Mestek TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS Скачать руководство пользователя страница 23

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  Q. Cold air is delivered during 

heater operation.

  R. High limit tripping.

   S.  Power ventor will not run.

 

T. Power ventor turns on and off 

during operation.

  U. Power ventor will not stop.

 1. 

Refer 

to 

“Operation”.

 2. 

Refer 

to 

“Operation”.

  1. Burner orifi ces may be too large, verify 

and replace.

  2. Check for proper voltage, ensure fan 

blade is correct.

   3. Check operation of switch, did the switch 

open when unit is running or is the switch 
open during start-up.

  4. Check for 24v on line side of the high limit. 

Constant voltage should be recorded if not 
control board is suspect. Check fl ash code.

 1. 

Check all wring in the power vent circuit to 
ensure good connection, including “Neutral”.

   2.  Check for 115v between motor leads and 

check amp draw of motor. Replace if needed.

   3. Check for continuous 115v on terminal 

“CBM Blower” and neutral during call for 
heat. If not present and all checks are 
normal, replace.

  1. Check power ventor circuit per wiring 

diagram.

 2. 

Check motor voltage and amp draw to motor 
name plate, replace if motor found defective.

  3. Check for continuous 115v on terminal 

“CMB Blower” during call for heat, replace 
board if found defective.

  1. Check power ventor circuit per wiring 

diagram.

 2. 

 

Heater is in lockout mode check fl ash code 
table for problem.

  3. No fl ash codes present along with no call 

for heat, replace control board.

SYMPTOMS

POSSIBLE CAUSE(S)

CORRECTIVE ACTION

  1. Incorrect manifold pressure or input.
   2. Air throughput too high.

  1. Unit is over fi red.

  2. Air fl ow is low.

 3. 

Defective 

switch.

  4. Defective control board.

  1. Loose wiring or connections.

  2. Motor overload is tripped or bad motor.

   3. Bad control board.

  1. Power ventor improperly wired.

  2. Motor overload cycling or defective motor.

  3. Defective control board.

  1. Power ventor improperly wired.

  2. Main burner did not light on call for heat.

  3. Defective control board.                     

Table 7 - Tubular Propeller Troubleshooting Guide

Содержание TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS

Страница 1: ...t any problem that may be found RECEIVING INSTRUCTIONS Inspect shipment immediately when received to determine if any damage has occurred to the unit during shipment After the unit has been uncrated c...

Страница 2: ...on Air 5 7 Proper Clearances 5 7 Suspension of Units 5 7 Heat Throw Data 6 Gas Piping 8 9 ELECTRICAL CONNECTIONS 10 11 12 VENTING 13 14 15 16 17 OPERATION Explanation of Controls and Operation 18 Main...

Страница 3: ...t Start Up Sheet located in this manual Use only the fuel for which the heater is designed see rating plate Using LP gas in a heater that requires natural gas or vice versa will create risk of gas lea...

Страница 4: ...9 279 311 311 311 E Hanging Distance Width 18 5 8 18 5 8 18 5 8 30 5 8 30 5 8 30 5 8 48 5 8 48 5 8 48 5 8 473 473 473 778 778 778 1235 1235 1235 F Discharge Opening Width 18 3 4 18 3 4 18 3 4 30 3 4 3...

Страница 5: ...ve the floor must be equipped with an OSHA approved fan guard Refer to the latest edition of NFPA 88A Parking structures In Canada installation must be in accordance to the latest edition of CSA B149...

Страница 6: ...NR NR 44 47 58 66 71 75 6 1 13 4 14 3 17 7 20 1 21 6 22 9 60 8 75 80 85 90 95 110 125 130 138 2 4 22 9 24 4 25 9 27 4 29 0 33 5 38 1 39 6 42 1 10 65 70 75 79 83 95 109 115 120 3 0 19 8 21 3 22 9 24 1...

Страница 7: ...ere is a possibility of distortion or discoloration of adjacent materials Make certain that the lifting methods used to lift the heater and the method of suspension used in the field installation of t...

Страница 8: ...vity Gas Nominal Iron Internal Length of Pipe Feet meters Pipe Size Diameter 10 20 30 40 50 60 70 80 90 100 125 150 175 200 Inch Inch 3 0 6 1 9 1 12 2 15 2 18 3 21 3 24 4 27 4 30 5 38 1 45 7 53 3 61 0...

