Specifications

Multipoint

WATER REQUIREMENTS

3.1 The heater must be connected via the pressure relief valve to a cold supply

having a minimum pressure of 0.1Mpa (1bar) and a maximum of 0.5Mpa (5bar).

Both inlet and outlet connections are suitable for 15mm diameter copper pipe.

Outlet pipe from unit may reduce to 10mm diameter to improve performance.

3.2 The tee piece and pressure relief valve must be situated where shown and the

relief valve discharge port plumbed via an air break (tundish) to a safe, visible

place where there is no risk from hot water to persons using the building.

3.3 The discharge pipe must fall continuously from the valve outlets and be

unobstructed.

3.4 The provision of a service stop valve in the cold supply pipe will assist in the

event of any subsequent servicing or maintenance.

3.5 To obtain optimum performance a ow restrictor must be tted where shown

(see gure 3). This provides the user with the means to govern the ow (and

therefore temperature which is dependent upon ow) at the outlet (see under

SETTING FLOW RATE).

3.0 SITE REQUIREMENTS

A - OUTLET VALVE

B - FLOW RESTRICTOR

C - POWERPACK

D - PRESSURE RELIEF VALVE

E - SERVICES STOP VALVE

Figure 3