7
No. Description
Part No.
1
Return Boiler - 3/4” BSP
2 Flow Boiler - 3/4” BSP
3 Pressure Reducing Valve Multibloc (3 bar)
includes Item 4
355030
4 Expansion relief valve (6 bar)
5 Temperature and Pressure Relief Valve
550853
6 Tundish
219005
7 Immersion heater (2 kW)
70628
9 Immersion heater thermostat
80020
10 Thermostat boiler
80030
11 Cold Feed Tube (not supplied)
12 Hot water outlet - 3/4” BSP
13 Elbow / Drain cock
250445
14 Cable entry
15 Electrical box
16 Discharge pipe (not supplied)
17 Motorized valve (Not factory fitted)
92000
18 Expansion vessel
AX 12
19 Secondary return / Return plate heat exch.
20 Flow - plate heat exchanger
in illustration.
8. Fit the tundish (6) to the bottom connection
of this tee.
9. If a balanced mains pressure cold water
supply is required to a shower or bidet (over
rim type only), remove the blanking cap from
the pressure reducing valve (3) and connect
to the shower or bidet cold supply. Do not
use this balanced cold outlet to feed all cold
outlets.
10. Connect the cold supply to the PRV (3).
11. Fit the expansion vessel to the wall close to
the water heater using the enclosed mount-
ing bracket. Connect the expansion vessel to
the PRV.
Hot water supply
12. Connect the hot water supply pipe to the
outlet (12). Ensure connection is water tight.
Secondary return (optional)
13. Connect secondary return if required to the
Tee piece in the cold feed tube see 5 above
and illustration.
Discharge pipe
14. Connect the discharge pipe (16) from the
tundish (6). This must have a continuous fall
and be fitted in accordance with The Building
Regulations (see Fig. 4). The tundish should
