Smith Cast Iron Boilers JW727, JWF507, JWF657, JW527, JW327, JW317, JWF307V, JW717, JW517 Installation

Installation

The heating mode may be one of the following options:

1.A fan coil/air handler (Figure 14).

2.A hydronic baseboard (finned tube) loop (Figure 15).

3.A hydronic in-floor heating loop (Figure 16).

The following is a list of requirements for the installation of the heating loop to the water heater.

1.Install shut-off valves and unions so that the water heater can be isolated from the heating module should servicing of the water heater become necessary.

2.Install a drain valve at the lowest point of the heating loop so that water can be drained from the heating mod- ule without affecting the water heater.

3.If the air handler does not have a venting means at the highest point of the piping arrangement, install an air bleed at the highest point of the plumbing arrangement.

4.If solenoid valves are used for zone heating applica- tions, they must include electrical proof of valve full open position and must be connected to the water pump.

HOT WATER
TO HOUSE	COLD SUPPLY
FIXTURE	CHECK VALVE (IF
	USED REQUIRES
	EXPANSION TANK)
MIXING	EXPANSION TANK
VALVE
	(OPTIONAL)

MC H

		FLOW	CHECK
200mm TO		CONTROL	VALVE
300mm (8 in.
			EXTERNAL
TO 12 in.)		COLD
			CIRCULATOR
HOT
		INLET
OUTLET			HOSE BIB
			(OPTIONAL)
		SUPPLY
	WATER		RETURN
	HEATER
			HYDRONIC
			BASEBOARDS
			(SERIES CON-
			NECTED
			SHOWN)

Figure 15 Combo Heating - Baseboard

HOT WATER
TO HOUSE	COLD SUPPLY
FIXTURE	CHECK VALVE (IF
	USED REQUIRES
	EXPANSION TANK)
MIXING	EXPANSION TANK
VALVE
	(OPTIONAL)

MC H

		FLOW	CHECK
200mm TO		CONTROL	VALVE
300mm (8 in.
			EXTERNAL
TO 12 in.)		COLD
			CIRCULATOR
HOT
		INLET
OUTLET			HOSE BIB
			(OPTIONAL)
		SUPPLY	RETURN
	WATER		DRAIN/PURGE
	HEATER
			VALVE
			INTERNAL
			CIRCULATOR
			AIR HANDLER

Figure 14 Combo Heating - Air Handler

HOT WATER
TO HOUSE	COLD SUPPLY
FIXTURE	CHECK VALVE (IF
	USED REQUIRES
	EXPANSION TANK)
MIXING	EXPANSION TANK
VALVE
	(OPTIONAL)

MC H

		FLOW	CHECK
200mm TO		CONTROL	VALVE
300mm (8 in.
			EXTERNAL
TO 12 in.)		COLD
			CIRCULATOR
HOT
		INLET
OUTLET			HOSE BIB
			(OPTIONAL)
		SUPPLY
	WATER
	HEATER
			RETURN
			HYDRONIC
			IN-FLOOR
			LOOP

Figure 16 Combo Heating - In-Floor Loop

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