ELECTRICALWIRING
NOTE: If it is necessary to replace any of the original wiring, it must be replaced with 105° C wire or its equivalent, and /or 150° C wire or its equivalent as originally built.
MILLIVOLT SYSTEM
The Millivolt System residential heater is equipped with a
ELECTRONIC INTERMITTENT IGNITION DEVICE SYSTEM (IID)
NOTE: Heaters are factory wired for 240V power sup- ply.
The standard field wiring connection is on the right side of the heater.
To wire the heater from the left side, follow the steps below:
1.Remove the two (2) screws that hold down the junction box to the sway brace. Untie excess yellow wires located behind the junction box.
2.Move the junction box to the left side of unit and attach the box to the sway brace.
3.Secure 24V yellow wires to sway brace panel with existing wire retainers.
4.Connect the wires inside the junction box, either 120V or 240V depending on the field wiring.
NOTE: 7/8" Dia. holes not utilized on jacket and control box can be used for fireman switch or auxiliary control interface wiring.
NOTE: Heater must be electrically grounded and bonded. Bonding lug is provided loose with the unit. Install bonding lug on lower right or left side of jacket as necessary for bonding the unit. Mounting hole is provided on the jacket.
Option Location For Left | Control Box |
Side Field Wiring | (Factory Mounted Location) |
Sway
Brace
Bonding Lug | Fig. # 9030.1 | Bonding Lug |
(Optional Location) |
| (Standard Location) |
ATMOSPHERIC
LOW NOx
The Electronic Intermittent Ignition Device automati- cally lights the pilot and main burners upon a call for the heat. The heater is supplied with a dual voltage trans- former for 120V or 240V input power hookup.
NOTE: IID Propane Units and IID Low NOx natural gas units only
Heater is equipped with an electronic ignition device with a 100% safety lockout feature. If the heater fails to start or lockout, reset the ignition device by interrupting the power to the heater for 60 seconds.
Caution: If service replacement of the electronic igni- tion device is required, replace only with a 100% safety lockout device with 90 second trial for pilot ignition.
HONEYWELL
IGNITION
CONTROL
Fig. # 8929.1
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