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13 & 14 SEER 

AIR HANDLER 

 

INSTALLATION  & SERVICE MANUAL 

 

MODELS: AH2436E1, AH4260E1 

PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION AND BEFORE 
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST 
BE LEFT WITH THE USER AND SHOULD BE RETAINED FOR FUTURE 
REFERENCE BY QUALIFIED SERVICE PERSONNEL.

 

 

 

: Improper installation, adjustment, alteration, service, or maintenance can 

cause injury or property damage.  Refer to this manual.  For assistance or additional 
information consult a qualified installer, service agency, or manufacturer listed below.

 

 
THERMO PRODUCTS, LLC. 
BOX 217 
NORTH JUDSON, IN 46366 
PHONE: (574) 896-2133 

 

 

         MADE IN USA

MAC-183 

ECN 4849-MA  

Summary of Contents for AH2436E1

Page 1: ...USER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE PERSONNEL Improper installation adjustment alteration service or maintenance can cause injury or property damage Refer to this man...

Page 2: ...L 4 BLOWER AIR ADJUSTMENT 6 DUCT SYSTEM 9 DUCT SIZING CHART 10 INDOOR EVAPORATOR COIL 10 TUBING LINE SETS 10 HOW TO MEASURE LIQUID SUB COOLING 14 MEASURING TEMPERATURE DROP ACROSS THE A COIL 15 ELECTR...

Page 3: ...d service person This air handler is not to be used to condition during construction When testing electrical equipment always follow standard electrical procedures and precautions DO NOT wet electroni...

Page 4: ...mits easy knockdown and reassembly See Figure A Figure A FOLLOW THESE STEPS FOR KNOCKDOWN OF AIR HANDLER 1 Start with unit setting in a vertical position Figure A 2 Remove middle door 3 Remove screws...

Page 5: ...the following steps 1 8 must be followed Otherwise skip to step 9 Reversing the horizontal orientation 1 Remove the middle door of the air handler 2 Remove the bottom door of the air handler 3 Remove...

Page 6: ...n bottom door surface and secure in place with screws Refer to Figure B 14 Make appropriate condensate drain connections and seal the access opening INSTALLATION OF THE HOT WATER COIL 1 Remove top doo...

Page 7: ...illing or screwing into panel or plate is necessary make certain drill does not penetrate into any part of evaporator coil or hot water coil Personal injury and or property damage may result Figure D...

Page 8: ...ING SPEEDS Refer Table C1 for setting switches 4 5 6 for the A C sizing Table C1 COOLING SWITCH SETTINGS AH2436E1 COOL Settings SW1 AH4260E1 COOL Settings SW1 A C TONS CFM 4 5 6 4 5 6 2 800 OFF OFF OF...

Page 9: ...119 Heat Kbtu H 51 54 56 58 61 63 66 69 Supply Air F 135 132 129 126 124 121 118 115 Heat Kbtu H 49 51 53 55 57 59 61 63 Supply Air F 130 128 126 123 121 119 117 114 Heat Kbtu H 45 47 50 52 54 57 60 6...

Page 10: ...121 Supply Air F 146 144 141 138 136 133 130 127 Heat Kbtu H 83 88 92 97 102 107 112 118 Supply Air F 145 142 139 137 134 131 129 125 Heat Kbtu H 82 86 90 95 99 104 109 114 Supply Air F 134 132 130 1...

Page 11: ...ciety of Heating Refrigeration and Air Conditioning Engineers Inc ASHRAE Latest Edition Fundamentals Volume To aid you in evaluating existing duct systems quickly review the chart on Page 11 which sho...

Page 12: ...ration A Models 2 CONDENSATE DRAIN PAN is attached to the bottom of the evaporator coil to collect water condensed out of the air Two drain fittings are provided for connection to a convenient drain p...

Page 13: ...042 2 2AC10048 2 2AC10060 2 AC1336 AC1342 AC1348 AC1360 AC1336 AC1342 AC1348 AC1360 7 8 3 8 1 1 8 1 2 1 1 8 1 2 1 It is not recommended to use the AC10 series condensers with these air handlers The no...

Page 14: ...ines listed below 1 No traps in the suction line are necessary if the outdoor condensing unit is level with the indoor evaporator coil or the indoor evaporator coil is 4 feet or less lower then the ou...

Page 15: ...etween the building and the outdoor condensing unit The lines must be provided with sufficient protection and support to prevent damage when installed above ground When making on the job tubing a sold...

Page 16: ...erature reading is taken at the liquid line at the 3 00 o clock or 9 00 o clock position with the liquid line as the center of the clock Figure I Make sure the tube where the temperature is measured i...

Page 17: ...erence between inlet and outlet air This should be measured as close to the air handler as possible to eliminate duct losses ELECTRICAL All wiring must conform to the provisions of local codes or in t...

Page 18: ...AH AIR HANDLER to allow a free standing vertical discharge installation The UA cabinet is shipped completely assembled and ready for installation The return air opening can face either left or right...

Page 19: ...rt No movement Check power at motor Check low voltage 24 VAC R to C at motor Check low voltage connections G PWM W R C at motor Check for unseated pins in connectors on motor harness Test with a tempo...

Page 20: ...ly before replacing motor Automatically assume the motor is bad Orient connectors down so water can t get in Install drip loops Locate connectors above 7 and 4 o clock positions Use authorized motor a...

Page 21: ...ersonnel Low static pressure for lowest noise Set low continuous fan CFM T stat in bad location Figure K ECM PIN CONNECTORS Troubleshooting table above and Figure K adapted from GE Industrial Systems...

Page 22: ...IF CONNECTIONS ARE GOOD AND MOTOR STILL DOES NOT RUN REPLACE MOTOR THIS GUIDE SHOULD BE USED IN THE CASE OF A STOPPED OR MANFUNCTIONED ECM BLOWER MOTOR THE FOLLOWING SHOULD HELP ESTABLISH THE TYPE OF...

Page 23: ...s LED Off 1 HEAT mode On 2 BLOWER HEAT 3 Status LED Flashes 1 COOL mode On 2 Blower On Delay Started 3 Condenser On 4 Status LED On continuous 1 FAN mode On 2 BLOWER LOW 3 Status LED On continuous G A...

Page 24: ...onnect 2 Stage T stat to both W1 and W2 Single Stage T stat W2 Connect single stage T stat to W2 only BLOWER Speeds HEAT The Heating Blower speed selected by positions 1 2 3 of SW1 CFM tables on page...

Page 25: ...All installations and services must be performed by qualified personnel All installations and services must be performed by qualified personnel 23 REPLACEMENT PARTS 23...

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