Hearth and Home Technologies CD4842MLR, CD4842MR Electrical Information, Wiring Requirements

12 Electrical Information

A. Wiring Requirements

NOTICE: This appliance must be electrically wired and grounded in accordance with local codes or, in the absence of local codes, with National Electric Code ANSI/NFPA 70-latest edition or the Canadian Electric

Code CSA C22.1.

•Wire the appliance junction box to 110-120 VAC. This is required for use of optional accessories (standing pilot ignition) or proper operation of the appliance (Intellifire ignition).

•Low voltage and 110 VAC voltage cannot be shared within the same wall box.

WARNING! Risk of Shock or Explosion! DO NOT wire 110V to the valve or to the appliance wall switch. Incorrect wiring will damage controls.

Determine if the appliance uses an Intellifire ignition sys- tem or standing pilot ignition system:

•Open the control access panel.

•A red or black ignitor button (as shown in Figure 12.1) indicates this appliance is standing pilot ignition.

Ignitor Button

Figure 12.1 Ignitor Button

B. Standing Pilot Ignition System Wiring

•The standing pilot ignition system wiring does not require a 110 VAC supply to operate.

•A 110 VAC junction box MUST be installed for use with a fan or remote control. See Figure 12.2 for junction box wiring. Keep wire lengths short as possible.

NOTICE: DO NOT wire 110 VAC to the millivolt valve! This will damage the valve.

•If using a thermostat use one compatible with a millivolt gas valve system:

-Install the thermostat in the location as indicated in the thermostat instructions to ensure proper operation of appliance.

-Use low resistance thermostat wire for wiring from ignition system to the wall switch and thermostat.

-Keep wire lengths short as possible.

C. Intellifire Ignition System Wiring

•Wire the appliance junction box to 110 VAC for proper operation of the appliance.

WARNING! Risk of Shock or Explosion! DO NOT wire IPI controlled appliance junction box to a switched circuit. Incorrect wiring will override IPI safety lockout.

•Refer to Figure 12.3, Intellifire Pilot Ignition (IPI) Wiring Diagram.

•This appliance is equipped with an Intellifire control valve which operates on a 3 volt system.

•Plug the 3-volt AC transformer into the appliance junction box to supply power to the unit OR install two D cell batteries (not included) into the battery pack before use.

NOTICE: Batteries should not be placed in the battery pack while using the transformer. Remove batteries before using the transformer, and unplug the transformer before installing the batteries. Battery polarity must be correct or module damage will occur.

D. Optional Accessories Requirements

•This appliance may be used with a fan, wall switch, wall mounted thermostat and/or a remote control.

Wiring for optional Hearth & Home Technologies ap- proved accessories should be done now to avoid re- construction. Follow instructions that come with those accessories.

50 Heatilator • Caliber Mesh CD Series-SIT Valve • 4040-849 Rev J • 06/08