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ICP N9MP1 Service Manual
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MUL
TI
POSITION
SINGLE
ST
AGE
GAS
FURNACES
Part
Number
440
08
2001
02
N9MP1,
N9MP2
&
*9MPD
“A1
&
A2”
Manufactur
ed
by:
This
manual
supports
condensing
gas
furnaces
manufactured
in
2001
ã
2001
International
Comfort
Products
Corporation
(USA)
4/2002
2
Table of Contents
Table of Contents
3
Introduction
4
Unit Identification
4
Furnace Theory of Operation
5
Electrical Supply
6
Interlock Switch
7
Gas Supply
7
Burners
9
Pressure Switch
9
High Altitude Operation
9
Checking Temperature Rise
10
Room Thermostats
10
Control Wiring
11
Twinning Kits
12
Limit Switches
12
Pressure Switches
14
Vent/Combustion Air Piping
16
Standard Vent Termination
16
Concentric Vent Termination
18
Exhaust Blower
19
Condensate Drain Trap
19
Honeywell St9160B Fan Timer/Furnace Control
20
St9160B Testing Sequence
21
St9160B - Unique Control Functions/Responses
21
Honeywell Sv9541M Gas Valve/Ignition System
22
Honeywell Sv9541M System Operation
22
Checking Flame Current
23
Capacitors
23
Blower Assembly
24
Blower Rotation
25
Heat Exchanger Removal/Replacement
46
SV9541M "SMART VALVE" -- Sequence of Operation
47
SV9541M "SMART VALVE" -- Trouble Shooting
49
SV9541M "SMART VALVE" -- Electrical Variation
51
Wiring Diagram
52
Specifications
54
TECHNICAL SERVICE DATA (N9MP1 or 2)
54
Technical Service Data (*9Mpd/A1)
56
Technical Service Data (*9Mpd/A2)
57
BLOWER PERFORMANCE DATA (N9MP1 or 2 & *9MPD)
58
Appendix Of Helpful Information
59
Other manuals for ICP N9MP1
Installation Instructions
62 pages
Installation Insrtuctions
14 pages
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ICP N9MP1 Specifications
General
Stages
Single Stage
Blower Motor
Multi-Speed
Cabinet
Heavy-Gauge Steel
Heat Exchanger Material
Aluminized Steel
Fuel Type
Natural Gas
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