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Page 2

 

 

AIR 

FLOW

 

21

 

(533)

 

HEAT  EXCHANGER

 

TOP VIEW

 

ELECTRICAL 

INLET

 

1

 

(25)

 

29

 

(737)

 

1

 

(25)

 

B

 

21

 

(533)

 

HANGING 

BRACKETS (2)

 

A

 

C

 

DIRECT 

DRIVE FAN

 

FLUE 

OUTLET

 

 

BACK VIEW

 

3-5/8 

(92)

 

GAS 

INLET

 

SERVICE 

ACCESS 
PANEL

 

ADJUSTABLE 

LOUVERS

 

 

 

 

 
 

 

 

 

 
 
 

 

 

 

 
 
 

 

 

 

 

 
 
 

 

Model 

No.

 

A

 

B

 

C

 

in.

 

mm

 

in.

 

mm

 

in.

 

mm

 

UHRS-030A 
UHRS-045A

 

12-3/8

 

314

 

6-1/2

 

165

 

3-7/8

 

98

 

UHRS-060A 
UHRS-075A

 

17-1/2

 

445

 

6-1/4

 

159

 

6-1/8

 

156

 

    

UHRS-

090A 

   

 

    UHRS-105A 

 

23

 

584

 

7-7/8

 

200

 

9-1/8

 

232

 

 

1/2 
[13]

 

UHRS-030 / 105 DIMENSIONS  - Inches (mm)

 

MOUNTING SLOTS (Typical)

 

5/16  x  3 Inches (8 x  76 mm)

 

10-1/2 

(267)

 

SIDE VIEW

 

1

 

(25)

 

4-1/4 
(108)

 

HANGING 

BRACKETS (2)

 

8-3/4 
(222)

 

2-3/4 
(70)

 

Summary of Contents for UH Series

Page 1: ... HEATERS 507938 01 6 2019 Gas Connection 18 Leak Check 18 Unit Start Up 18 To Turn Off Gas to Unit 19 Heating Sequence of Operations 19 Ignition Control LED 20 HighAltitudeAdjustments 20 Gas Flow 20 Gas Pressure Adjustments 20 Limit Control Switch 21 Louver VaneAdjustment 21 Combustion AirPressure Switch 21 Flame Rollout Switch 21 Service 21 Start Up and Performance Checklist 22 RETAIN THESE INSTR...

Page 2: ...E ACCESS PANEL ADJUSTABLE LOUVERS Model No A B C in mm in mm in mm UHRS 030A UHRS 045A 12 3 8 314 6 1 2 165 3 7 8 98 UHRS 060A UHRS 075A 17 1 2 445 6 1 4 159 6 1 8 156 UHRS 090A UHRS 105A 23 584 7 7 8 200 9 1 8 232 1 2 13 UHRS 030 105 DIMENSIONS Inches mm MOUNTING SLOTS Typical 5 16 x 3 Inches 8 x 76 mm 10 1 2 267 SIDE VIEW 1 25 4 1 4 108 HANGING BRACKETS 2 8 3 4 222 2 3 4 70 ...

Page 3: ...Page 3 UHRS COMPACT UNIT HEATER PARTS ARRANGEM ENT 030 105K BTUH TRANSFORMER ...

Page 4: ...0 25 635 23 3 4 603 9 1 2 241 3 76 UHCM 125 200 DIMENSIONS Inches mm 16 406 10 1 2 5 3 8 D 1 2 13 3 1 8 79 4 3 8 16 MOUNTING NUTS FOR UNIT SUSPENSION TOP VIEW 2 1 2 64 ELECTRICAL INLETS ADJUSTABLE LOUVERS COMBUSTION AIR INDUCER FLUE OUTLET A 31 7 8 810 10 5 8 270 DIRECT DRIVE FAN 35 1 4 895 AIR FLOW HEAT EXCHANGER GAS VALVE FRONT VIEW SIDE VIEW ...

Page 5: ... 521 1 2 13 C B FLUE OUTLET 4 3 8 16 MOUNTINGNUTS FOR UNIT SUSPENSION 1 2 13 3 1 8 79 DIRECT DRIVE FAN 35 1 4 895 AIR FLOW HEAT EXCHANGER GAS VALVE FRONT VIEW SIDE VIEW 10 5 8 270 COMBUSTION AIR INDUCER ADJUSTABLE LOUVERS TOP VIEW 31 7 8 810 2 5 8 67 ELECTRICAL INLETS 3 76 5 3 8 137 267 10 1 2 UHCM 250 400 DIMENSIONS Inches mm 16 406 A ...

Page 6: ...Page 6 UHCM STANDARD UNIT HEATER PARTS ARRANGEMENT 125 400K BTUH ...

Page 7: ...MA 02269 9101 These instructions are intended only as a general guide and do not supersede local codes in any way Authorities having jurisdiction shouldbeconsulted beforeinstallation The installation must conform with local building codes or in the absence of local codes with the current edition of CSA B149installation compliancecodes Allelectrical wir ing and grounding for the unit must also comp...

Page 8: ...the unit 6 Tighten nuts to secure unit to rods TABLE 2 MAXIMUM MOUNTING HEIGHTS 125 400 UHRS 30 105 Unit may be installed as shown in figure 1 or rotated 180 1 Push each louver to the right to depress spring and release locking tab on the other end locking tab keeps the louver in place for shipping 2 If installing unit in a rotated position release locking tabs in the same manner as previous step ...

Page 9: ...ovisions GENERAL RECOMMENDATIONS AND REQUIREMENTS Unit heaters must be vented in compliance with the lat est edition of the National Fuel Gas Code NFPA 54 ANSI Z223 1 in the USA and with CSA B149 1 codes in Canada as well as applicable provisions of local building codes and the following instructions 030 150 Units The transition isa part of the combus tion air blower 175 400 Units A stamped extrud...

