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NORMAL MAINTENANCE

CAUTION: Prior to any of the following maintenance proce-

dures, shut off all power to the unit, to avoid per-
sonal injury.

Periodic maintenance consists of changing or cleaning filters
and lubricating the venter motor. Under some conditions, the
main burners should be cleaned.

FILTERS - Inspect once a month. Replace Disposable or clean
Permanent Type as necessary. DO NOT replace Permanent
Type with Disposable.

MOTORS - Indoor and outdoor fan motors are permanently
lubricated and require no maintenance. Venter motor is factory
lubricated for an estimated 10 year life. Motor may be oiled
annually using 6 drops of Anderaol 402 to extend its life.

CAUTION: DO NOT over-lubricate venter motor.

OUTDOOR COIL - Dirt should not be allowed to accumulate
on the outdoor coil surface or other parts in the air circuit.
Cleaning should be as often as necessary to keep the coil
clean. Use a brush, vacuum cleaner attachment, or other
suitable means. If water is used to clean the coil, be sure that
the power to the unit is shut off prior to cleaning.

NOTE: Exercise care when cleaning the coil so that the coil

fins are not damaged.

Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.

BURNER - At the beginning of each heating season, make a
visual check of the main burner flame. If it is not possible to
adjust for the proper flame, the burners may need cleaning.

TO CLEAN BURNERS - Remove them from the furnace as
explained in “Burner Instructions”. Clean burners with hot
water applied along top of the burner.

COMBUSTION AIR DISCHARGE - Visually inspect discharge
outlet periodically to insure soot and dirt buildup is not exces-
sive. If necessary, clean to maintain adequate combustion air
discharge.

The manufacture recommends that the furnace system be
inspected once a year by a qualified service person.

CLEANING FLUE PASSAGES AND HEATING ELEMENTS

With proper combustion adjustment the heating element of a
gas fired furnace will seldom need cleaning. If the element
should become sooted, it can be cleaned as follows:

1. Remove the burner assembly as outlined in “BURNER

INSTRUCTIONS”.

2. Remove the screws holding the flue collector box.

3. Unscrew and lift out the flue baffles.

4. Using a wire brush on a flexible wand, brush out the inside

of each heat exchanger from the burner inlet and flue outlet
ends.

5. Brush out the inside of the flue collector box and the flue

baffles.

6. If soot build-up is particularly bad, remove the vent motor

and clean the wheel and housing.

7. After brushing is complete, blow all brushed areas with air

or nitrogen. Vacuum as needed.

8. Replace parts in the order they were removed in steps 1

thru 3.

MAINTENANCE

530.44-N5Y

Unitary Products Group

11

Summary of Contents for STELLAR 2000 D3GH018

Page 1: ...AGE AIR CONDITIONERS GAS ELECTRIC AIR COOLED Supersedes 530 44 N5Y 893 530 44 N5Y 1294 MODELS D3GH018 THRU 036 12 SEER 035 12491 INSTALLATION INSTRUCTION Installer should pay particular attention to the words NOTE CAUTION and WARNING Notes are intended to clarify or make the installation easier Cautions are given to prevent equipment damage Warnings are given to alert installer that personal injur...

Page 2: ...n 6 Flue Vent Hoods 6 SEQUENCE OF OPERATION Heating 8 Cooling 8 START UP Pre start Check List 8 Operating Instructions 9 To Turn Off Gas To Unit 9 Post Start Check List 9 Manifold Gas Pressure Adjustment 9 Burner Instructions 9 Hot Surface Ignitor Instructions 10 Remote Sensor Instructions 10 Adjustment of Temperature Rise 10 Checking Gas Input 10 Secure Owner s Approval 10 MAINTENANCE Normal Main...

Page 3: ...remove any packaging until the unit is near the place of installation Rig unit with slings placed under the unit Spreader bars of suffi cient length should be used across the top of the unit BEFORE LIFTING A UNIT MAKE SURE THAT ITS WEIGHT IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT WILL LIFT EVENLY Units may also be moved or lifted with a fork lift Slotted openings in the skid are provided for...

Page 4: ... be electrically grounded in accordance with local codes or in their absence with the N E C C E C Voltage tolerances which must be maintained at the compressor termi nals during starting and running conditions are indicated on the unit Rating Plate and Table 7 Thewiring entering the cabinetmust be provided with mechani cal strain relief A fused disconnect switch should be field provided for the un...

Page 5: ...such as Gaskolac or Stalastic and compounds such as Rectorseal 5 Clyde s or John Crane may be used Input Capacity Mbh Output Capacity Mbh Available On Models Gas Rate1 Ft 3 Hr Temp Rise F At Full Input2 Min Max 36 28 11 2 2 TON 37 15 45 36 28 21 2 TON 37 15 45 54 42 2 TON 56 20 50 54 42 21 2 TON 56 25 55 54 42 3 TON 56 20 50 75 60 21 2 3 TON 74 25 55 75 60 31 2 TON 74 25 55 90 70 3 31 2 TON 93 25 ...

Page 6: ...he flue vent hood is installed by inserting the top flange of the hood into the slotted opening in the access panel positioning the vent screen between the hood flanges and the access panel and securing in place using 2 screws FIG 4 FLUE VENT HOOD MODELS D3GH 018 024 030 036 EVAPORATOR BLOWER CENTRIFUGAL BLOWER Dia x Wd in 9 x 6 10 x 8 10 x 8 10 x 10 FAN MOTOR HP THREE SPEED 1 3 1 3 1 3 1 2 EVAPOR...

Page 7: ...673 4 301 2 OVERALL GAS CONTROL SERVICE ACCESS COMPARTMENT PANEL 287 8 BLOWER SERVICE ACCESS COMPARTMENT PANEL 9 9 2 1 Units may be installed on combustible floors made from wood or class A B or C roof covering material 2 Units must be installed outdoors Overhanging structures or shrubs should not obstruct condenser air discharge outlet 3 32 maximum horizontal extension overhang NOTE A 1 clearance...

Page 8: ...E If the flame is neither sensed nor established at first attempt the control will attempt 11 more trials before entering into a lockout If the flame is sensed the blower on delay period begins The flame failure response is reset between more than 0 5 seconds and less than or equal to 0 8 seconds 10 seconds after initial flame sense If the flame is established after the completion of on delay time...

Page 9: ...T START CHECK LIST GAS After the entire control circuit has been energized and the heating section is operating make the following checks 1 Check for gas leaks in the unit piping as well as the supply piping 2 Check for correct manifold gas pressures See Checking Gas Input 3 Check the supply gas pressure It must be within the limits shown on rating nameplate Supply pressure should be checked with ...

Page 10: ...me needed for one revolution of the hand on the smallest dial on the meter A typical gas meter usually has a 1 2 or a 1 cubic foot test dial 3 Using the number of seconds for each revolution and the size of the test dial increment find the cubic feet of gas consumed per hour from Table 9 If the actual input is not within 5 of the furnace rating with allowance being made for the permissible range o...

Page 11: ...f each heating season make a visual check of the main burner flame If it is not possible to adjust for the proper flame the burners may need cleaning TO CLEAN BURNERS Remove them from the furnace as explained in Burner Instructions Clean burners with hot water applied along top of the burner COMBUSTION AIR DISCHARGE Visually inspect discharge outlet periodically to insure soot and dirt buildup is ...

Page 12: ...Unitary Products Group P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in U S A Copyright by York International Corporation 1995 All Rights Reserved 530 44 N5Y ...

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