Carrier 42C,V Manuel d'installation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

10Fig. 6 — 42CG Horizontal Cabinet with Electric Heat DimensionsLEGEND1— Junction Box, 4 in. x 4 in.2— Optional Stamped Rear Return Grille3— Drip Lip

11Fig. 7 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,Front Supply, and Bottom Return Dimensions*Unit weights are based on dry coils an

12Fig. 8 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,Front Supply, Bottom Return, and Heater Dimensions121110913NOTES:1. Right hand un

13Fig. 9 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,Front Supply, and Rear Return Dimensions*Unit weights are based on dry coils and

14Fig. 10 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel,Front Supply, Rear Return, and Heater DimensionsNOTES:1. Right hand unit shown;

15Fig. 11 — 42CK Horizontal Cabinet Unit with Telescopic Access Panel DimensionsLEGEND1— Junction Box, 4 in. x 4 in.2— Drip Lip (optional, shipped loo

16Fig. 12 — 42CK Horizontal Cabinet with Telescopic Access Panel and Electric Heat DimensionsLEGEND1— Junction Box, 4 in. x 4 in.2— Strip Heater High

17Fig. 13 — 42VA Furred-In Vertical Unit DimensionsFRONT VIEW*Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves,

18Fig. 14 — 42VA Furred-In Unit with Electric Heat Dimensionsa42-4382*Unit weights are based on dry coils and minimum rows. Weights exclude packaging,

19Fig. 15 — 42VB Vertical Cabinet Unit Dimensionsa42-4383*Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and

2contact your local sales representative or the factory BEFOREproceeding.This document contains general installation instructions forthe 42C,D,S,V uni

20Fig. 16 — 42VB Vertical Cabinet Unit with Electric Heater Dimensionsa42-4384*Unit weights are based on dry coils and minimum rows. Weights exclude p

21Fig. 17 — 42VF Vertical Cabinet Unit with Slant Top Dimensions*Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valv

22Fig. 18 — 42VF Vertical Cabinet Unit with Slant Top and Electric Heater Dimensions*Unit weights are based on dry coils and minimum rows. Weights exc

23Fig. 19 — 42VC Furred-In Lowboy Unit DimensionsLEGEND1— Optional Unit Mounted Control Box2— Drain Pan, Auxiliary, Shipped Loose3— Supply Conn, 5/8-i

24Fig. 20 — 42VC Furred-In Lowboy Unit with Electric Heat DimensionsLEGEND1— Unit-Mounted Control Box (Optional)2— Drain Pan, Auxiliary, Shipped Loose

25Fig. 21 — 42VE Cabinet Lowboy Unit Dimensions*Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other com

26Fig. 22 — 42VE Cabinet Lowboy Unit with Electric Heat Dimensions*Unit weights are based on dry coils and minimum rows. Weights exclude packaging, va

27Fig. 23 — 42VG Furred-In Wall Unit DimensionsLEGEND1— Supply Conn, 5/8-in. OD2— Air Vent, 1/8-in. MPT3— Filter4— Return Air Grille, Stamped5— Stampe

28Fig. 24 — 42DA Furred-In Ceiling Unit with Electric Heat DimensionsUNIT SIZENOMAIRFLOW(cfm)DIMENSIONS (in. ± 1/8) QTY/UNITUNIT WEIGHT* (lb)AA’BD’E H

29Fig. 25 — 42DC Furred-In Ceiling Unit with Plenum and Electric Heat DimensionsUNITSIZENOMAIRFLOW(cfm)DIMENSIONS (in. ± 1/8) QTY/UNITUNIT WEIGHT* (lb

3Table 2 — Physical Data — 42V Series Units*Calculate Operating Weight of Unit: Shipping Weight + Coil Water Weight xNumber Of Coil Rows.†Available in

30Fig. 26 — 42DD Vertical Unit with Full Casing and Electric Heat DimensionsUNITSIZENOMAIRFLOW(cfm)DIMENSIONS (in. ± 1/8) QTY/UNIT UNIT WEIGHT* (lb)AB

31Fig. 27 — 42DE Ceiling Unit with Full Casing and Electric Heat DimensionsUNIT SIZENOM AIRFLOW(cfm)DIMENSIONS (in. ± 1/8) QTY/UNITUNIT WEIGHT* (lb)AB

32Fig. 28 — 42DF Exposed Ceiling Unit with Supply and Return Grille and Electric Heat DimensionsUNIT SIZENOM AIRFLOW(cfm)DIMENSIONS (in. ± 1/8)QTY/UNI

33Fig. 29 — 42SG Furred-In Stack Dimensions24†Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other compo

