Sterling QVSD Manuale Utente

INSTALLATION INSTRUCTIONS AND SERVICE MANUALSEPARATED COMBUSTIONGAS-FIRED INDOOR DUCT FURNACESCDFM-5J30-0539303/13FOR YOUR SAFETYThe use and storage o

10Figure 6 - Standard Wiring Diagram for Unit with Honeywell Ignition System.

11Figure 7 - Standard Wiring Diagram for Unit with Johnson Ignition System

12FAN TIME DELAY CONTROL (OPTIONAL)Leads from the fan time delay control are factory wired to the junction box (when ordered as an optional component)

13INSTALLATION (Continued)5. Long runs of single wall combustion air piping passing through an unheated space may require insulating if conden

14INSTALLATION (Continued)Vent Systems Termination Clearance RequirementsStructure/ObjectMinimum Clearance for Termination LocationsUSA CANADADoor, wi

15CAT-2766BCAT-2767BCAT-2765BFigure 8A. Horizontal Intake/Vent LocationsFigure 9. Vertical Vent InstallationFigure 9A. Horizontal Vent Installation

16GAS PIPINGNOTICE: See General Safety Information section for English/Metric unit conversion factors.NOTICE: If more than one duct furnace is to be s

17PIPE INSTALLATION1. Install the gas piping in accordance with applicable local codes.2. Check gas supply pressure. Each duct furnace must be conne

18PIPE INSTALLATION (Continued)Table 7 - Gas Supply Pressure RequirementsHeating Value Natural Gas Propane Gas1075 Btu/Ft3 2500 Btu/Ft3(40.1 MJ/m3) (

19Table 8 - Main Burner Orifi ce Schedule*PILOT ADJUSTMENT1. Remove the PILOT ADJUSTMENT CAP.2. Adjust the pilot screw to provide a properly sized

2TABLE OF CONTENTSGENERAL SAFETY INFORMATION SEPARATED COMBUSTION DUCT FURNACE ...1,2,3 SPECIFICATIONS ...

2012OFF8AON8B1011712SPARK1MV2MV/PV34GND(BURNER)PV5678924V(GND)24VTH-W(OPT.)HoneywellWARNINGS8600MCONTINUOUS RE-TRY100% SHUTOFF IP90 SEC. TRIAL FOR IGN

21OPERATION Never operate the unit beyond the specified limits or severe damage to, and/or premature failure of, the unit will result!EXPLANATION OF C

222. Turn off the manual gas valve and electrical power to the duct furnace.3. To clean or replace the main burners, open the bottom panel and compr

23Figure 15 - Power Venter AssemblyRef.No. Description 1 Blower Housing Assembly 2 Speed Nut 3 Motor 4 Washer, Plain 5 Plate Adapter 6 Blo

24 1. Pressure regulator set too high. 2. Defective regulator. 3. Burner orifi ce too large. 1. Excessive primary air. 2. Burner orifi ce too sm

25 1. Close air shutter. Refer to “Operation”. 2. Clean main burner ports. 3. Reset manifold pressure. Refer to “Operation”.

26Table 9 - Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION 1. Loose wire connections at gas valve or thermostat.

27Table 9 - Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION 1. Loose wiring. 2. Defective motor overload protector

28Table 9 - Troubleshooting Guide SYMPTOMS POSSIBLE CAUSE(S) CORRECTIVE ACTION 1. Incorrect manifold pressure or input. 2. Voltage to

29HOW TO ORDER REPLACEMENT PARTSPlease send the following information to your local representative; If further assistance is needed, contact the manuf

3GENERAL SAFETY INFORMATIONUse only the fuel for which the duct furnace is designed (see rating plate). Using LP gas in a heater that requires natural

30SEPARATED COMBUSTION INDOOR DUCT FURNACEUNIT NUMBER DESCRIPTIONDigit #1, 2 - Unit Type [UT]D6 - Separated Combustion Duct FurnaceDigit #3, 4, 5 - Ca

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Customer ____________________________________ Job Name & Number _________________________PRE-INSPECTION INFORMATIONWith power and gas off.Type

4Table 1 A B C D (Dia)*† Gas Inlet Weight Unit inches inches inches inches inches lb. Size (mm) (mm) (mm) (mm) Nat LP (kg) 100

5PERFORMANCE DATATable 2 Input Output MAX MIN MIN Temp. Rise PD MAX Temp Rise PD Unit MBH MBH MBH CFM °F in. of WC CFM °F in. of WC Size (kW

6CLEARANCES Under no circumstances should combustible material be located within the clearances specifi ed in Table 3. Failure to provide proper clear

7If uniform air distribution is not obtained, install additional baffl es and/or turning vanes in the ductwork.Access panels large enough to observe sm

8INSTALLATION (Continued)MAKE CERTAIN THAT THE STRUCTURE TO WHICH THE FURNACE IS TO BE MOUNTED IS CAPABLE OF SAFELY SUPPORTING ITS WEIGHT. UNDER NO CI

9INSTALLATION (Continued)THERMOSTAT WIRING AND LOCATIONNOTICE: The thermostat must be mounted on a vertical, vibration-free surface, free from air cur