Sterling QVES - Manual (Page 2)

2
MODEL TYPE DESIGNATION
Figure 1 = Power Vented Duct Furnace (Bottom Access, Rear Vent Position, Intermittent Pilot Ignition)
Figure 2 = Side Service Power Vented Duct Furnace (Side Access, Rear Vent Position, Intermittent Pilot Ignition)
TABLE OF CONTENTS
GENERAL SAFETY INFORMATION ................................................................................................................... 2, 3
DUCT FURNACES (POWER VENTED)
SPECIFICATIONS
....................................................................................................................................... 4
PERFORMANCE DATA ............................................................................................................................... 5
INSTALLATION
Location,
Clearances ...................................................................................................................... 6
Ductwork, Air Flow, Ventilation, Bypass .......................................................................................... 7
Suspension ..................................................................................................................................... 8
Electrical Connections .................................................................................................................... 9
Venting ..............................................................................................................................10 thru 15
Gas Piping .................................................................................................................................... 16
Pipe Installation ............................................................................................................................ 17
OPERATION
Power Vented Units with Intermittent Pilot ........................................................................18 thru 20
Orifi ce Sizing ................................................................................................................................ 20
Adjustments ............................................................................................................................ 20, 21
MAINTENANCE ........................................................................................................................................ 21
COMPONENT PARTS ................................................................................................................... 22, 23, 24
TROUBLESHOOTING CHART ..................................................................................................................25 thru 28
REPLACEMENT PARTS ........................................................................................................................................ 29
WARRANTY ........................................................................................................................................................... 29
UNIT NUMBER DESCRIPTION ............................................................................................................................. 30
START-UP/INSPECTION SHEET .......................................................................................................................... 32
GENERAL SAFETY INFORMATION
The duct furnace design is certified by ETL for use
with natural and LP (propane) gases. ANSI and
NFPA Standards as well as Canadian installation
codes referred to in this manual are the ones that
were applicable at the time the design was certified.
In addition, the duct furnace may be installed on the
downstream side of a cooling unit, without need of a
bypass duct.
If the unit is to be installed at an altitude exceeding
2,000 feet (610m) above sea level, derate the input by
4% for each 1,000 foot (305m) rise above sea level.
Special orifices are required for installations above
2,000 feet (610m).
When units are installed in Canada, any reference to
derations at altitudes in excess of 2000 feet (610m) are
to be ignored. At altitudes of 2000 to 4500 feet (610 to
1372m), the units must be orifi ced to 90% of the normal
altitude rating, and be so marked in accordance with
ETL certifi cation.
The following terms are used throughout this manual, in
addition to ETL requirements, to bring attention to the
presence of potential hazards or to important information
concerning the product:
Indicates an imminently hazardous
situation which, if not avoided, will result in death,
serious injury or substantial property damage.
Indicates an imminently hazardous
situation which, if not avoided, could result in
death, serious injury or substantial property
damage.
Indicates an imminently hazardous
situation which, if not avoided, may result in minor
injury or property damage.
NOTICE: Used to notify of special instructions on
installation, operation or maintenance which are
important to equipment but not related to personal
injury hazards.