6
Plumbing
There is an integrated check valve in the coil assembly
of
the CAF / AH unit
.
Note: Take care during soldering to avoid debris or
solder from lodging in the check valve.
Note: It is critical to follow the piping configuration
shown. Maintain a minimum distance of 12” above
the CAF/AH. This will minimize thermal siphoning in
the combo system.
* It should be noted that problems have been observed when using the side
tappings on certain water heaters; therefore, it is strongly recommended to use the top
water tappings as indicated in Figure 1 to minimize thermal siphoning and related
issues.
Water
Heater
To
House
CAF
or
AH
Min. 12" (305 mm)
above top of
CAF / AH
12"
Water
Heater
CAF
or
AH
Min. 12" (305 mm)
above top of
CAF / AH
To
House
12"
Figure 1
Figure 2