Atmos Heating Systems
11
Connection to combi boiler
EXPLANATORY NOTES:
1) TMV1 is a non-adjustable thermostatic mixer valve. Connect as shown and ignore the
arrows on the body of the valve. This is a diverter valve and works in reverse. The
operation is that if the water from the solar storage tank is greater than 45 deg C, it goes
straight to the taps. If it is lower it is diverted through the boiler and is heated up.
2) TMV2 is an adjustable thermostatic mixer valve with a black adjuster head. This should
be fitted as shown, and the arrows on the body are correct.
K
means Cold (cold inlet) ,
W
means Warm (hot inlet), and
M
means Mixed (or blended) out to the taps. Adjust hot
water to desired tap outlet temperature (clockwise gets colder, and anti-clockwise gets
warmer).
CONNECTIONS:
1) Heated water from solar store connects into
M
on TMV1
2)
W
on TMV1 connects into cold inlet on combi boiler
3)
K
on TMV1 connects to
W
on TMV2 with T-off from domestic hot water outlet on combi
boiler.
4) Incoming cold water connects into
K
on TMV2
5)
M
on TMV2 connects to domestic hot water taps
