Carrier 42DH Manual Download Page 4

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Fig. 2 —

Unit Installation - Threaded Rod Suspension

Fig. 3 —

42DH Horizontal Unit Installation - Recommended Clearances (Top View)

Isolators - 4 per unit
(Field furnished
and installed)

Washer And Double Nut (Field
Furnished and Installed)

5/8” Knockouts For
Suspension rods
(4 Places top and 4 places
Bottom of unit)

Threaded rod suspension (Field
Furnished and installed)

Trapeze -
Recommended on
Unit size 30

Minimum Recommended

Clearance

Minimum Recommended

Clearance

Electric Heat Controls

Airflow

Filter

Drain Pan

Electric Heat

Elements

29 In.

Minimum Recommended

Clearance

29 In.

Fan Motor

Piping Package

Fan

Summary of Contents for 42DH

Page 1: ...ns and have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions attached to the unit Consult local building codes and appropriate national electrical c...

Page 2: ...ity for per sonal injury or property damage resulting from improper or unsafe practices during the handling installation service or operation of any equipment CAUTION Disconnect all power prior to any...

Page 3: ...confirm incoming and control power requirements match available power source Refer to unit nameplate and wiring diagram 1 Review all tags on unit to determine if shipping screws are to be removed Rem...

Page 4: ...rnished and Installed 5 8 Knockouts For Suspension rods 4 Places top and 4 places Bottom of unit Threaded rod suspension Field Furnished and installed Trapeze Recommended on Unit size 30 Minimum Recom...

Page 5: ...nces Top View 29 In Minimum Recommened Clearance 29 In Minimum Recommened Clearance 29 In Minimum Recommened Clearance Filter Piping Package For drain pan or coil removal the recommended clearance sho...

Page 6: ...ouble wall cabi net construction For a different coil and cabinet options use the weight correction factor table Table 1 Total Unit Weight Adjustment NOTES 1 Unit weights shown in pounds 10 are based...

Page 7: ...Fig 8 All hardware required for assembly is included and the base rails are letter coded for ease of assembly See Fig 9 Fig 8 Base Rails Fig 9 Letter Coding on Base Rail Parts PLACE UNIT ON THE BASE...

Page 8: ...mixing box with supplied No 8 x 1 2 in sheet metal screws two per side See Fig 12 For bottom entering configurations length adjustments to the bot tom damper shaft may need to be completed prior to fi...

Page 9: ...lter access panel See Fig 14 Fig 14 Optional Mixing Box 3 76 A C 2 4 61 4 102 H 2 4 61 3 76 1 25 2 51 2 51 W B Top Views BTM Rear Inlet 42DH Top Rear Inlet 42DH Top Front Inlet 42DV W 4 102 2 4 61 C 1...

Page 10: ...rence at any point during travel Tighten rod clamp of swivel onto each damper rod Fig 17 Install Damper 7 Confirm correct operation of dampers Adjust as needed Tighten remaining fasteners Step 3 Conne...

Page 11: ...5 1 2 0 625 1 2 0 625 16 22 1 1 125 1 1 125 1 1 125 1 1 125 1 2 0 625 30 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 1 2 1 625 HR CR CS HS Return Air Drain LH TELL TALE RH TELL TALE LEGEND 2 Verti...

Page 12: ...16 1 LH 10 5 8 7 3 4 12 9 5 8 7 RH 13 3 8 9 5 8 7 2 12 7 16 3 8 13 5 8 10 3 8 7 9 16 6 7 3 4 15 5 8 8 1 8 1 LH 10 5 8 7 3 4 12 11 13 16 9 3 16 RH 13 3 8 11 13 16 9 3 16 2 12 7 16 3 8 13 5 8 12 1 2 9 3...

Page 13: ...06 12 0 375 1 4 3 4 0 875 1 2 0 625 1 2 0 625 16 22 0 375 1 4 1 1 125 1 1 125 1 2 0 625 30 0 625 1 2 1 1 2 1 625 1 1 2 1 625 1 1 2 1 625 LEGEND HR HS SL LL Return Air Drain LH TELL TALE RH TELL TALE N...

Page 14: ...1 2 2 3 4 6 1 4 5 1 8 17 1 8 3 3 4 2 5 8 2 5 8 6 2 4 4 7 8 3 1 4 3 1 4 6 16 4 6 1 2 7 1 8 12 1 2 2 3 4 6 1 4 5 1 8 17 1 8 3 3 4 2 5 8 2 5 8 6 2 4 6 3 8 10 13 5 8 6 6 8 4 1 8 2 5 8 6 20 22 4 6 1 2 7 1...

Page 15: ...WIDTH HEIGHT SUPPLY DUCT RETURN DUCT MOUNTING HOLES AUX CTRL BOX M A B C D E F G J K L 06 9 x 6 36 28 19 3 4 8 7 8 10 7 8 13 3 4 2 1 4 24 1 4 14 2 3 4 27 1 4 35 1 4 5 3 4 2 08 9 x 6 36 28 19 3 4 8 7...

