Single Stage Multi Position Furnace
Service Manual
53
440 08 2001 02
Manufacturers Number (Mfr No --
See Rating Plate
) ALL Models
Specifications (N9MP1)(A2)
N9MP1050B12
N9MP1075B12
N9MP1080F16
N9MP1100F14
N9MP1100J20
N9MP1125J20
General
Gas Type
Input (Btuh)
Output (Btuh)
Transformer Size (VA)
T’stat Heat Anticipator
Temp. Rise (
°
F)
Nat./ LP
50,000
45,500
40
.10
35--65
Nat./ LP
75,000
68,000
40
.10
40--70
Nat./ LP
80,000
72,000
40
.10
35--65
Nat./ LP
100,000
91,000
40
.10
40--70
Nat./ LP
100,000
96,500
40
.10
40--70
Nat./ LP
125,000
113,750
40
.10
40--70
Electrical (Volts/Hz/FLA)
115/60/9.8
115/60/8.9
115/60/9.0
115/60/9.0
115/60/10.5
115/60/11.2
Gas & Ignition
Gas Type
Nat.
L.P.
Nat.
L.P.
Nat.
L.P.
Nat.
L.P.
Nat.
L.P.
Nat.
L.P.
Gas Valve
Regulation Type
IgnitionType/Series
HW SV9541M
SNAP
HW HSP
HW SV9541M
SNAP
HW HSP
HW SV9541M
SNAP
HW HSP
HW SV9541M
SNAP
HW HSP
HW SV9541M
SNAP
HW HSP
HW SV9541M
SNAP
HW HSP
Manifold Press. (Inch’s WC)
Std. Main Orifices (No/Size)
Pilot Orifice Size
3.5
2/42
.018
10.0
2/54
.011
3.5
3/42
.018
10.0
3/54
.011
3.5
4/44
.018
10.0
4/55
.011
3.5
4/46
.018
10.0
4/54
.011
3.5
4/42
.018
10.0
4/54
.011
3.5
5/42
.018
10.0
5/54
.011
Fan Controls
Fan Control (Type)
Fan Control
On
(Timed--secs)
Off
HW ST9160
30
60,100,140,180
HW ST9160
30
60,100,140,180
HW ST9160
30
60,100,140,180
HW ST9160
30
60,100,140,180
HW ST9160
30
60,100,140,180
HW ST9160
30
60,100,140,180
Combustion
Flue Outlet Size (Inches)
Std. Outlet Temp (
°
5
¢
No Elbows
2
<140
2
<140
2
<140
3
<140
3
<140
3
<140
Blower Pressure
5
¢
No Elbows
(
²
WC)
Blower Pressure
40
¢
+5--90
°
DWV Elbows
(
²
WC)
Transition Bx
Pressure
5
¢
No Elbows
(
²
WC)
Transition Bx
Pressure 40
¢
+5--90
°
DWV Elbows
(
²
WC)
----
----
--2.6
--2.3
----
----
--2.6
--2.3
----
----
--2.6
--2.5
--1.8
--1.7
--2.6
--2.5
--1.8
--1.7
--2.6
--2.5
--1.8
--1.7
--2.6
--2.5
Limits & Controls
Rollout Switch (
°
F)
Limit Control Setting (
°
F)
300
240
300
210
300
230
300
230
300
220
300
190
Standard Pressure Sw. (Part No)
Blower Switch Pressure (Close)
(
²
WC)
Blower Switch Pressure (Open)
(
²
WC)
Transition Switch Pressure (Close)
(
²
WC)
Transition Switch Pressure (Open)
(
²
WC)
1013802
----
----
--2.2
--2.0
1013802
----
----
--2.2
--2.0
1013811
----
----
--1.8
--1.6
1013801
----
----
--2.3
--2.1
1013802
----
----
--2.2
--2.0
1013166
--1.3
--1.1
--1.8
--1.6
High Altitude Pressure Sw. (Part No)
Blower Switch Pressure (Close)
(
²
WC)
Blower Switch Pressure (Open)
(
²
WC)
Transition Switch Pressure (Close)
(
²
WC)
Transition Switch Pressure (Open)
(
²
WC)
1013803
----
----
--2.0
--1.8
1013803
----
----
--2.0
--1.8
1013812
----
----
--1.5
--1.3
1013803
----
----
--2.0
--1.8
1013803
----
----
--2.0
--1.8
1013157
--0.9
--0.7
--1.7
--1.5
Long Vent Kit (Part No)
Pressure Switch (Part No)
Blower Switch Pressure (Close)
(
²
WC)
Blower Switch Pressure (Open)
(
²
WC)
Transition Switch Pressure (Close)
(
²
WC)
Transition Switch Pressure (Open)
(
²
WC)
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
NAHA001LV
1013518
--1.0
--0.8
--2.0
--1.8
NAHA002LV
1013515
--1.0
--0.8
--1.7
--1.5
----
----
----
----
----
----
High Altitude Long Vent Kit (Part No)
Pressure Switch (Part No)
Blower Switch Pressure (Close)
(
²
WC)
Blower Switch Pressure (Open)
(
²
WC)
Transition Switch Pressure (Close)
(
²
WC)
Transition Switch Pressure (Open)
(
²
WC)
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
----
NAHA003LV
1013165
--0.7
--0.6
--1.4
--1.2
----
----
----
----
----
----
Blower Data
Type & Size
Motor Amps/Rpm
Motor Type/H.p.
Cap. Mfd/Volts
Filter Type
Cool Cap. (Tons) @ .5
²
W.C. L, ML, MHi & Hi
11--8
10/850
PSC/
1
/
2
7.5/370
16x25x1
1
1
/
2
,2,2
1
/
2
,3
11--8
8.0/1050
PSC/
1
/
2
7.5/370
16x25x1
1
1
/
2
,2,2
1
/
2
,3
11--10
10/1050
PSC/
1
/
2
10/370
16x25x1
2
1
/
2
,3,3
1
/
2
,4
11--10
10/1050
PSC/
1
/
2
10/370
16x25x1
1
1
/
2
,2,3,3
1
/
2
,
11--10
13/900
PSC/
3
/
4
40/370
16x25x1
3
1
/
2
,4,4
1
/
2
,5
11--10
13/900
PSC/
3
/
4
40/370
16x25x1
3
1
/
2
,4,4
1
/
2
,5
Gas Conversion Kits
Nat to LP
LP to Nat
*Order from Service Parts
NAHF002LP (*1009509)
NAHF002NG (*1009510)
NAHF003LP
(*1013815)
NAHF003NG
(*1013816)
NAHF002LP (*1009509)
NAHF002NG (*1009510)