years on other parts.
Systems
826mm
(4x) Ø M8
320mm
Dimensions (mm)
Model Height
S120Q 240
Atmosphere Discharge
495mm
510mm
550mm
S155QVI 240
S275QVI 305
Atmosphere Intake
Dwelling Supply
Dwelling Extract
620mm
(4x) Ø 10,6
Product Features S120Q S155QVI S275QVI
Reference Number 92923AW 92920AW 92921AW
Trade Price £790.00 £934.50 £1,023.75
Timer ✓ ✓ ✓
88% Heat Recovery Efficiency ✓
90% Heat Recovery Efficiency ✓ ✓
SAP Appendix Q Listed
✓
Summer Bypass ✓ ✓
EC Motor ✓ ✓ ✓
Constant Velocity Motor ✓ ✓
Passivhaus Approved ✓ ✓
ANCILLARIES See pages 106 – 121
82 www.xpelair.co.uk 83