ISi North America AMV8 User Manual download pdf (Page 16)

1. Remove both doors from the furnace.

2. Remove and save the screws holding the junction box to

the left side of the furnace.

3. Models that have the junction box located in the blower

compartment will need to rotate the junction box 180

degrees. Models that have the junction box located in the

burner compartment will need to move the juction box

directly over.

4. Attach the junction box to the right side of the furnace,

using the screws removed in step 2.

5. Check the location wiring. Confirm that it will not be

damaged by heat from the burners or by the rotation of the

fan. Also confirm that wiring location will not interfere with

filter removal or other maintenance.

After the junction box is in the desired location, use washers to

connect field-supplied conduit to the junction box in accordance

with NEC and local codes. Connect hot, neutral, and ground

wires as shown in the furnace wiring diagram. The wires and

ground screw are located in the furnace junction box.

Low voltage wires may be connected to the terminal strip as

shown in Figure 12.

IMPORTANT NOTE: To avoid possible equipment malfunction,

route the low voltage wires to avoid interference with filter removal

or other maintenance.

Integrated Ignition Control

WARNING

O AVOID THE RISK OF INJURY, ELECTRICAL SHOCK OR DEATH, THE FURNACE

MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES OR,

IN THEIR ABSENCE, WITH THE LATEST EDITION OF THE

ATIONAL

LECTRIC

ODE.

To ensure proper unit grounding, the ground wire should run

from the furnace ground screw located inside the furnace junction

box all the way back to the electrical panel. NOTE: Do not use

gas piping as an electrical ground. To confirm proper unit

grounding, turn off the electrical power and perform the following

check.

1. Measure resistance between the neutral (white)

connection and one of the burners.

2. Resistance should measure 10 ohms or less.

This furnace is equipped with a blower door interlock switch

which interrupts unit voltage when the blower door is opened for

servicing. Do not defeat this switch.

24 VOLT T HERMOSTAT WIRING

NOTE: Wire routing must not interfere with circulator blower

operation, filter removal, or routine maintenance.

As a two-stage furnace, the furnace integrated control module

provides terminals for both “W1” and “W2”, and “YLO” and “Y”

thermostat connections. This allows the furnace to support the

following system applications: ‘Two-Stage Heating Only’, ‘Two-

Stage Heating with Single-Stage Cooling’, and ‘Two-Stage

Heating with Two-Stage Cooling’. Refer to the following figures

and table for proper connections to the integrated control module.

Low voltage connections can be made through either the right or

left side panel. Thermostat wiring entrance holes are located in

the blower compartment. The following figure shows connections

for a “heat only” system and “heat/cool system”.

This furnace is equipped with a 40 VA transformer to facilitate

use with most cooling equipment. Consult the wiring diagram,

located on the blower compartment door, for further details of

115 Volt and 24 Volt wiring.

SINGLE STAGE THERMOSTAT APPLICATION

Single-Stage Heating with Single-Stage Cooling

B/C G R W1 W2O

YLO

DEHUM

TWIN

Y C

NEU

HOT

Furnace Integrated

Control Module

Thermostat

Single-Stage Heating with

Single-Stage Cooling

()

Remote

Condensing Unit

(Single-Stage Cooling)

Dehumidistat

[Optional]

NOTE:

To apply a single-stage heating thermostat, the

thermostat selector jumper on the integrated Control

module must be set on single stage.

Two-Stage Heating with Single-Stage Cooling

B/C G R W1 W2O

YLO

DEHUM

TWIN

Y C

NEU

HOT

Furnace Integrated

Control Module

Thermostat

Two-Stage Heating

with

Single-Stage Cooling

()

Remote

Condensing Unit

(Single-Stage Cooling)

Dehumidistat

[Optional]

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 35 36

Comments to this Manuals

No comments

ISi North America AMV8 User Manual Page 16

Comments to this Manuals