I.C.E. GIDM-325 User Manual
1) FOR POWER VENTED UNITS: The flue draft should be adjusted at the damper of the induced
draft fan when the unit is operating on high fire. The overfire draft measured with a manometer at the
test port in the relief door should be minus 0.01 to minus 0.50 in W.C. as specified on the rating plate
of the unit.
2) FOR GRAVITY VENTED UNITS: The flue draft should be adjusted at the damper of the burner fan
when the unit is operating at high fire. The overfire draft measured with a manometer at the test port in
the relief door should be positive 0.01 to positive 1.0 in W.C. as specified on the rating plate.
NOTE: This unit has been examined and tested for compliance with CSA C22.2 No. 0 and CSA C22.2 No. 3.
All electrical work must conform to the requirements of the current CSA standard C22.1 Canadian Electric Code
Part 1 and local ordinances.
Control voltage is as indicated on the rating plate.
Follow the wiring diagram supplied with the unit. This type of unit is available with a variety of fuel control
schemes. Please ensure that you are using the correct wiring diagram for installation or trouble shooting.
If a space thermostat is used with the furnace, locate the thermostat so that cold drafts and hot discharge air streams
do not affect its performance. Do not mount the thermostat on the casing on the unit, as it will be affected by
radiated and conducted heat. Refer to the instructions furnished with the thermostat for further details.
If any of the original wire as supplied with the unit must be replaced, it must be replaced with type TEW 105 degrees
or its equivalent except where noted.
Temperature controllers, limit controllers, remote selector switches, door switches or any other auxiliary electrical
items must be connected to the terminals provided and shown on the wiring diagram.
For units shipped in two sections, electrical connections between sections are to be made by installer in the field.
Field wiring to be done by the installer is denoted by dotted lines on the wiring diagram. Solid lines on the wiring
diagram indicate factory wiring by the manufacturer.
NOTE: Because bolts and set screws may become loose during unit shipment, such fasteners should be tightened
WARNING: Fire or explosion hazard can cause property damage, severe injury, or death. Check for gas
leaks with rich soap and water solution any time work is done on a gas line. Never use an open
flame to detect gas leaks.
All gas piping should be in accordance with CAN/CSA/1-B149 and the regulations of local authorities having
jurisdiction. Emergency manual shut down valve should be provided upstream of piping to unit and should be
labeled for quick identification. Color coding of gas piping is also recommended.
Carefully check the unit rating plate for fuel type and supply pressure.
*Locate the high pressure regulator, if required, at least five feet from the unit.
*Gas lines must not be located in such a way as to hinder access to the unit