Y
Connect the heating pump (circuit
A
).
If underfloor heating is being used, put a safety
thermostat in place after the heating pump. The
safety thermostat will shut down the heating
pump in the event of overheating.
U
Low loss header.
I
Connect the DHW tank anode.
CAUTION
4
If the tank is fitted with a Titan Active
System® impressed current anode,
connect the anode to the inlet (+ on the
anode, - on the tank).
4
If the tank is not fitted with an impressed
current anode, put the simulation
connector in place (delivered with the DHW
sensor - package AD212).
O
Connect the heating pump (circuit
B
).
P
Connect the 3-way valve (circuit
B
).
a
Connect the DHW sensor (Package AD212).
z
Connect the domestic hot water looping pump to the
AUX
outlet on the AD249 option
e
Do not connect anything to the terminal block.
4. Installation
MCA 15 - MCA 25 MCA 25/28 MI
38
29/04/2010 - 300022146-001-B
