ICP NAHA00601WK, Installation Instructions Manual

4

443 06 2403 01

Specifications  subject to change without notice.

A02224

Table 1 – Kit Contents

DESCRIPTION

PART NO.

QTY

Sealing tape

2

External extension harness

327962­701

1

Main twinning harness

327957­701

1

Secondary twinning harness

327959­701

1

Two­stage furnace wiring diagram

337068­101

1

Single stage furnace heat wiring
diagram

337070­101

1

Single stage furnace/two­stage
heat wiring diagram

337069­101

1

Label

327956­101

1

Tape

1

Bag Assembly includes:

  Snap bushing

2

  Screws (HEX HD 6B X ¾)

10

  Screws (flat head)

1

  Wire tie

4

  Clamps

2

  Installation Instructions

1

Auxiliary door switch bracket

1

NOTE

:  As a result of staged heating with single

−

speed

furnaces, the air temperature distribution in the supply plenum
may be uneven when only 1 furnace is heating.

NOTE

:  Refer to the Installation, Start

−

Up, and Operating

Instructions supplied with each furnace for information on
venting, clearances, start

−

up, maintenance, and other

information not covered in this publication.
See Table 1 for kit contents.

ELECTROSTATIC DISCHARGE (ESD) PRECAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit and

component damage.
Failure to follow this caution could result in unit and

component damage. Electrostatic discharge can affect

electronic components. Take precautions during furnace

installation and servicing to protect the furnace

electronic control. Precautions will prevent electrostatic

discharges from personnel and hand tools which are

held during the procedure. These precautions will help

to avoid exposing the control to electrostatic discharge

by putting the furnace, the control, and the person at the

same electrostatic potential.

CAUTION

!

1. Disconnect all power to the furnace. DO NOT TOUCH

THE CONTROL OR ANY WIRE CONNECTED TO THE

CONTROL PRIOR TO DISCHARGING YOUR BODY’S

ELECTROSTATIC CHARGE TO GROUND.

2. Firmly touch a clean, unpainted, metal surface of the

furnace chassis which is close to the control. Tools held

in a person’s hand during grounding will be satisfactorily

discharged.

3. After touching the chassis you may proceed to service

the control or connecting wires as long as you do

nothing that recharges your body with static electricity

(for example; DO NOT move or shuffle your feet, DO

NOT touch ungrounded objects, etc.).

4. If you touch ungrounded objects (recharge your body

with static electricity), firmly touch furnace again before

touching control or wires.

5. Use this procedure for installed and uninstalled

(ungrounded) furnaces.

6. Before removing a new control from its container,

discharge your body’s electrostatic charge to ground to

protect the control from damage. If the control is to be

installed in a furnace, follow items 1 through 5 before

bringing the control or yourself into contact with the

furnace. Put all used AND new controls into containers

before touching ungrounded objects.

7. An ESD service kit (available from commercial sources)

may also be used to prevent ESD damage.

SECTION I: MULTIPOISE SINGLE

−

SPEED AND

TWO

−

SPEED NON

−

CONDENSING HSI FURNACE

MODELS

SINGLE

−

STAGE

TWO

−

STAGE

N8MSN

F8MTL

N8MSL

G8MTL

NOTE

:  Throughout these instructions, when the furnace

installed side

−

by

−

side, the left

−

hand (LH) side will be referred

to as the LH furnace, and the furnace installed on the

right

−

hand (RH) side as the RH furnace. When the furnaces

are installed back

−

to

−

back, the left

−

hand (LH) side will be

referred to as the LH furnace, and the furnace installed on the

right

−

hand (RH) side as the RH furnace when viewed from the

side with the extension harness installed.