Suburban SFV-30 Installation guide

SUBURBAN
RV FURNACE
SERVICE & TRAINING
MANUAL

TABLE OF CONTENTS
PAGE
Furnace Introduction / Model & Serial Number Information ............................................................... 3
General Service Information / Cautions & Safety Information............................................................ 4
............................................................................................................... 5
Furnace Removal ............................................................................................................................... 6
Installation Information ....................................................................................................................... 8
Vent Assembly Installation.................................................................................................................. 9
Return Air & Ducting Information...................................................................................................... 19
Return Air & Ducting Requirements.................................................................................................. 20
Electrical Supply Information............................................................................................................ 23
 ................................................................................................................... 24
Sequence of Operation (12 VDC 520820 Fan Control Module Board) ............................................ 26
Sequence of Operation (24 VAC 520947 Fan Control Module Board)............................................. 27
Sequence of Operation (SHD-2542 Furnace) .................................................................................. 28
Sequence of Operation (Time Delay Relay Equipped Furnaces)..................................................... 29
 ...................................... 30
 ........................ 31
....................... 32
Furnace Wiring Diagrams................................................................................................................. 34
 ................................................ 37
 ........................................................................... 38
Maintenance..................................................................................................................................... 39

3
FURNACE INTRODUCTION













                 

address: [email protected]
MODEL & SERIAL NUMBER INFORMATION


MODEL NO. / NUMÉRO DE MODÉLE
SF-35F
SERIAL NO./ NUMÉRO DE SÉRIE
093102771
STOCK NO. 2332
INPUT BTU/HR. 35,000 @
DEBIT 10.0” W.C.
CALORIFIQUE
OUTPUT BTU/HR. 27,300
CLARIFIQUE
MANIFOLD PRESSURE 10.0” W.C.
PRESSION TUBULURE
ORIFICE SIZE #51
DIMENSION DE L’INJECTEUR
TYPE OF GAS LP
ESPECE DE GAZ
MODEL BREAKDOWN
SF-35F
Suburban Furnace
35,000 BTU
Front Gas
SERIAL # BREAKDOWN
093102771
Year of MFG (2009)
  
Sequential SR#(02771)

4
GENERAL SERVICE INFORMATION
GAS SUPPLY PRESSURE REQUIREMENTS
 
  
*WC - water column
VOLTAGE REQUIREMENTS
VOLTAGE DC:
  
   
SERVICE TOOLS REQUIRED
Manometer gauge/ U-Tube
 
Module board tester #641511
 
 
 
Safety glasses
CAUTIONS & SAFETY INFORMATION
 

             

                
operation.
 
electrode assembly on remote sense units.
 
 
 
 
 
 
obstructed.
             
requirements.
 
model furnace.
 

5
SUBURBAN RV FURNACES
SPEC SHEET BTU/h
INPUT Height Width Depth Ignition Shipping Weight
12 VDC DIRECT DISCHARGE
NT-16SE 16,000    Electronic 27
NT-20SE 19,000    Electronic 27
12 VDC DUCTED FURNACES
NT-16S 16,000    Electronic 27
NT-20S 19,000    Electronic 27
 30,000    Electronic 40
 34,000    Electronic 40
NT-40 40,000    Electronic 42
SF-20/20F 20,000    Electronic 35
SF-25/25F 25,000    Electronic 35
SF-30/30F 30,000    Electronic 35
SF-35/35F 35,000    Electronic 35
SF-42/42F 40,000    Electronic 35
SH-35/35F 35,000    Electronic 40
SH-42/42F 40,000    Electronic 42
SF-20Q/20FQ 20,000    Electronic 35
SF-25Q/25FQ 25,000    Electronic 35
SF-30Q/30FQ 30,000    Electronic 35
SF-35Q/35FQ 35,000    Electronic 35
SF-42Q/42FQ 40,000    Electronic 35
SH-35Q/35FQ 35,000    Electronic 40
SH-42Q/42FQ 40,000    Electronic 42
Accessories Description
6258ACW 
 
6267ACW 
SFV-20 20,000    Electronic 35
SFV-25 25,000    Electronic 35
SFV-30 30,000    Electronic 35
SFV-35 35,000    Electronic 35
SFV-42 40,000    Electronic 35
SHD-2542 25/40,000    Electronic 44
120 VAC PARK MODEL FURNACES
 40,000    Electronic 46
Accessories Description
050733 Duct Cover
050715 
051240 
280552 
062164 
070853 
520009 
520576 
520753 
520864 

6
FURNACE REMOVAL
SUBURBAN family of RV 
steps:
DD-17DSI
1. 
2. 
3. 
4. 
5. Remove duct from side of furnace, if equipped.
6. 
7. 
8. 
9. 
NT-12/16/20S
1. 
2. 
3. 
4. 
5.  
applicable parts.
6. 
7. 
NT-12/16/20SE
1. 
2. 
3. 
4. 
5.  
applicable parts.
6. 
7. 
NT-24/30/34SP and NT-40
1. 
2. 
NT-40.
3. 
4. 
5.  
applicable parts.
6. 
7. 

