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Cold Water Balance
Outlet
Heating Mode Operating
If the ambient temperature is very high the fan motor will stop running to protect the unit.
Defrosting
When in heating mode, the unit will defrost automatically, when required. The defrosting process takes 2
to 10 minutes to complete. The fan motor will stop running when the unit is defrosting.
Working Conditions
The unit should be run in ambient temperatures of -7
°
C to 40
°
C. The unit includes sophisticated electronic
devices - do not fill the Ecocent with un-treated water from a lake, river water or groundwater and be sure
to put an in-line strainer (open vented) and scale inhibitor in the cold water feed - failure to do so will
invalidate the warranty/guarantee.
6.0 INSTALLATION
6.1
The P&T valve is a mandatory part of the system. It must not be obstructed, its operation
impeded or its configuration or modified in any way. The outlet MUST be left unblocked
and the drain pipe MUST lead to a suitable drain via a tundish.
6.2 Indirect Thermal Cut-Out (Dual Stat) and 2-port Motorised Valve
To comply with Building Regulations and to prevent the unit from overheating, a 2-port
motorised valve MUST be fitted to
the primary flow to the indirect
coil(s).
6.3 Pipe Fittings
All pipe connections to the unit are 22mm. The
fittings are also threaded 3/4” BSP male.
Air ducts must be at least 150mm in internal
diameter. It is recommended that you use
insulated ducting on both inlet and outlet
ducts.
6.4 Cold Water Supply
The cold water feed should only be from a mains or treated well water supply. Under no circumstances
should an untreated well, lake or other source be used.
A 22mm cold water supply is recommended, however, if a 15mm (1/2”) supply exists which provides
sufficient flow (see section 2.3) this may be used. More flow noise may be experienced from small bore
pipes due to the increased water velocity through them. The Cold Water Combination Valve supplied
with the unit incorporates a full flow isolating valve which will enable the unit to be isolated from the
mains supply for maintenance or servicing. To close the valve the black handle should be turned so that it
lies at 90° to the direction of flow. To open turn the handle so that it lies parallel to the direction of flow.
