Connect the supply and return piping of the
CH circuit: FOR H MODEL BOILERS
Connect the CH supply and the return pipes
using hot water couplings (Fig. 7.3)
CH supply
Cxxx types: CH return
Hxxx types: CH return and Tank return
Figure 7.3 Central Heating (CH) supply and
return connectors
Connect the tank: H MODEL BOILERS
CH system
Tank
Install T-piece here
Figure 7.5 Connect the tank
Hydraulic:
Connect cold water supply to the mains water in connection on behalf of operation of the filling loop (B)
Connect the (hot) tank supply to the hot water coil connection of the tank (C)
Connect the CH supply to the CH system in accordance with the (local) regulations. (A)
Connect the CH return and the tank return to the T-piece as shown in the figure above (D)
Connect the other end of the T-piece to the return connection of the boiler.
Electric:
Disconnect the power to the appliance.
Connect the 10k Ohm NTC sensor in the tank to the tank connector on the Print Circuit Board (fig.9.3).
In case no 10K Ohm NTC tank sensor came with the tank contact the supplier.
Reconnect the power supply.
Connect the tap (DHW) water circuit: FOR C (COMBI) MODELS
The supply pipe for cold tap water (Fig. 7.4) is provided with a flow limiter depending on the type of
pipe in accordance with the (local) regulations.
CH return
CH supply DHW outlet
Flow limiter Cold tap water inlet (Combi boilers)
Figure 7.4 DHW connectors, flow limiter location
41
CH supply
A
Mains water
CH and
Tank supply hot
supply for
(H Models)
Tank return
filling loop
C
(H Models)
(H model)
types
B
D
R Series R 100
boiler (e.g.
: 8l/min. (2.1 gal/min) of 60 °C (140 °F)). Connect the supply and return
in accordance with the (local) regulations.