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INSTALLATION AND SERVICE MANUAL

OUTDOOR ROOFTOP GAS-FIRED DUCT FURNACE

(NATURAL OR POWER VENTED)

(S) RISM-9

J30-05380A

ATTENTION:  READ THIS MANUAL AND ALL LABELS ATTACHED TO THE UNIT CAREFULLY
BEFORE ATTEMPTING TO INSTALL, OPERATE OR SERVICE THESE UNITS!  CHECK UNIT DATA
PLATE FOR TYPE OF GAS AND ELECTRICAL SPECIFICATIONS AND MAKE CERTAIN THAT THESE
AGREE WITH THOSE AT POINT OF INSTALLATION.  RECORD THE UNIT MODEL AND SERIAL No.(s)
IN THE SPACE PROVIDED.  RETAIN FOR FUTURE REFERENCE.

Model No.

Serial No.

FOR YOUR SAFETY

The use and storage of gasoline or other flammable vapors and liquids in open
containers in the vicinity of this appliance is hazardous.

INSTALLER'S RESPONSIBILITY

Installer Please Note: 

This equipment has been test fired and inspected.  It has been shipped

free from defects from our factory.  However, during shipment and installation, problems such as
loose wires, leaks or loose fasteners may occur.  

It is the installer's responsibility to inspect

and correct any problems that may be found.

SAVE THIS MANUAL

These units are certified by CSA International for operation on either natural or propane gas.

     

Read this manual and all labels attached to the unit carefully before attempting to install, operate or

service the following unit models:*

Outdoor Rooftop Duct Furnaces: QV(RT/PV)- (100, 150, 200, 250, 300, 350, 400) (H)(M)

(RT = Natural Vent; PV = Power Vent)

*L

ook in the direction of the unit air flow to determine whether the unit is right or left-hand accessible.

FOR YOUR SAFETY

If you smell gas:
1. Don’t touch electrical switches.
2. Extinguish any open flame.
3. Immediately call your gas supplier.

 Improper installation, adjustment, alteration, service or maintenance can

cause property damage, injury or death. Read the installation, operating and
maintenance instructions thoroughly before installing or servicing this equipment.

 Install, operate and maintain unit in accordance with manufacturer's

instructions to avoid exposure to fuel substances or substances from incomplete
combustion which can cause death or serious illness. The state of California has
determined that these substances may cause cancer, birth defects, or other
reproductive harm.

http://www.mestek.com

260 NORTH ELM ST., WESTFIELD, MA 01085

TEL: (413) 564-5540     FAX: (413) 562-5311

HVAC PRODUCTS

Содержание outdoor rooftop gas-fired duct furnace

Страница 1: ...e units are certified by CSA International for operation on either natural or propane gas Read this manual and all labels attached to the unit carefully before attempting to install operate or service...

Страница 2: ...h 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 t...

Страница 3: ...kit contains insulated curb rails hardware sealant self adhering rubber gasketing and installation instructions Roof insulation cant strips flashing roof felts caulking and nails must be furnished by...

Страница 4: ...1156 1326 40 60 3 8 45 13 16 26 17 1 2 26 11 16 51 57 11 16 3 4 1 2 OR 3 4 1534 1164 660 445 678 1295 1465 NOTE DIMENSIONS ARE IN INCHES DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS F DIMENSION IS TH...

Страница 5: ...4 603 17 50 0 50 984 184 198 100H 100 000 80 000 80 1 235 3 704 20 60 2 7 1 8 1 2 1 2 199 218 29 3 23 4 0 583 1 748 11 33 0 50 181 90 99 150H 150 000 120 000 80 1 852 5 556 20 60 2 11 1 4 1 2 1 2 226...

Страница 6: ...er 1 Select heater size based on heat loss of the building to be heated 2 Select temperature rise desired 3 Based on temperature rise the horizontal line inter sects heater temperature vs CFM curve 4...

Страница 7: ...t factory furnished and must be built on the job by the installer and a damper placed therin if required USE OF BYPASS CURVES The width of the by pass for CFM in excess of that provided through the he...

Страница 8: ...ications See figures 1 2 and charts 1 2 D3589 D3589A 18 457 5 16 8 Ductwork Natural or Power Vent Furnace Air Flow 5 16 8 18 457 18 457 36 914 36 914 Clearance For Drawer Pul out 18 457 5 16 8 Typ Duc...