7
FURNACE REMOVAL
SF-20/25/30/35/42, SF-20Q/25Q/30Q/35Q/42Q, SFV-20/25/30/35/42,
SH-35/42 and SHD-2542
1.        

2. 
3. 
4.  
applicable parts.
5. 
6. 
SF-20/25/30/35/42F, SF-20FQ/25FQ/30FQ/35FQ/42FQ,
SFV-20/25/30/35/42F and SH-35/42F
1. 
2. 
3. 
4. 
5.  
applicable parts.
6. 
7. 
NOTE: ON SFV MODELS, REMOVE EXTRA SCREWS FOR CHAMBER REMOVAL.
P-30S and P-40
1. 
2. 
 
3. 
4. 
5.  
applicable parts.
6. 
7. 

8
INSTALLATION INFORMATION


1. Selecting a Location
2. Venting
3. Return Air
4. Ducting
5. Electrical Supply

Location and Installation




Figure 1

9
VENT ASSEMBLY INSTALLATION
VENTING



a minimum
of 1/2” on intake, and 1 1/4” on exhaust.

CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO
PREVENT MOISTURE INSIDE FURNACE
COMPARTMENT. APPLY CAULKING GENEROUSLY
AROUND PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY STRIP IS
ESSENTIAL.
OUTSIDE SKIN (PANEL)
TUBE, INTAKE AIR
WITH GASKET
VENT CAP AND
EXHAUST
DETAIL "A"
2" MAXIMUM WALL THICKNESS
TUBE, AIR INTAKE
WITH GASKET
VENT CAP AND
EXHAUST TUBE
SEE DETAIL "A"
OUTSIDE SKIN (PANEL)
REMOVABLE PANEL OF
COACH WALL MUST
SEAL WATER TIGHT
FURNACE CABINET
FRONT
ELECTRICAL
CONNECTION
GAS CONNECTION
INSIDE WALL
(2) 2 1/4"
DIA. HOLES
Figure 2 • SF & SFQ MODELS
17 3"
4
87"
8
613"
16
313"
16
33"
8
2" MAXIMUM WALL THICKNESS
TUBE, AIR INTAKE
WITH GASKET
VENT CAP AND
EXHAUST TUBE
SEE DETAIL "A"
OUTSIDE SKIN (PANEL)
REMOVABLE PANEL OF
COACH WALL MUST
SEAL WATER TIGHT
FURNACE CABINET
FRONT
ELECTRICAL
CONNECTION
GAS CONNECTION
INSIDE WALL
(2) 2 1/4"
DIA. HOLES
C
L
94
3"
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO
PREVENT MOISTURE INSIDE FURNACE
COMPARTMENT. APPLY CAULKING GENEROUSLY
AROUND PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY STRIP IS
ESSENTIAL.
DETAIL "A"
VENT CAP AND
EXHAUST
TUBE, INTAKE AIR
WITH GASKET
OUTSIDE SKIN (PANEL)
Figure 2A • SH MODELS

10
Figure 3 • SF & SFQ MODELS
Figure 3A • SH & SHD-2542 MODELS
VENT ASSEMBLY INSTALLATION
2" MAX.
C
L
97
64
18 32
7
89
32
FURNACE
TIE-DOWN SCREW
(FURNACE TO CABINET)
OUTSIDE SKIN
CAULK ALONG THE EDGE OF THE CUTOUT
(ALL THE WAY AROUND)
ANCHOR FURNACE CABINET TO COACH
FLOOR (2) PLACES AS ILLUSTRATED
BACK OF CABINET MUST BUTT
AGAINST THIS EDGE OF THE FRAME
DOOR FRAME
AIR INTAKE TUBE
WITH GASKET
6 SCREWS
(SUPPLIED)
VENT CAP & EXHAUST TUBE
4 SCREWS
DOOR MOUNTING
FURNACE ACCESS DOOR
SECURE FRAME TO
OUTER PANEL WITH SCREWS
(16 PLACES)
GAS
CONNECTION
ELECTRICAL
CONNECTION
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO PREVENT
MOISTURE INSIDE FURNACE COMPARTMENT. APPLY
CAULKING GENEROUSLY AROUND PERIMETER OF
VENT CAP AND ACROSS CENTER AS SHOWN. CENTER
PUTTY STRIP IS ESSENTIAL.
2" MAX.
C
L
97
64
18 32
7
10 1
32
FURNACE
TIE-DOWN SCREW
(FURNACE TO CABINET)
OUTSIDE SKIN
CAULK ALONG THE EDGE OF THE CUTOUT
(ALL THE WAY AROUND)
ANCHOR FURNACE CABINET TO COACH
FLOOR (2) PLACES AS ILLUSTRATED
BACK OF CABINET MUST BUTT
AGAINST THIS EDGE OF THE FRAME
DOOR FRAME
AIR INTAKE TUBE
WITH GASKET
6 SCREWS
(SUPPLIED)
VENT CAP & EXHAUST TUBE
4 SCREWS
DOOR MOUNTING
FURNACE ACCESS DOOR
SECURE FRAME TO
OUTER PANEL WITH SCREWS
(16 PLACES)
GAS
CONNECTION
ELECTRICAL
CONNECTION
CAULK BEHIND VENT CAP AS SHOWN TO SEAL
BETWEEN EXHAUST AND INTAKE AND TO PREVENT
MOISTURE INSIDE FURNACE COMPARTMENT. APPLY
CAULKING GENEROUSLY AROUND PERIMETER OF
VENT CAP AND ACROSS CENTER AS SHOWN. CENTER
PUTTY STRIP IS ESSENTIAL.