46
①
Warm water outlet
②
Warm water inlet
ØD: For all modules 1 ¼”
8.3. Operation Limits
Please check the capacity table for the unit’s capacity values.
Operation value on the water side for additional hot water coil is limited to 90/70 water regime. Hot water
coil isn’t used for hot water or steam regimes over this.
For air side operation values, in case the External air temperature drops under 0°C, water pumps keep on
operating even if the boiler doesn’t work.
In case External air temperature drops under -10°C, the boiler should work and continuous warm water
cycle should be kept going between the boiler and the battery.
In case External air temperature drops under -20°C, fresh air damper of the system should certainly be
deactivated, because freeze risk will increase. Warm water cycle should be kept going without interruption.
8.4. Controls to be Considered Before Commissioning
