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22

TROUBLE

 

SHOOTING 

Improper adjustment, alteration, service or maintenance can cause property damage, 
injury or death. This heater must be installed and serviced only by a trained gas service 
technician. 
 
If at the onset of ignition, no ignition occurs, the following should be checked. 
 
Lack of power at the input of the controls caused by: 

 

Check the line voltage (120 v) 

 

The thermostat is not calling for heat 

 

The fan is not running and therefore not closing the air proving switch 

 

Blocked combustion air inlet or blockage in exhaust venting 

 

Faulty air flow connection 

 

The blocked flue air switch in open position 

 

The combustion air switch should be in the closed position 

 

Faulty 24 volt transformer 

 

Low voltage supply to unit 

 
Having established power at the control, and still no ignition occurs then the control itself 
is suspect and should be changed. 
 
If the igniters operate and still no ignition, then the gas valve is suspect.  Be sure that the 
main gas supply is on, that the gas cock in the drop line is on, and that the shut off cock 
on the gas valve is open.  If all gas cocks are open, then power to the gas valve should be 
checked.  If there is power to the valve and it does not open then the valve should be 
replaced. 
 
Continued lockout of the control may indicate that the sensor is not providing the signal 
back to the control (flame sensing circuit).  If the sensor is in the proper position and the 
lockout condition continues, then the grounding connections of the burner, control, and 
transformer should be checked.  Proper polarity must be maintained in the building 
wiring.  Reversed polarity or insufficient supply voltage can cause intermittent ignition 
failure.  If this does not solve the problem, then the control is suspect. 
 
Ignition control modules are solid state; computerized devices that require consistent 
supply voltage. 

RECOMMENDED MAINTENANCE 

Improper adjustment, alteration, service or maintenance can cause property damage, 
injury or death. This heater must be installed and serviced only by a trained gas service 
technician. 
 
Inspect the entire heater system; venting and gas supply connections, at least annually 
prior to the heating season.  Replace worn parts and repair deficiencies. 
 
Check the inlet air opening and the blower periodically, cleaning off any lint or foreign 
matter. It is important that the flow of combustion and ventilation air must not be 
obstructed. 
 
The tube heater burner is completely factory assembled and tested. Any alteration voids 
the certification and manufacturer’s warranty. For additional information, contact your 
local distributor, or the manufacturer. 
 

Summary of Contents for Middleman EZM-100-50

Page 1: ...indicates dual input with the low input being 70 of the high input The installation must comply with local codes and CAN CGA B 149 in Canada or the National Fuel Gas codes WARNING Improper installatio...

Page 2: ...If your gas supplier is not available call the fire department 5 Si votre fournisseur de gaz n est pas disponible appeler les pompiers 6 Do not attempt to light this or any other appliance 6 Ne pas te...

Page 3: ...ures It is the installer s responsibility to assure that adjacent material are not subject to degradation A warning statement that an overhead heater should be installed so that the minimum clearances...

Page 4: ...x 50 000 4 13 15 31 EZUM 100 30 oal 32 3 60 ft 100 000 2 x 50 000 EZUM 120 30 oal 32 3 60 ft 120 000 2 x 60 000 Model No Overall Length Radiant Tube Length Input Clearances to Combustibles cm Top Sid...

Page 5: ...E TO COMPLY WITH THESE WARNINGS AND INSTRUCTIONS AND THOSE ON THE HEATER COULD RESULT IN PERSONAL INJURY DEATH FIRE ASPHYXIATION AND OR PROPERTY DAMAGE DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE...

Page 6: ...res In case of discrepancy the latest codes standards and installation manual will take priority over prior releases WARNING Where there is the possibility of exposure to combustible airborne material...

Page 7: ...ear any smoke from the space Notify site and safety personnel to ensure that alarm systems are not unduly activated WARNING CLEARANCES TO COMBUSTIBLES The stated clearance to combustibles represents a...

Page 8: ...RIZONTAL HORIZONTALE 30 DEG ANGLE Above Sommet Below Dessous Side Cote Back Dos LABOUR REQUIREMENTS Two persons are required to safely install this equipment Wear gloves and other required safety prot...

Page 9: ...s information in these installation instructions GENERAL INSTALLATION PROCEDURE PRE INSTALLATION SURVEY It is recommended that a full heating design including a heat loss calculation be conducted Heat...

Page 10: ...The burner must be installed with the fan on the top Burner employs a ring to connect a hanging chain to stabilize the unit 5 Heaters incorporating baffles must have the baffle installed at the immedi...

Page 11: ...1 Subsequent secondary tubes can now be joined together in the same fashion The self tapping screw holes must be adequately sealed during installation using a high temperature sealant HANGER LOCATIONS...

Page 12: ...firing rate the greater the expansion Survey the available structural supports considering the system configuration and heat requirements of the area to establish the optimum heater location Locating...

Page 13: ...h flexible gas connector 3 A drip leg must be installed in the gas line at the heater inlet connection tee followed by a pipe drop to the heater Failure to provide a drip leg could result in condensat...

Page 14: ...Type 1 Hose Gas Connector CAN CGA 8 1 The heater must be isolated from the gas supply piping system by closing its individual manual shut off valve field supplied during any pressure testing of the ga...

Page 15: ...ed for that portion of the vent that passed through the wall or roof For wall venting the manufacturer s approved vent spout or exhaust cap must be used See page 20 All models vented through a side wa...

Page 16: ...up It is a normal condition that during heat up and cool down a tube heater will expand and contract Allowances for heater expansion must be made in the gas connection venting and combustion air ducti...

Page 17: ...17 VENTING OPTIONS...

Page 18: ...AC1080 Outside Air Adapter AC1030 Remote Thermostat AC1100 Outside Air Wall Cap AC1110 Combustion Air Flex Duct AC1120 4x4x6 Tee AC1130 90 degree Elbow AC1140 180 degree Bend AC1150 Wall Thimble AC11...

Page 19: ...19...

Page 20: ...20...

Page 21: ...is removed from the igniter The flame sensor is utilized As long as a flame is present the valve is held open If the flame is lost the control acts to close the valve within one second and a new trial...

Page 22: ...alve should be replaced Continued lockout of the control may indicate that the sensor is not providing the signal back to the control flame sensing circuit If the sensor is in the proper position and...

Page 23: ...products for certain purposes which may vary among jurisdictions While Easy Radiant Works attempts to assure that its products comply with these many codes it cannot guarantee compliance or cannot be...

Page 24: ...ompleted reports can be faxed to Technical Support Easy Radiant Works at fax no 905 899 2262 or call phone no 905 899 3473 During startup material coatings used in the production of tubes and reflecto...

Page 25: ...25 Middleman single stage wiring diagram...

Page 26: ...26 Middleman LTH dual input wiring diagram...

Page 27: ...INLET GAS SUPPLY PRESSURE WITH HEATER OPERATING WC GAS VALVE OUTLET Manifold PRESSURE WITH HEATER OPERATING WC WHAT IS THE LINE VOLTAGE READING AT THE HEATER VOLTS WHAT IS THE VOLTAGE READING AT THE I...

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