Page 16: ...tors and or cabinet lighting option not required with low voltage 0 10v controls UNIT SIZE FAN SIZE DEPTH UNIT DEPTH WIDTH HEIGHT SUPPLY DUCT RETURN DUCT MIX BOX MOUNTING HOLES AUX CTRL BOX M A B C D...

Page 17: ...g UNIT SIZE FAN SIZE DEPTH WIDTH HEIGHT SUPPLY DUCT FLANGE RETURN DUCT FLANGE AUX CTRL BOX UNIT SIDE TO DUCT FLANGE UNIT BOTTOM TO DUCT FLANGE A B C E F L M N 06 9 x 6 20 28 36 1 2 8 7 8 10 7 8 15 1 8...

Page 18: ...field installation of actuator Kit consists of 2 crank arms 2 swivels and either a 25 in sizes 06 16 or 34 in sizes 20 30 length of 5 16 in rod 10 Add 2 in if using a prefilter or 4 in filter UNIT SIZ...

Page 19: ...ld wiring shall be made in compliance with all governing codes and ordinances Compliance with all codes is the responsibility of the installing contractor All components furnished for field installati...

Page 20: ...sible before beginning any system balancing Cooling Heating System Prior to the water system start up and balancing flush the chilled hot water systems to clean out dirt and debris which may have coll...

Page 21: ...tronically Commutated Motors ECM constant speed brushless DC which are easily adjustable in the field for desired performance Motors are pre programmed for constant speed mode 1 2 HP and 1 HP motors h...

Page 22: ...low rates in a convenient place for future reference Before and during water system balancing conditions may exist due to incorrect system pressures which may result in noticeable water noise or undes...

Page 23: ...air through the coil fins from the leaving air face This should again be followed by vacuuming Units equipped with regularly replaced air filters will require less frequent coil cleaning Electric Res...

Page 24: ...ed main drain line by flow from tell tale connection Should algae and or bacteria growth become a concern con sult an air conditioning and refrigeration supply organization familiar with local conditi...

Page 25: ...Detail Y Detail Y Filter Support Angle Bracket Filter Support Angle Bracket 1 Filter Slot 2 Filter Slot D See Detail Y See Detail X Detail X Detail Y Magnets C 2 Filter 1 Filter 4 Filter B A D 2 Filt...

Page 26: ...h Control Board Fig B No Electric Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit WARNING Wiring d...

Page 27: ...WIRING DIAGRAM EXAMPLES cont Fig C Single Element Heater Single Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are pro vided as an example only ALWAYS refer to WIRING DIAGRAM...

Page 28: ...28 Fig D Two Element Heater Single Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 29: ...CAL WIRING DIAGRAM EXAMPLES cont Fig E Two Element Heater Two Stage Heat Single Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM at...

Page 30: ...30 Fig F Three Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 31: ...AL WIRING DIAGRAM EXAMPLES cont Fig G Six Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Page 32: ...32 Fig H Six Element Heater Two Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 33: ...L WIRING DIAGRAM EXAMPLES cont Fig I Nine Element Heater Single Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Page 34: ...34 Fig J Nine Element Heater Two Stage Heat Three Phase Power with Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 35: ...Power with Control Board Fig L No Electric Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit WA...

Page 36: ...Board Fig N Single Element Heater Single Stage Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 37: ...L WIRING DIAGRAM EXAMPLES cont Fig O Two Element Heater Two Stage Heat Single Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM a...

Page 38: ...38 Fig P Three Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 39: ...WIRING DIAGRAM EXAMPLES cont Fig Q Six Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

Page 40: ...40 Fig R Six Element Heater Two Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 41: ...WIRING DIAGRAM EXAMPLES cont Fig S Nine Element Heater Single Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

Page 42: ...42 Fig T Nine Element Heater Two Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM attached to the unit...

Page 43: ...WIRING DIAGRAM EXAMPLES cont Fig U Nine Element Heater Three Stage Heat Three Phase Power without Control Board WARNING Wiring diagrams are provided as an example only ALWAYS refer to WIRING DIAGRAM...

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Page 46: ...the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53420022 01 Printed in U S A Form 42DHV 2SI Pg 46 1 22 Replaces...

Page 47: ...Y N __________ ARE FURNISH ONLY PARTSACCOUNTED FOR Y N __________ IS THE UNIT ARRANGEMENT HAND CORRECT Y N __________ IS THE UNIT STRUCTURAL SUPPORT COMPLETEAND CORRECT Y N __________ Handling and Ins...

Page 48: ...YTRAP IS DEEP ENOUGH __________ PRIME THE TRAPWITH WATER __________ CHECK SUPPLYAND RETURN WATER CONNECTIONS FOR LEAKS __________ FILL SYSTEMS WITH WATER REFRIGERANT __________ OPENAIR VENT ON TOP OF...

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