Installation guide

SECTION XX • XXXXXXXXX
6
SECTION 2 • TECHNICAL DETAILS
6
M
odel Reference CWH 30/200 60/200 90/200 120/200
30/300 60/300 90/300 120/300
Input gross Hs min/max 6.7–31.1 kW 13.4–62.2 kW 20.1–93.3 kW 26.8-124.4 kW
Input nett Hi min/max 6.0–28.0 kW 12.0–56.0 kW 18.0-84.0 kW 24.0-112.0 kW
Output (tank set point = 60°C) min/max 6.5–30.5 kW 13.0–61.0 kW 19.5-91.6 kW 26.0-122.1 kW
Natural Gas, G20
Gas Consumption 2.96 m
3
/h 5.93 m
3
/h 8.89 m
3
/h 11.85 m
3
/h
Minimum Dynamic Gas Supply Pressure 18 mbar 18 mbar 18 mbar 18 mbar
Propane, G31
G
as Consumption 2.18 Kg/h 4.35 Kg/h 6.53 Kg/h 8.71 Kg/h
Minimum Dynamic Gas Supply Pressure 37 mbar 37 mbar 37 mbar 37 mbar
Efficiency (gross) 98% 98% 98% 98%
Efficiency (nett) 109% 109% 109% 109%
Standby Heat Loss 780 Mj per month
NO
x
level @ 0% O
2
25ppm 25ppm 25ppm 25ppm
NO
x
level @ 0% O
2
44mg/kWh 44mg/kWh 44mg/kWh 44mg/kWh
Noise level
✽
51dBA 51dBA 51dBA 51dBA
Ionisation current – max 6.0µA 6.0µA 6.0µA 6.0µA
Ionisation current – min 4.0µA 4.0µA 4.0µA 4.0µA
HSI resistance 1.0 – 1.4 kΩ 1.0 – 1.4 kΩ 1.0 – 1.4 kΩ 1.0 – 1.4 kΩ
Max recovery thru 50°C 480 l/h 960 l/h 1440 l/h 1920 l/h
Max recovery thru 56°C 429 l/h 856 l/h 1284 l/h 1712 l/h
Time to recover tank thru 50°C rise
200 litre capacity 25 mins 13 mins 9 mins 7 mins
300 litre capacity 38 mins 19 mins 13 mins 10 mins
Flue size (concentric) Internal/External 80/125 80/125 130/200 130/200
Flue Size (conventional) 80 80 130 130
Max flue run – concentric
✽✽
14 12 14 14
Max flue run – conventional
✽
✽✽
50 20 50 40
Max flue static pressure 140 Pa 140 Pa 140 Pa 140 Pa
Inlet/Outlet connections 1½” BSP 1½” BSP 1½” BSP 1½” BSP
Return connection 1” BSP 1” BSP 1” BSP 1” BSP
Nominal operating water pressure 3.5 bar 3.5 bar 3.5 bar 3.5 bar
Maximum water pressure 6.0 bar 6.0 bar 6.0 bar 6.0 bar
Minimum water pressure 1.0 bar 1.0 bar 1.0 bar 1.0 bar
Gas connection (gas cock supplied)
3
⁄4”
3
⁄4”
3
⁄4”
3
⁄4”
Electrical supply All models: 230/50V/Hz
Power consumption 170 W 340 W 510 W 680 W
Weight – empty (200 litre) 155 kg 170 kg 185 kg 200 kg
Weight – empty (300 litre) 165 kg 180 kg 195 kg 210 kg
Weight – full (200 litre) 355 kg 370 kg 385 kg 400 kg
Weight – full (300 litre) 465 kg 480 kg 495 kg 513 kg
Shipping weight (200 litre) 178 kg 193 kg 208 kg 213 kg
Shipping weight (300 litre) 188 kg 203 kg 218 kg 233 kg
Shipping depth 1040 mm 1040 mm 1040 mm 1040 mm
Shipping width 880 mm 880 mm 880 mm 880 mm
Shipping height (200 litre) 1653 mm 1653 mm 1653 mm 1653 mm
Shipping height (300 litre) 2077 mm 2077 mm 2077 mm 2077 mm
✽
Noise level measured at 2m from flue terminal
✽✽
Reduce flue length by 1.2m for 90° bend, 0.7m for 45° bend and 1.5m for condensate trap
✽✽✽
Reduce flue length by 4m for 90° bend, 2m for 45° bend and 4m for condensate trap
The MAXXflo range features stainless steel tanks with external heat exchanger(s) and fully automatic electronic control with
BEMS interface as standard. The heaters must be installed with a minimum water pressure of 1 bar. The heaters are factory
fitted with temperature and pressure relief valve(s). A gas cock, water draw-off cock and comprehensive instruction manual
are also included. The water heaters can be fitted with concentric flue for room sealed applications; horizontal or vertical flue
kits must be ordered separately – see pages 20 and 23.
Conventional flue, suitable for condensing applications can be used if the plantroom is ventilated.