Страница 9: ...al Fuel Gas Code in Canada according to CSA B149 See Tables 1 3 for correct gas piping size If gas pressure is excessive on natural gas applications install a pressure regulating valve in the line ups...

Страница 10: ...tical vibration free surface free from air currents and in accordance with the furnished instructions Mount the thermostat approximately 5 feet 1 5m above the floor in an area where it will be exposed...

Страница 11: ...11 ELECTRICAL CONNECTIONS continued Figure 5d Tubular Units Equipped with Natural Gas and Propane LP Gas...

Страница 12: ...12 ELECTRICAL CONNECTIONS continued Figure 5e Tubular Unit Sizes with Optional 2 Stage Ignition...

Страница 13: ...operating the gas unit heater will result in the spillage of flue gas into the occupied space 9 Avoid installing units in areas under negative pressure due to large exhaust fans or air conditioning W...

Страница 14: ...isance or hazard or could be detrimental to the operation of regulators relief valves or other equipment The vent pipe equivalent length must not exceed 50 feet 15 2m Equivalent length is the total le...

Страница 15: ...r in the absence of local codes with current CSA B149 1 Installation Codes for Natural Gas Burning Appliances and Equipment or CSA B149 2 Installation Codes for Propane Gas Burning Appliances and Equi...

Страница 16: ...16 Figure 8A Figure 8B VENTING continued D3620F D3619C...

Страница 17: ...17 VENTING continued Figure 9A Figure 9B D3661F D3662D...

Страница 18: ...motor is de energized 6 The fan operation is delayed 30 seconds once the thermostat is closed and continues operation for 30 seconds after the thermostat opens NOTICE The start up fan delay must not e...

Страница 19: ...eaters must be field derated to 90 of the normal altitude rating and be so marked in accordance with ETL certification See Table 6A for field deration information Check the gas input rate as follows R...

Страница 20: ...Refer to Installation Instruction section on Adjustments Gas Input Rate for adjusting the manifold pressure Manifold Pressure Inc WC PROPANE LP GAS NATURAL GAS Heating Value BTU Hr Altitude Feet 8 6...

Страница 21: ...t openings 3 Clean heat exchanger Refer to Installation 4 Determine cause and repair accordingly 1 Inspect all gas piping and repair 2 Check to ensure gas test ports are seated 3 Clean heat exchanger...

Страница 22: ...tat 1 Replace or tighten 2 Clean power ventor wheel 3 Realign power ventor wheel 1 Check and tighten wires on fan circuit 2 Test for 115v on terminal ACB Heat and L2 if voltage is present replace moto...

Страница 23: ...heat If not present and all checks are normal replace 1 Check power ventor circuit per wiring diagram 2 Check motor voltage and amp draw to motor name plate replace if motor found defective 3 Check f...

Страница 24: ...er 3 5 Amp fuse on circuit board 1 Common side of transformer grounded to chassis 2 Loose spark ignitor 1 Gas supply off or gas supply pressure too low 2 Flame sense rod contaminated or loose wire 3 G...

Страница 25: ...supplied with your unit NOTICE The heater and vent system should be checked once a year by a qualified technician All Maintenance Service information should be recorded accordingly on the Inspection...

Страница 26: ...ing halogenated hydrocarbons precipitated in the air d to any workmanship of the installer of the Product 3 This limited warranty is conditional upon a advising the installing contractor who in turn n...

Страница 27: ...ICATION OF PARTS PROPELLER UNIT HEATERS Figure 13 Heat Exchanger Assembly Figure 14 Electrical Control Panel Figure 11 Propeller Parts Figure 12 Component Parts D4430 Fan Guard Fan Blade Hardware Hard...

Страница 28: ...Venter Assembly 300 400 Unit Sizes Shown HOW TO ORDER REPLACEMENT PARTS Please send the following information to your local representative if further assistance is needed contact the manufacturer s cu...

Страница 29: ...29 NOTES...

Страница 30: ...30 NOTES...

Страница 31: ...11 Supply Voltage SV 1 115 1 60 5 230 3 60 2 208 1 60 6 460 3 60 3 230 1 60 7 575 3 60 4 208 3 60 Z Other Note Supply Voltage SV 2 7 include field mounted step down transformer 12 Motor Type MT 1 Ope...

Страница 32: ...s equipment unless you fully understand the controls GAS EQUIPMENT START UP GENERAL With power and gas off Make certain all packing has been removed Tighten all electrical terminals and connections Ch...

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