Operating instructions

Heatmax Furnace Installation and Operation Manual

electrical code » and in the United-States NFPA 70 standard « National Electrical Code »

must be followed.

Inspect the furnace to make sure that nothing has been damaged in the shipping. Pull out

the instruction manual from the firebox of the furnace and the accessories from the flue

pipe and/or exchangers.

 The blower speed must conform to the recommendations of the Warm Air Heating and

Air Conditioning National Association and should respect the static pressure ranges in

the warm air plenum of the furnace (see section 2.1.2, General technical data).

6.3 Connecting pipe, manual and barometric damper

WARNING:

DO NOT INSTALL A MANUAL DAMPER ON THIS FURNACE.

Here are some tips for proper installation:

The HEATMAX furnace must be connected to a factory built chimney as per UL 103 HT or

ULC S629 for wood heating appliances, we recommend that the connecting pipe and

chimney have a 6" inside diameter. The minimum draft required at all times is -0.04 in.

W.C. but the furnace will perform at its best with a draft of -0.06 in. W.C.

Slightly higher draft is acceptable and a barometric draft control is not normally required on

this unit but a barometric control must be installed to control excessive draft (more than -

0.08 in. W.C.).

If a barometric damper must be installed, it must be adjusted to the maximum draft

measured at the output of the furnace to -0.06 " W.C. Please note that a draft greater than

-0.08 in. W.C. could produce runaway (uncontrolled fire) of the furnace. The minimum draft

required is -0.04 " W.C. in the exhaust pipe.

All the exhaust pipe joints must be secured with three screws.

1. Make sure that each screw goes through the inner wall of both connectors (male and

female). See pictures below showing a male-female coupling.