-4-
4. ZPG-SERIES WITH CIRCULATOR (PLUG N’ GO)
PIPING INSTALLATION
DOMESTIC WATER PIPING
1.
Connect the cold water supply to the pipe labeled COLD
WATER.
2.
Connect the HOT WATER piping to the domestic hot water
system.
3.
Make an 8-inch “heat trap” on the HOT WATER outlet as shown
in the diagram. This will reduce standby losses from heat
migrating up the piping.
4.
When all domestic water piping is complete, open the cold
water supply and allow some water to enter the tank. Look and
listen for signs of leaks and repair as necessary before
continuing.
Note:
If installing on a city supply, ensure a dedicated Thermal
Expansion tank is used.
5.
Install a blowdown tube on the T&P relief valve outlet. Plumb
to within 6 inches above a floor drain or as directed by
plumbing code.
BOILER PIPING
1.
Plumb the BOILER SUPPLY line. The circulator and flow check
are factory installed
2.
Pipe the BOILER RETURN connection to the boiler return line.
Be sure the return line is NOT
plumbed to the suction side of any
heating circulators. This may require moving the heating
circulator off the boiler tapping on packaged boilers.
Failure to do so will result in overheating and tank
damage when the heating system is in operation.
3.
After completing the boiler piping, slowly open the boiler fill
valve and pressurize the heat exchanger loop. Check for leaks
and repair as necessary. Proceed to the appropriate wiring
section in this manual.
CIRCULATOR
PUMP
BOILER SUPPLY
BOILER RETURN
Aquastat
T&P RELIEF
VALVE
OUTLET
HOT WATER
OUTLET
COLD WATER
INLET
LEFT SIDE . . . . . . . . . . . . .1”
RIGHT SIDE . . . . . . . . . . .1”
TOP . . . . . . . . . . . . . . . . . .9”
REAR . . . . . . . . . . . . . . . . .1”
FLOOR . . . . . . . . . . . . . . .0”
FRONT . . . . . . . . . . . . . . .1”
Clearance From Combustible Surfaces
LEFT
12”
RIGHT
12”
FRONT
30”
HEAD ROOM
36”
REAR
1”
Recommended Clearance for Servicing
Wiring Conduit