Page 2 - PHYSICAL DATA; Table 1 — Physical Data — 42C Series Units; *Calculate Operating Weight of Unit: Shipping Weight + Coil Water
2 contact your local sales representative or the factory BEFORE proceeding. This document contains general installation instructions for the 42C,D,S,V unit fan coils. Refer to the unit wiring diagram installed on the blower housing or specific manufacturer litera- ture for any other type of factory-...
Page 4 - Table 4 — Physical Data — 42S Series Units; Unpack and Inspect Units —
4 Table 4 — Physical Data — 42S Series Units *Calculate Operating Weight of Unit: Shipping Weight + Coil Water Weight x Number of Coil Rows.†42SJ units require two filters. PRE-INSTALLATION Unpack and Inspect Units — All units are carefully inspected at the factory throughout the manufacturing proce...
Page 5 - Fig. 1 — 42CA Furred-In Horizontal Unit Dimensions; LEGEND
5 Fig. 1 — 42CA Furred-In Horizontal Unit Dimensions LEGEND 1 — Junction Box (remote mount) 2 — Flexible Metal Conduit 3 — Drain Conn, 7 / 8 -in. OD 4 — Tell-Tale Drain Conn, 5 / 8 -in. OD (optional) 5 — Drip Lip (optional, shipped loose) 6 — Hanger Slots (4), Rubber Grommethas 3 / 8 -in. Diameter H...
Page 7 - Fig. 3 — 42CE Furred-In Horizontal Unit with Plenum Dimensions
7 Fig. 3 — 42CE Furred-In Horizontal Unit with Plenum Dimensions NOTES:1. Right hand unit with standard 3-row coil shown; left hand unit opposite. Coil connection locations are ± 5 / 8 -inch. 2. Unit sizes 02 and 03 have one motor, one blower; sizes 04 through 08 have one motor, 2 blowers; sizes 10 ...
Page 9 - Fig. 5 — 42CG Horizontal Cabinet Unit Dimensions
9 Fig. 5 — 42CG Horizontal Cabinet Unit Dimensions LEGEND 1 — Junction Box, 4 in. x 4 in. 2 — Optional Return Air Location 3 — Drip Lip (optional, shipped loose) 4 — Mounting Holes (4), Rubber Grommetshave 3 / 8 -in. Diameter Hole 5 — Electrical Knockout, 7 / 8 -in. Diameter 6 — Return Knockout, 1-i...
Page 10 - Fig. 6 — 42CG Horizontal Cabinet with Electric Heat Dimensions
10 Fig. 6 — 42CG Horizontal Cabinet with Electric Heat Dimensions LEGEND 1 — Junction Box, 4 in. x 4 in. 2 — Optional Stamped Rear Return Grille 3 — Drip Lip (optional, shipped loose) 4 — Electric Strip Heater Element 5 — Mounting Holes (4), Rubber Grommetshave 3 / 8 -in. Diameter Hole 6 — Electrica...
Page 17 - UNIT
17 Fig. 13 — 42VA Furred-In Vertical Unit Dimensions FRONT VIEW *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE DIMENSIONS (in.) QTY/UNIT UNIT WEIGHT* (lb) A B C D Blower Motor 02 24 3 / 16 22 23 16 1 1 42 03 24 3 / 16 22 23 1...
Page 18 - Fig. 14 — 42VA Furred-In Unit with Electric Heat Dimensions
18 Fig. 14 — 42VA Furred-In Unit with Electric Heat Dimensions a42-4382 *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE DIMENSIONS (in.) QTY/UNIT UNIT WEIGHT* (lb) A B C D Blower Motor 02 24 3 / 16 22 23 16 1 1 42 03 24 3 / 16...
Page 19 - Fig. 15 — 42VB Vertical Cabinet Unit Dimensions
19 Fig. 15 — 42VB Vertical Cabinet Unit Dimensions a42-4383 *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE DIMENSIONS (in.) QTY/UNIT UNIT WEIGHT* (lb) A B C D E Blower Motor 02 41 22 23 17 1 / 4 3 1 / 8 1 1 63 03 41 22 23 17 ...
Page 21 - Fig. 17 — 42VF Vertical Cabinet Unit with Slant Top Dimensions
21 Fig. 17 — 42VF Vertical Cabinet Unit with Slant Top Dimensions *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE DIMENSIONS (in.) QTY/UNIT UNIT WEIGHT* (lb) A B C D E Blower Motor 02 41 22 23 17 1 / 4 3 1 / 8 1 1 64 03 41 22 ...
Page 23 - Fig. 19 — 42VC Furred-In Lowboy Unit Dimensions
23 Fig. 19 — 42VC Furred-In Lowboy Unit Dimensions LEGEND 1 — Optional Unit Mounted Control Box 2 — Drain Pan, Auxiliary, Shipped Loose 3 — Supply Conn, 5 / 8 -in. OD 4 — Drain, 3 / 4 -in. MPT 5 — Return Conn, 5 / 8 -in. OD 6 — Air Vent, 1 / 8 -in. MPT 7 — Discharge Opening 8 — Filter *Unit weights ...
Page 24 - Fig. 20 — 42VC Furred-In Lowboy Unit with Electric Heat Dimensions
24 Fig. 20 — 42VC Furred-In Lowboy Unit with Electric Heat Dimensions LEGEND 1 — Unit-Mounted Control Box (Optional) 2 — Drain Pan, Auxiliary, Shipped Loose 3 — Air Vent, 1 / 8 -in. MPT 4 — Supply Conn, 5 / 8 -in. OD 5 — Drain, 3 / 4 -in. MPT 6 — Return Conn, 5 / 8 -in. OD 7 — Filter 8 — Electrical ...
