Weil-McLain PFG-7 manual Wiring multiple zones, Canadian installations Chain & s-hook

PFG Series 7 Gas-fired Water Boiler — Boiler Manual

Figure 6 Typical wiring – zoning with zone valves

Wiring multiple zones

Refer to zone valve manufacturer’s literature for wiring and application. A separate transformer is required to power zone valves. Zoning with circulators requires a relay for each zone circulator.

Canadian installations – Chain & s-hook

See illustration below.

The chain and s-hook should be installed according to this instruction by a qualified installer/service technician prior to boiler installation. Please follow steps outlined below for the installation of the chain and s-hook.

1. Crimp one side of each s-hook to each end of the chain.

2. Remove the two screws that attach the transformer plate to the junction box.

3. Remove the transformer relay assembly and drill a 1/8” hole through the plate as shown below. Do not allow drill shavings to fall into the boiler jacket or onto any control.

4. Crimp the s-hook to the 1/8” hole in the transformer plate. Crimp the other side of the chain to the junction box lower flange as shown below.

5. Replace the transformer relay assembly on the junction box and secure with the two screws removed in step 2.

Figure 6 Chain and s-hook installation – Canadian installations only

Part Number 550-110-641/0605 13