34Fig. 30 — 42SH Cabinet Dimensions2322212019†Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other compo

35Fig. 31 — 42SJ Back-to-Back Furred-In Stack Dimensions26†Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, an

36Fig. 32 — 42SGM Furred-In Master Stack Dimensions24†Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and oth

37Fig. 33 — 42SGS Furred-In Slave Stack Dimensions23*Drawing provided for reference only. Dimensions may vary with options ordered.NOTES:1. Units are

38Fig. 34 — 42SU Universal Furred-In Stack Dimensions8(203)51(1295)IE1981423152210119352E63(1600)211213177616ABF39(991)5(127)1-1/4(32)4(102)88(2235)HR

39Fig. 35 — 42SU Universal Furred-In Stack with Heater Dimensions658(203)51(1295)IE211016251724121311372E63(1600)231415199818ABF39(991)5(127)1-1/4(32)

4Table 4 — Physical Data — 42S Series Units*Calculate Operating Weight of Unit: Shipping Weight + Coil Water Weight x Number of Coil Rows.†42SJ units

40Fig. 36 — 42SM Mega Furred-In Stack Dimensions30(762)28(711)SWT X 37.5 FLAREADAPTERACOUSTICALSERVICEACCESS PANELFLEXIBLE DRAIN TUBE/P-TRAPFILTERRISE

41Fig. 37 — Return-Air Wall Panels for Furred-In Units — Panels with No Frame DimensionsPANEL NO. 2 WITHOUT DOOR61.1APANEL NO. 1 FOR 42SU52.5APANEL NO

42Fig. 38 — Return-Air Wall Panels for Furred-In Units — Panels with Frame DimensionsINSTALLATIONStep 1 — Place Units in Position42C UNITS1. Select th

43b. Use rods and fasteners to suspend the unit at thefactory-provided 0.375-in. hanger slots (4) withrubber grommets on the top of the unit on the42C

4442D UNITS1. Select the unit location. Allow adequate space for free aircirculation, service clearances, piping and electrical con-nections, and any

45c. If not already installed, install the floor and ceilingtracks up to and over the 42SJ fan coil unit.d. Position the vertical studs and fasten int

468. Anchor risers as required:a. Do not fasten risers rigidly within each unit.Risers must be free to move within pipe chasein response to normal ver

472. Locate and mark the riser and drain knockouts that applyto your particular unit application, ensuring proper orien-tation of the return air openi

48Table 6 — Unit Riser Orientation6. Insert cut riser extensions into the bottom swages of therisers to a penetration depth of 2-inches.7. Invert the

49which the system will be subjected. Low temperature lead al-loy solders such as “50/50” and “60/40” are normally not suit-able.Riser to Drain Instal

5Fig. 1 — 42CA Furred-In Horizontal Unit DimensionsLEGEND1—Junction Box (remote mount)2—Flexible Metal Conduit3—Drain Conn, 7/8-in. OD4 — Tell-Tale D

50debris into the unit valve packages. This will also allowrisers to be drained down after testing in the winter toavoid freeze-up problems. In the ev

51Submittals and product literature detailing unit operation,controls, and connections should be thoroughly reviewed BE-FORE beginning the connection

5212. Test for leaks. Any and all leaks should be repaired beforeproceeding with installation. When testing with air orsome other gas, it might be nec

53 10. Use adhesive or glue to re-attach insulation that haspulled away from the unit during knockout removalprocess. 11. For ducted applications tape

54NOTE: Chilled water piping determines the hand of the unit.Fig. 66 — Pipe Connection ConfigurationsNOTE: Chilled water piping determines the hand of

55Fig. 67 — Piping Connection PositionsFIELD PIPING CONNECTIONS*WALL UNITS, FURRED-INPipe to stub connections at the side of unit.or into optional pip

56Fig. 68 — Symbols and Placement of Valvesa42-213tfCoil Connections (Positions A & B) — When isolation valve only is added to supply or return li

57BALL VALVEBALL VALVE(2) BALL(1) 2-WAY MOTORIZEDRSCOILBALL VALVE (WITHMEMORY STOP)BALL VALVE(2) BALL (ONE WITHMEMORY STOP)(1) 2-WAY MOTORIZEDRSCOILMO

58CIRCUIT SETTER(1) BALL(1) CIRCUIT SETTER(1) 3-WAY MOTORIZEDCOILBALL VALVEGATESHUT OFF VALVE(1) GATE(1) BALL(1) 3-WAY MOTORIZEDRSCOILBALL VALVEBALL V

5942C,D,V DRAIN CONNECTIONS — Install drain line inaccordance with all applicable codes. A continuous pitch of1 in. per 10 ft of condensate drain l

