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WARNING
Failure to properly pipe boiler may result in
improper, unsafe system operation and void
manufacturer's warranty.
DO NOT improperly pipe boiler.
WARNING
All steam and hot water pipes must have
clearances of at least 1/2" from all
combustible construction.
I. WATER BOILERS - INSTALL WATER TRIM
Items for water trim are located in the water trim carton
(except for the separately ordered low water cutoff and
tankless heater control). Figures 26a and 26b show the
proper tappings for each item.
1. Install the temperature pressure gauge.
2. Install the low water cutoff (supplied by others).
Follow manufacturer’s instructions furnished with
control.
3. Install the immersion well and mount the aquastat
(limit control) onto the well.
4. Install the pressure relief valve as shown in Figure
40b. Relief valve must be installed in vertical
position.
5. Plug extra boiler tappings.
6. Install required bottom blowoff/drain valve
(supplied by others) per minimum piping
requirements for water boilers, see Figures 31, 32
and 33.
WARNING
Relief valve discharge piping must be piped
within six (6) inches of floor or to floor
drain to eliminate potential of severe burns.
Do not pipe in any area where freezing
could occur. Do not install any shut-off
valves, plugs or caps in discharge piping.
J. BURNER INSTALLATION
Refer to burner manufacturer’s installation manual
for proper installation, fuel piping, wiring, burner
adjustment, burner start-up and service instructions.
Consult Section VI of this manual for burner
specifications and burner settings.
K. BOILER PIPING - HEATING APPLICATIONS
CONNECT SUPPLY AND RETURN PIPING TO
HEATING SYSTEM (see Figures 31, 32 and/or 33 for
water boilers and Figures 34 and 35 for steam boilers).