Страница 9: ...d be produced Figure 7 Vent Cap Assembly Natural Vented Furnaces Only FIELD INSTALLATION INSTRUCTIONS 1 Remove Side Access Panel 2 Insert Vent Sleeve of Vent Cap Assembly Item 1 thru Top Panel Assembl...

Страница 10: ...de The location of this valve must comply with the local codes A 1 8 inch N P T plugged tapping accessible for test gauge connection must be installed immediately upstream of the gas supply connection...

Страница 11: ...for Determining Pipe Size GAS METER A 20 ft 6 56 m 20 ft 6 56 m 5 ft 1 64 m 5 ft 1 64 m 10 ft 3 48 m B C D F E 10 ft 3 28 m HEATER S 200 CFH HEATER S 150 CFH 3588 HEATER S 100 CFH D3588 NOTICE If more...

Страница 12: ...00 4750 4300 3900 3700 3450 3250 2950 2650 2450 2280 78 311 218 177 150 135 122 110 105 97 7 92 0 83 5 75 0 69 4 64 6 4 4 026 23000 15800 12800 10900 9700 8800 8100 7500 7200 6700 6000 5500 5000 4600...

Страница 13: ...D 3 AIR SHUTTERS 4 BURNER SPRINGS 5 MAIN BURNER ORIFICE 6 TRANSFORMER 7 PILOT TUBING CONTROLS 8A MAIN GAS VALVE HONEYWELL 8B MAIN GAS VALVE WHITE RODGERS 9 HONEYWELL IGNITOR 10 HONEYWELL PILOT BURNER...

Страница 14: ...iring diagram GAS CONTROLS SINGLE STAGE CONTROL Gas heating units are factory provided with an automatic single stage gas valve This valve is an on off type control typically activated by a low voltag...

Страница 15: ...int 1 2 3 4 5 6 7 8 9 60 100 F 60 65 70 75 80 85 90 95 100 75 200 F 75 91 106 122 138 150 NA NA NA NA Maximum furnace discharge temperature allowed 150 F The unit is also provided with an automatic el...

Страница 16: ...ased voltage closes a relay which closes the automatic gas valve 9 When the thermostat is satisfied the main and pilot valves close 10 The fan time delay relay remains closed keeping the fan motor ope...

Страница 17: ...fire If cycling on the high limit is noted corrective measures should be taken immediately Failure to do so could cause unit damage and possible fire The unit is furnished with an intermittent pilot i...

Страница 18: ...the National Fuel Gas Code ANSI Standard Z223 1999 N F P A no 54 or the latest edition When installed in Canada any references to deration at altitudes in excess of 2000 feet 610m are to be ignored At...

Страница 19: ...ization range 5 Inspect the interior of the unit remove any debris or tools which may be present START UP STARTING UNIT IN HEATING MODE 1 Close the unit disconnect switch s that provide current to the...

Страница 20: ...er in position 4 Slide the drawer out of the furnace 5 Burners can be removed from the drawer by raising the front of the burner and pushing it against the hold in spring until the front of the burner...

Страница 21: ...21 Figure 13 Natural Vent Duct Furance Figure 14 Power Vent Duct Furnace...

Страница 22: ...ng for heat 4 Defective limit switch 5 Improper thermostat or trans former wiring at gas valve 6 Defective gas valve 7 Defective thermostat CORRECTIVE ACTIONS 1 Inspect all gas piping and repair 2 Cle...

Страница 23: ...hen check for 24 volts at secondary terminal before replacing 9 Check and tighten all wiring connections 10 Replace 1 Reset manifold pressure Refer to operation 2 Replace regulator section of combinat...

Страница 24: ...3 Clean flue Refer to installation 4 Determine cause and repair accordingly Refer to installation 1 Relocate thermostat away from drafts 2 Replace thermostat 3 Check wiring diagrams 4 Check operation...

Страница 25: ...MPTOMS N Too much heat P Power venter motor will not start Q Noisy power venter R Power venter will not run S Power venter motor will not stop CORRECTIVE ACTION 1 Replace thermostat 2 a Check wiring p...

Страница 26: ...or neglect has been accidentally or intentionally damaged has not been installed maintained or operated in accordance with the furnished written instructions or has been altered or modified in any wa...

Страница 27: ...l field installed controls been installed Do you understand all the controls on this equipment DO NOT START this equipment unless you fully understand the controls GENERAL With power and gas off Make...

Страница 28: ...http www mestek com 260 NORTH ELM ST WESTFIELD MA 01085 TEL 413 564 5540 FAX 413 562 5311 HVAC PRODUCTS...

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