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Table of Contents
- 1 Table of Contents
- 2 Installation
- 3 Return Air Illustrations
- 4 Furnace Specifications (SF, SFV, SH, and SHD-2542 Model Furnaces)
- 5 Sequence of Operation (Time Delay Relay Equipped Furnaces)
- 6 Sequence of Operation (24 VAC Fan Control Module Board (520947)
- 7 Sequence of Operation (SHD-2542 Furance)
- 8 Furnace Removal
- 9 SF, SH and SHD-2542 Electrode Gap Specifications & Positioning
- 10 Maintenance
- 11 Cautions & Safety Information
- Download this manual
Suburban
RV FURNACES
SERVICE MANUAL
DD-17DSI • DD-17DSIW
NT-12S/SE • NT-16S/SE • NT-20S/SE
NT-24SP • NT-30SP • NT-34SP
NT-40
P-30S/40
SF-20 • SF-25 • SF-30 • SF-35 • SF-42
SF-20F • SF-25F • SF-30F • SF-35F • SF-42F
SH-35 • SH-42
SH-35F • SH-42F
SHD-2542
SFV-35 • SFV-42
SFV-35F • SFV-42F
SUBURBAN MANUFACTURING COMPANY
676
Broadway Street
Dayton, Tennessee 37321
423-775-2131
Fax: 423-775-7015
www.rvcomfort.co m
info1@suburbanmfg.com
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Table of Contents
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Summarization of Contents
INSTALLATION
Selecting a Location
Choose a location for installation out of the way of wires, pipes, etc.
Venting
Must be vented to the outside atmosphere and draw combustion air from outdoors.
Return Air
Ensure return air louvers on the furnace cabinet opening are not obstructed.
Ducting
Maintain a minimum duct area throughout the entire duct system.
SEQUENCE OF OPERATION
Furnaces Equipped With Time Delay
Describes the operating circuit to the furnace by reacting to room temperature.
Fan Control Module Board (520820) Operation
Details the sequence of events for fan control module board operation.
24 VAC Fan Control Module Board (520947) Operation
Details the sequence of events for 24 VAC fan control module board operation.
SHD-2542 Dual Stage Operation
Details the operation of the dual stage furnace for SHD-2542 models.
TROUBLESHOOTING GUIDE (Time Delay)
12 VDC Heating Section Troubleshooting
Troubleshooting steps for 12 VDC heating section with time delay.
TROUBLESHOOTING GUIDE (Fan Control)
Fan Control Module Boards (12 VDC) Troubleshooting
Troubleshooting for fan control module boards in 12 VDC heating.
FURNACE REMOVAL PROCEDURES
DD-17DSI Removal
Steps for removing the DD-17DSI furnace model.
NT-12/16/20S/SE Removal
Steps for removing NT-12/16/20S and SE furnace models.
NT-24/30/34SP & NT-40 Removal
Steps for removing NT-24/30/34SP and NT-40 models.
SF/SFV/SH/SHD-2542 Removal
Steps for removing SF, SFV, SH, and SHD-2542 models.
SF/SFV/SH-42F & P-30S/P-40 Removal
Steps for removing SF/SFV/SH-42F and P-30S/P-40 models.
ELECTRODE GAP SPECIFICATIONS
SF, SH, SHD-2542 Electrode Positioning
Details electrode positioning for SF, SH, SHD-2542 models.
NT Electrode Gap & Positioning
Details electrode gap specifications and positioning for NT models.
Park Model Electrode Gap & Positioning
Details electrode gap specifications and positioning for Park Models.
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