Addison UHAS 150 Installation, Operation & Service Manual Download Page 50 | Manualshive

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UHA S

TANDARD

U

NIT

H

EATER

I

NSTALLATION

O

PERATION AND

S

ERVICE

M

ANUAL

42 of 59

14.3 Troubleshooting for Flame Supervision System

NOTE:

Minimum flame probe current 1 μA DC. Typical flame probe current 3-5 μA DC.

To measure flame current, connect a 0 - 50 μA DC meter in series with the flame probe. If the meter

reads negative values, then reverse the test leads.

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Summary of Contents for UHAS 150

Page 1: ...e WARNING Installation must be done by a contractor qualified in the installation and service of gas fired heating equipment or your gas supplier Improper installation adjustment alteration service or...

Page 2: ......

Page 3: ...de l unit de chauffage requise avec les mat riaux combustibles Certains objets prendront feu ou exploseront s ils sont plac s proximit de l unit de chauffage Le non respect de ces instructions peut e...

Page 4: ......

Page 5: ...22 10 3 Low Voltage Thermostat with One Heater for Models UHA X S 300 400 22 10 4 Low Voltage Thermostat with Multiple Heaters Models UHA T X S 150 250 23 10 5 Low Voltage Thermostat with Multiple Hea...

Page 6: ...6 Specifications 56 16 1 Dimension Data for Models UHA T X S 150 250 56 16 2 General Technical Data Table 57 16 3 Technical Data Table 57 16 4 Dimension Data for Models UHA X S 300 400 58 16 5 General...

Page 7: ...Vent Box 16 Figure 10 Concentric Vertical and Horizontal Vent Termination Separated Combustion Heater 17 Figure 11 Gas Connection 20 Figure 12 Automatic Burner Control Sequence 31 Figure 13 Single St...

Page 8: ......

Page 9: ...talled using the best building practices This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge u...

Page 10: ...only Description Part Number Logo Label 91031107 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010441 Installation La...

Page 11: ...umber Logo Label 91031107 Cut Hazard Label 91010430 Vent Length Label 91039505 Vent to Outdoors Label 91010427 Warning Label 91010429 Rating Plate Label 91010441 Installation Label 91010431 Instructio...

Page 12: ...py of the wall tag P N 91040097 is illustrated on the back cover Know your model number Model number is found on the heater serial plate and throughout the Installation Operation and Service Manual 2...

Page 13: ...llow heater to function in HIGH LOW operation 3 3 Location and Suspension All models Must be installed indoors Must be installed in a level position with horizontal discharge May be mounted on a shelf...

Page 14: ...table for your application and the clearances are maintained Read and follow the safety guidelines below Keep gasoline or other combustible material including flammable objects liquids dust or vapors...

Page 15: ...s may be mounted at a higher level if destratification fans are installed For Models UHA 150 400 venting directly from top of heater is not applicable For roof terminal vent elbow duct off back of hea...

Page 16: ...shall not be subject to injury by aircraft cranes movable scaffolding or other objects Provisions shall be made to assure accessibility to suspended heaters for recurrent maintenance purposes 5 3 Par...

Page 17: ...or installations above 2000 610 m in US consult factory for information on burner de rating For installations from 2000 610 m to 4500 1370m in Canada high altitude conversion kits are available Heater...

Page 18: ...r electrical supply lines must not be used to support the heater Do not locate the gas or electrical supply lines directly over the path of the flue products from the heater The heater must be install...

Page 19: ...ve a minimum temperature rating of 480 F 250 C 7 1 1 United States Requirements Vent must terminate at least 3 9 m above any forced air inlet located within 10 3 1 m Vent must terminate at least 4 1 2...

Page 20: ...m per 1000 Btu h firing rate Canada 7 4 Horizontal Venting Horizontally vented heaters must be individually vented no common venting Vent pipe must be sloped 6 cm for every 1 3 m In noncombustible wal...

Page 21: ...ow the lighting instructions Place the appliance being inspected in operation Adjust thermostat so that the appliance will operate continuously 5 For any appliance having a draft hood test for draft h...

Page 22: ...Termination Vertical Option Horizontal Option Vent 90 Bend 12 31 cm Minimum from roof to vent termination Vent Termination Listed thimble through combustible wall Flashing By Others 12 31 cm Minimum...

Page 23: ...must equal sum of open area of individual vents D Single Wall Pipe The last section of vent pipe passing through the roof or wall may be Type B vent pipe All other vent materials in the building must...

Page 24: ...inimum from wall to bottom of air inlet 12 31 cm Minimum from air intake to vent termination Vent Termination Model Vent Diameter Part Number UHA T X S 150 250 4 10 cm 90502102 UHA X S 300 400 4 10 cm...