Page 10: ...K 200K 250K 300K Btuh units 6 152mm on 360 400K Btuh units On 175 400 units a flue transition piece supplied is required to fit over the outlet of the induced draft assembly on the appliance NOTE If needed loosen the upper right two or three screws securing thecombustion air blower Slide thetran sition into place and secure loosened screws 3 Keep the vent connector runs as short as possible with a...

Page 11: ...nd block to protect the vent termination from direct winds 6 Horizontal vent termination must be free from obstructions and at least 12 305mm above grade level and maximum snow height 7 Do not install a horizontal vent termination directly below roof eaves or above a public walkway or any other area where condensate dripping may be troublesome and may cause some staining Avoid windows where steam ...

Page 12: ...Page 12 ...

Page 13: ...rmanently sealed 2 A fan assisted unit heater may be commonly vented into an existing lined masonry chimney provided a The chimney is currently serving at least one draft hood equipped appliance b The vent connector and chimney are sized in accordance with venting tables 3 A B1 double wall vent or masonry chimney liner shall terminate above the roof surface with a listed cap or a listed roof assem...

Page 14: ...fter it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above return doors windows exhaust fans fireplace dampers andany othergas burningappliancetotheirprevious condition of use 7 If improperventing is observed during any of the above tests the common venting system must be corrected The common venting system should b...

Page 15: ...E THERMOSTAT CONNECTIONS 24V POWER R R R 24V COMMON C C C P365 AND P364 ARE ENERGIZED SIMULT A N E O U SL Y P374 4 1 1 3 BLOWER G G G HEAT W1 W1 W1 W2 W2 FIELD PROVIDED CLASS II 24VAC THERMOSTAT WIRING Model UHRS Unit Heater Separated Combustion Unit Heater Heat Input 030k 105k BTUH Voltage 120 60 1 Supersedes N A Form No 537992 01 Rev 0 06 07 08 05 04 YEL 03 WHT 02 01 0 C O P366 J 366 P367 J 367 ...

Page 16: ...MOSTAT CONNECTIONS 24V POWER R 24V COMMON C BLOWER G HEAT W1 R R C C G G W1 W1 W2 W2 P365 AND P364 ARE ENERGIZED SIMULT A N E O U SL Y P374 1 4 FIELD PROVIDED CLASS II 24VAC THERMOSTAT WIRING Model UHRS Unit Heater Separated Combustion Unit Heater Heat Input 125k 200k BTUH Supersedes N A Form No 538025 01 Rev 0 02 120 60 1 Voltage 08 07 06 05 04 03 01 YEL WHT 0 P366 J 366 P367 J 367 P363 J 363 W H...

Page 17: ... C OM 6 6 XFMR 24VAC R R C C P364 2 5 8 P365 2 5 8 2 J374 1 4 P374 1 4 BLOWER G G G HEAT W1 HEAT W2 1 FIELD PROVIDED CLASS II 24VAC THERMOSTAT WIRING W1 W1 W2 W2 Model UHCM Unit Heater Separated Combustion Unit Heater Heat Input 250k 400k BTUH Voltage 120 60 1 Supersedes N A Form No 538024 01 Rev 0 01 WHT 06 07 08 05 04 03 02 YEL WHT 0 P366 J 366 P367 J367 P363 J 363 W H T GR N Y E L BLK W H T S 4...

Page 18: ... power to unit These devices should be properly labeled by the installer Unit Start Up FOR YOUR SAFETY READ BEFORE LIGHTING WARNING Electric shock hazard Can cause injury or death Do not use this unit if any part has been under water Immediately call a qualified service technician to inspect the unit and to replace any part of the control system and any gas control which has been under water WARNI...

Page 19: ... the combustion air inducer starts immediately 2 Combustion air pressure switch proves inducer operation before allowing ignition sequence to start This switch is factory set and no adjustment is necessary 3 After pre purge of approximately 30 seconds the spark ignition is energized and the solenoid valves open in the gas valve 4 The spark then ignites the gas the ignition sensor proves the flame ...

Page 20: ...t pressure regulator to pressure shown in table 6 In the US units may be fired at full input up to 2000 feet 610m above sea level Above 2000 feet 610m unit must be de rated by four percent per 1000 feet for instal lation above 2000 feet The de rate may be accomplished by adjusting the manifold pressure See table 7 See the Engineering Handbook for high altitude kit part numbers TABLE 7 TABLE 6 In s...

Page 21: ... on electrode and adjust if required The gap should be between 0 110 and 0 140 3mm to 4mm The gap may be checkedwithappropriatelysizedtwistdrills or feeler gauges d Reinstall burner cluster assembly burner box top gas manifold hightensionandsensorleads Reconnect gas supply piping e Restore electrical power and gas supply Follow lighting instructions to light unit Check burner flame FLUE PASSAGEWAY...

Page 22: ... times beforelocking out the gas valve which will be indicated by two flashes on the LED 6 Torestart the system de energize the thermostat call for heat and follow the operating instructions under Unit Start Up and Operation REPAIR PARTS When ordering repair parts include the complete unit model number listed on the unit rating plate For ex ample UHRS 45A 1 Contact the installing dealer or visit w...

Page 23: ...ranty period for the specific component ADP at its option will furnish a replacement heat exchanger or allow a credit in the amount of the heat exchanger original selling price toward the purchase of a new ADP unit heater No extended coverage granted for UHCM series heat exchangers For information on this products warranty including complete warranty terms registering for an extended warranty or i...

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