Sterling RT - Manual (Page 2)

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TABLE OF CONTENTS
RECEIVING/PRE-INSTALLATION
INSTRUCTIONS ......................................................2
GENERAL SAFETY INFORMATION ....................2, 3
SPECIFICATIONS
Dimensional Data ..........................................4, 5
Performance and Specifi cation Data .................5
Performance Data Curves .............................6, 7
INSTALLATION
Location/Mounting .....................................2, 3, 8
Clearances ................................................4, 5, 8
Venting ..............................................................9
Duct and Drain Specifi cations .........................10
Gas Connections .................................10, 11, 12
Electrical Connections .....................................12
OPERATION
General Information...................................13, 14
Intermittent Pilot Ignition Parts ........................13
Controls ...........................................................14
Gas Controls ...................................................15
Air Distribution/Throughput .............................16
Lighting ......................................................17, 18
Primary Air Shutter/Pilot Adjustment ...............18
Gas Input Adjustment ......................................18
START-UP ...............................................................19
MAINTENANCE ...............................................20, 21
TROUBLESHOOTING GUIDE ..........................22-25
REPLACEMENT PARTS ........................................26
WARRANTY ...........................................................26
GAS EQUIPMENT CHECK SHEET .......................28
The following terms are used throughout this manual to
bring attention to the presence of potential hazards or
to important information concerning the product:
Indicates an imminently hazard-
ous situation which, if not avoided, will result
in death, serious injury or substantial property
damage.
Indicates an imminently hazard-
ous 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.
SERVICE ACCESS PANEL REMOVAL
To remove an access panel door, use the following
procedure: remove the two screws and two washers
from the louvered flue discharge area of the service
panel (power vent doors only). Each panel is held
in place with two “Grip” Latches. Using a slotted
head screw driver, turn the latch screwhead counter
clockwise. Using the handle provided, pull the panel
upwards. Pull the bottom of the panel out and lower
the panel to disengage it from the top lip. To replace
an access door panel, guide the panel door upwards
on the tracks, and push up into the top lip; swing and
lower the panel in place until it engages with the bottom
panel. Turn the screwhead on each latch clockwise.
The screw must turn freely one quarter turn before
resistance is felt in order for the lock to engage. If the
latch does not hold, turn the screw counter-clockwise
several turns and repeat the above procedure. Also
refer to Figures 8a, 8b and 8c for more specifi cations.
RECEIVING INSTRUCTIONS
Inspect shipment immediately when received to
determine if any damage has occurred to the carton/
crate during shipment.
After the unit has been uncrated, check for any visible
damage to the unit. On power vented units, check
motor position and tur n blower wheel by hand to
determine if damage has occurred to these critical
parts.
If any damage is found, the consignee should sign the
bill of lading indicating such damage and immediately
fi le claim for damage with the transportation company.
PRE-INSTALLATION INSTRUCTIONS
When unit is received and uncrated check data plate
on unit for type of gas and electrical specifi cations and
make certain that these agree with those at point of
installation.
Open all disconnect switches
and secure in that position before installing
the unit. Failure to do so may result in personal
injury or death from electrical shock.
NOTICE: It is the equipment owner’s responsibility
to provide any scaffolding or other apparatus
required to perform emergency service or annual/
periodic maintenance to this equipment.
RIGGING
Rig the unit using either belt or cable slings. Use spreader
bar to protect the top of the unit when it is lifted.
The furnace units are provided with two holes in the
base rail on each side of the unit. Slide pipes beneath the
unit through these holes and attach rigging to the pipes
for lifting the unit.
LOCATION
Before placing the rooftop unit in its permanent location,
make certain that the roof is capable of carrying the
additional load of this equipment. Check the shipping
weights given in Chart 2.
Refer to Figures 1, 2 and 6 and char ts 1 and 2 for
adequate unit dimensions and required clearances.
MOUNTING
The units are mounted on skids and are suitable for use
on combustible fl ooring. It is recommended that the skids
be mounted either on level solid planking or steel
channels, but never on a soft tar roof where the skids
could sink and reduce the clearance between the bottom
panel and the roof.