Page 25: ...Minimum from roof to combustion air terminal Flashing By Others 12 31 cm Minimum from wall to combustion air terminal Description Part Number Qty Concentric Vent Kit 150 250 UHVK1 Concentric Vent Box...

Page 26: ...mbustion and heating requirements in accordance with local and national codes 8 3 Building Ventilation Where ventilation is required air must be taken from an outside point where it is not likely to b...

Page 27: ...opane and natural gas CAN CGA 8 1 latest revision 9 1 Connections Connect the heater to the gas supply ensuring that the final connections are as follows Gas supply pipe work is run in medium or heavy...

Page 28: ...ion Option B Medium or Heavy Gauge Pipe Gas Connector Option A Stainless Steel Flexible Gas Connector Do not twist flexible gas connector Ensure all joints are gas tight CAUTION Hold gas nipple secure...

Page 29: ...ited States refer to National Electrical Code NFPA 70 latest revision Canada refer to Canadian Electrical Code CSA C22 1 Part I latest revision 10 1 Positioning Thermostats A room thermostat should be...

Page 30: ...Thermostat with Fan Control G R Gas Supply CWGR Terminal Strip NOTE Electrical supply is located below terminal strip NOTE Electrical supply is located below terminal strip 10 3 Low Voltage Thermostat...

Page 31: ...ly operations are to be used two relays will be required per group of heaters supply circuit Low Voltage Thermostat R C W G Y 1 2 3 4 5 6 COIL COIL Black Black White Red Transformer Relay FRONT VIEW B...

Page 32: ...NOTE If both the heat and fan only operations are to be used two relays will be required per group of heaters supply circuit Low Voltage Thermostat R C W G Y 1 2 3 4 5 6 COIL COIL Black Black White R...

Page 33: ...s Valves NOTE For field wiring into service junction box or if any of the original wire supplied with the heater must be replaced it must be replaced with wiring material having a temperature rating o...

Page 34: ...gram for Single Stage Gas Valves NOTE For field wiring into service junction box or if any of the original wire supplied with the heater must be replaced it must be replaced with wiring material havin...

Page 35: ...LOW CONTROL HIGH LOW COMMON NOTE For field wiring into service junction box or if any of the original wire supplied with the heater must be replaced it must be replaced with wiring material having a t...

Page 36: ...m for Two Stage Gas Valves HIGH STAGE NOTE For field wiring into service junction box or if any of the original wire supplied with the heater must be replaced it must be replaced with wiring material...

Page 37: ...N 10 WIRING 29 of 59 10 10 Electrical Connection to the Heater Note Junction box is not provided with heater Conduit can also be attached directly to heater with wire junction made within the heater c...

Page 38: ...ctions can result in severe injury or product damage 11 1 Pre Start Up Checks All pre start up checks must be carried out before lighting the heater Ensure that the heater and all controls are suitabl...

Page 39: ...ll be no ignition of the burner and lockout will occur which proves the controls are operating correctly Figure 12 Automatic Burner Control Sequence Burner Sequence for Ignition Control Flame Signal S...

Page 40: ...ure TOP VIEW END VIEW Description Part Number Gas Valve 150 250 NG 90032505 Gas Valve 150 250 LP 90032506 Gas Valve 300 400 NG 90032520 Gas Valve 300 400 LP 90032521 Figure 14 Two Stage Gas Valve for...

Page 41: ...gas meter For two stage valve High Low operation check gas flow in both operating modes 3 Turn off heater and electrical supply 4 Remove the manometer and refit all covers to the valve and tighten the...

Page 42: ...erate automatically under the control of the on site controls 12 2 2 To Turn Heater Off Set the thermostat to the OFF position The burner will turn off immediately The fan will continue to run for 90...

Page 43: ...be traced by using the troubleshooting charts on Page 39 Section 14 through Page 43 Section 14 5 IMPORTANT Check all gas pipes and pipe joints to ensure there are no cracks or gas leaks Any cracks in...

Page 44: ...3 Section 15 10 Ensure that the fan is free to run and that the fan wheel is clean 13 7 Venting and Air Intake Pipe Inspect all venting and air intake pipe Ensure that all seams are sealed and suspens...

Page 45: ...ed areas or corrosion The area must be free of dirt and dust Clean and reinstall as required See Page 18 Section 8 Heat Exchanger Make sure there are no cracks Make sure there is no sagging bending or...

Page 46: ...Verify that cap covering pressure regulator adjustment screw is secure and has not been tampered with Verify all wiring connections Condensate Drain when installed Flush drain and clear any obstructio...

Page 47: ...e to follow these instructions can result in death electric shock injury or property damage Burn Hazard Allow heater to cool before service Tubing may still be hot after operation Explosion Hazard Tur...

Page 48: ...UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL 40 of 59 14 1 General...