6Fig. 2 — 42CA Furred-In Horizontal Unit with Electric Heat DimensionsLEGEND1—Junction Box (remote mount)2—Flexible Metal Conduit3 — Strip Heater Hig

6042C,D,V WATER SUPPLY/RETURN CONNECTIONS —Install piping in accordance with all applicable codes. Positionvalves over the drain pan. Be sure valves a

61Fig. 75 — Copper Water Tube and Joint Material Pressure RatingsNOTES:1. Not recommended for high system water pressures.2. Standard factory joint ma

62Table 7 — Piping ComponentsLEGEND*Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicable local

63Table 7 — Piping Components (cont)LEGEND*Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicabl

64Table 7 — Piping Components (cont)LEGEND*Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicabl

65Table 7 — Piping Components (cont)LEGEND*Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicabl

66Step 3 — Make Electrical Connections — Referto unit nameplate for required supply voltage, fan and heateramperage and required circuit ampacity. Ref

67Aquastat — The aquastat must be able to sense whether theflowing water is being chilled or heated and switches a contactclosed to provide automatic

68Fig. 81 — No Controls — Wall-Mounted 3-Speed Switch OnlyNOTES:1. Motors are thermally protected.2. Use copper conductors only.3. See unit nameplate

69Fig. 83 — 42C,S,V and 42D (600-1000) 2-Pipe Heating and Cooling with Automatic Changeover — Remote/Wall-Mounted Thermostat (Line Voltage)a42-4058120

7Fig. 3 — 42CE Furred-In Horizontal Unit with Plenum DimensionsNOTES:1. Right hand unit with standard 3-row coil shown; left hand unit opposite. Coilc

70Fig. 85 — 42C,S,V (except VG), and 42D (600-1000 cfm) 2-Pipe Heating and Cooling withAutomatic Changeover — Remote/Wall-Mounted Debonair® Thermostat

71Thermostatic 2-Pipe Auxiliary Electric Heat with ValveControl — This system, also called twilight or intermediateseason electric heat, goes a long w

72Fig. 87 — 42SG,SH,SJ,VA,VB,VC,VE,VF 2-Pipe Heating and Cooling with Auxiliary Heat — Unit-Mounted Debonair® Thermostat (24-v), Duct Sensor and Dual

73Thermostat 2-Pipe Total Electric Heat with ValveControl — With this system, the complete heating require-ment for the space is provided by the elect

74Fig. 90 — 42SG,SH,SJ,VA,VB,VC,VE,VF 2-Pipe Cooling with Total Electric Heat — Unit-Mounted Debonair® Thermostat (24-v) and Duct Sensora42-4072NOTE:

75Thermostatic Valve Control, 4-Pipe — The 4-pipe systemprovides the ultimate in economy and room temperature con-trol. Both hot water and chilled wat

76Fig. 93 — 42SG,SH,SJ,VA,VB,VC,VE,VF 4-Pipe Heating and Cooling —Unit-Mounted Debonair® Thermostat (24-v) and Duct Sensora42-4078Fig. 94 — 42C,S,V (e

77Step 4 — Make Duct Connections — Install allductwork to and from unit in accordance with project plans,specifications, and all applicable codes.

78The ECM blower is controlled by one of three controlboards, depending on the options ordered with the unit.Review project submittals or order acknow

79Variable Airflow for 0-10 Vdc Input (42SM Only) (SeeFig. 97) — Carrier recommends using the specified thermostator DDC controller to commission the

8Fig. 4 — 42CE Furred-In Horizontal Unit with Plenum and Electric Heat DimensionsNOTES:1. Right hand unit with standard 3-row coil shown; left hand un

80Start-up procedures vary depending on time of year (sum-mer or winter) and building characteristics (new building/oldbuilding, occupied/unoccupied,

81and other literature for detailed information regarding each in-dividual unit and its controls. Since controls and features mayvary from one unit to

82may be cleaned and re-installed in the unit instead of being dis-carded when dirty.1. Tap on solid surface to dislodge heavy particles.2. Wash in ho

83APPENDIX A — POTENTIOMETER ADJUSTMENTAdjusting the low, medium, and high potentiometers re-quires the use of a multi-meter capable of measuring 0~5

84APPENDIX B — EVO/ECM 4-SPEED ADJUSTMENTAdjusting the Flo1, Flo2, Flo3 potentiometers requires theuse of a multi-meter capable of measuring 0~5 vdc.1

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

9Fig. 5 — 42CG Horizontal Cabinet Unit DimensionsLEGEND1— Junction Box, 4 in. x 4 in.2— Optional Return Air Location3— Drip Lip (optional, shipped loo