Installation Of Flow Switch - Heat Transfer MODCON VWH 300 LP Installation & Maintenance

PART 5: BOILER PIPING
n
WARNING
Never use dielectric unions or galvanized steel
fittings when connecting to a stainless steel
storage tank or boiler.
n
WARNING
When raising tank temperature, you increase
the risk of scalding – Please use a water
tempering or mixing valve and extreme caution.
Consult codes for conformance.
E. INSTALLATION OF FLOW SWITCH
Note: If you are converting the Mod Con boiler
to VWH you will follow steps 1-9. If you have
purchased a factory Mod Con VWH you will only
need fo follow steps 1, 2, 3 and 8.
1. Attach flow paddle as shown:
GAS-FIRED HOT WATER SUPPLY BOILER
(CONTINUED)
2. Thread brass Tee into outlet nipple using pipe
dope:
3. Thread switch into Tee using pipe dope,
making certain the Flow Arrow points in the
correct direction:
4. Disconnect red wire on the Low Water Cut off
Probe and connect it to the red wire from the
wire harness (included in kit):
Boiler Manual
16