Page 49: ...1 of 59 14 2 Troubleshooting For Automatic Ignition Burner Systems For your safety and optimum heater performance use only replacement parts sold and supplied by Addison Conduct start up procedure as...

Page 50: ...9 14 3 Troubleshooting for Flame Supervision System NOTE Minimum flame probe current 1 A DC Typical flame probe current 3 5 A DC To measure flame current connect a 0 50 A DC meter in series with the f...

Page 51: ...4 Troubleshooting for Gas Valves 14 5 Troubleshooting for Flue Blower For your safety and optimum heater performance use only genuine replacement parts sold and supplied by Addison Conduct start up pr...

Page 52: ...w instructions on Page 45 Section 15 2 through Page 47 Section 15 3 1 to remove gas valve manifold Replace in reverse order Verify that the gas flow direction of the valve is correct Use a minimum amo...

Page 53: ...10 screws holding the filler panel on and remove the filler panel 15 2 1 Ignition Electrode Inshot Burners Manifold Orifice Flame Probe Screws Screws Screws Side View of Burner Compartment with Fille...

Page 54: ...ure all pipe joints are gas tight Burner Injectors for Models UHA T X S 150 250 MODEL UHA T X S 150 UHA T X S 175 UHA T X S 200 UHA T X S 225 UHA T X S 250 Orifice Quantity 7 8 9 10 11 Natural Gas G20...

Page 55: ...nt with the gas pipe rubber seal fully in place and all screws fitted and tight NOTE Flexible duct only applies for model UHAS 15 3 1 Screws Manifold Inshot Burners Orfices Burner Screws Burner ventur...

Page 56: ...dule 90434008 1 Inshot Burners UHA T X S 150 92000001 7 Inshot Burners UHA T X S 175 92000001 8 Inshot Burners UHA T X S 200 92000000 9 Inshot Burners UHA T X S 225 92000000 10 Inshot Burners UHA T X...

Page 57: ...ot Burners Flame Probe Description Part Number Qty Spark Electrode 90427411 1 Automatic Ignition Flame Probe 90439300 1 Transformer 90436900K 1 Ignition Module 90434008 1 Inshot Burners UHA X S 300 92...

Page 58: ...el The tube supports are made of aluminized steel 409 stainless steel 15 7 Louvers and Louver Spring Push in Louver and compress spring to remove and replace opposite end first Horizontal Louvers Desc...

Page 59: ...plug in tabs Remove screws securing flue fan mounting plate to vent box Remove screws securing mounting plate to fan Not shown Refit in reverse Use new gaskets Ensure sealed joints Ensure mounting pla...

Page 60: ...l connections at plug in tabs Remove screws securing flue fan mounting plate to vent box Remove screws securing mounting plate to fan Not shown Refit in reverse Use new gaskets Ensure sealed joints En...

Page 61: ...Gasket Remove screws securing outlet flange to the flue adapter Refit in reverse order Remove screws securing flue blower mounting plate to vent box Remove screws securing mounting plate to blower Ref...

Page 62: ...50 175 UHA T X S 200 225 UHA T X S 250 UHA X S 300 350 UHA X S 400 15 12 Ignition Control The control mounts to the electrical plate Pull out ignition cable and wiring from board noting their position...

Page 63: ...2 To Replace the Fan Assembly To replace the fan assembly reverse the procedure shown above Check that the fan blades are free to rotate before turning on the power to the fan Strictly comply with the...

Page 64: ...2 4 107 7 42 4 107 7 42 4 107 7 B in cm 26 7 67 8 26 7 67 8 35 0 88 9 35 0 88 9 35 0 88 9 C in cm 25 5 64 8 25 5 64 8 25 5 64 8 25 5 64 8 25 5 64 8 D in cm 17 6 44 7 17 6 44 7 17 6 44 7 17 6 44 7 17 6...

Page 65: ...t exceed the maximum length of flue stated or heater may not operate properly 16 3 Technical Data Table Model UHA T X S 150 UHA T X S 175 UHA T X S 200 UHA T X S 225 UHA T X S 250 Total Input Btu h x...

Page 66: ...9 16 4 Dimension Data for Models UHA X S 300 400 A B F G H Heater must be supported at these points from above or below 4 x 3 8 Captive Nuts Provided Electrical Supply Air Intake UHA X S only Flue C D...

Page 67: ...Technical Data Table Model UHA X S 300 UHA X S 350 UHA X S 400 Full Load Amps 120 V A 11 6 11 6 11 6 Air Volume CFM 4663 4663 4663 Flue and Air Intake Flue Intake Size in cm 4 10 4 10 4 10 Air Intake...

Page 68: ...UHA STANDARD UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL 60 of 59...

Page 69: ...annual maintenance history The data plate and or serial number are removed defaced modified or altered in any way The ownership of the ADDISON UHA Series is moved or transferred This warranty is nontr...

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