Page 25 - Fig. 21 — 42VE Cabinet Lowboy Unit Dimensions
25 Fig. 21 — 42VE Cabinet Lowboy Unit Dimensions *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE NOM AIRFLOW (Cfm) DIMENSIONS (in.) QTY/UNIT FACE AREA (sq ft) UNIT WEIGHT* (lb) A B C D Blower Motor 02 200 41 22 3 3 / 4 17 2 1 ...
Page 26 - Fig. 22 — 42VE Cabinet Lowboy Unit with Electric Heat Dimensions
26 Fig. 22 — 42VE Cabinet Lowboy Unit with Electric Heat Dimensions *Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE NOM AIRFLOW (Cfm) DIMENSIONS (in.) QTY/UNIT FACE AREA (sq ft) UNIT WEIGHT* (lb) A B C D Blower Motor 02 200 41...
Page 27 - Fig. 23 — 42VG Furred-In Wall Unit Dimensions
27 Fig. 23 — 42VG Furred-In Wall Unit Dimensions LEGEND 1 — Supply Conn, 5 / 8 -in. OD 2 — Air Vent, 1 / 8 -in. MPT 3 — Filter 4 — Return Air Grille, Stamped 5 — Stamped Supply Grille 6 — Return Conn, 5 / 8 -in. OD 7 — Removable Front Panel 8 — Drain Conn, 7 / 8 -in. OD 9 — Auxiliary Drain Pan 10 — ...
Page 28 - Fig. 24 — 42DA Furred-In Ceiling Unit with Electric Heat Dimensions
28 Fig. 24 — 42DA Furred-In Ceiling Unit with Electric Heat Dimensions UNIT SIZE NOM AIRFLOW (cfm) DIMENSIONS (in. ± 1 / 8 ) QTY/UNIT UNIT WEIGHT* (lb) A A’ B D’ E H Blower Motor 06 600 23 32 14 13 1 / 2 17 18 1 / 2 1 1 64 08 800 28 37 19 13 1 / 2 22 23 1 / 2 1 1 79 10 1000 32 42 23 14 1 / 2 26 27 1...
Page 30 - Blower
30 Fig. 26 — 42DD Vertical Unit with Full Casing and Electric Heat Dimensions UNIT SIZE NOM AIRFLOW (cfm) DIMENSIONS (in. ± 1 / 8 ) QTY/UNIT UNIT WEIGHT* (lb) A B C Blower Motor 06 600 23 21 15 1 1 135 08 800 28 26 20 1 1 145 10 1000 32 30 24 1 1 155 12 1200 37 35 29 2 2 180 14 1400 42 40 34 2 2 190...
Page 33 - Fig. 29 — 42SG Furred-In Stack Dimensions
33 Fig. 29 — 42SG Furred-In Stack Dimensions 24 †Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE NOM AIRFLOW (cfm) DIMENSIONS (in.) UNIT WEIGHT† (lb) Single Supply Double Supply Top Supply E G H I A B A B C D 03 300 14 8 14 6 1...
Page 34 - Fig. 30 — 42SH Cabinet Dimensions
34 Fig. 30 — 42SH Cabinet Dimensions 23 22 21 20 19 †Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE NOM AIRFLOW (cfm) DIMENSIONS (in.) UNIT WEIGHT† (lb) Single Supply Double Supply C D E F G A B A B 03 300 14 8 14 6 17 22 3 / ...
Page 36 - Fig. 32 — 42SGM Furred-In Master Stack Dimensions
36 Fig. 32 — 42SGM Furred-In Master Stack Dimensions 24 †Unit weights are based on dry coils and minimum rows. Weights exclude packaging, valves, and other components. UNIT SIZE NOM AIRFLOW (cfm) DIMENSIONS (in.) UNIT WEIGHT† (lb) Single Supply Double Supply Top Supply E G H I A B A B C D 03 300 14 ...
Page 37 - Fig. 33 — 42SGS Furred-In Slave Stack Dimensions
37 Fig. 33 — 42SGS Furred-In Slave Stack Dimensions 23 *Drawing provided for reference only. Dimensions may vary with options ordered.NOTES: 1. Units are fabricated of 18-gage galvanized steel with a 16-gage galvanized fan deck. 2. All risers are insulated with closed cell insulation. 3. Thermostats...
Page 38 - Fig. 34 — 42SU Universal Furred-In Stack Dimensions; DETAIL SIDE VIEW
38 Fig. 34 — 42SU Universal Furred-In Stack Dimensions 8 (203) 51 (1295) I E 19 8 14 23 15 22 10 11 9 3 5 2 E 63 (1600) 21 12 13 17 7 6 16 A B F 39 (991) 5 (127) 1-1/4 (32) 4 (102) 88 (2235) H R H S C R C S D 1-1/4 (32) H C H HR CR CS HS D 3-5/8 (92) 3-5/8 (92) 3 (76) 3 (76) 4 1-1/4 (32) 20 18 1 DET...
Page 39 - Fig. 35 — 42SU Universal Furred-In Stack with Heater Dimensions; TOP VIEW
39 Fig. 35 — 42SU Universal Furred-In Stack with Heater Dimensions 6 5 8 (203) 51 (1295) I E 21 10 16 25 17 24 12 13 11 3 7 2 E 63 (1600) 23 14 15 19 9 8 18 A B F 39 (991) 5 (127) 1-1/4 (32) 4 (102) 88 (2235) H R H S C R C S D 1-1/4 (32) H C H HR CR CS HS D 3-5/8 (92) 3-5/8 (92) 3 (76) 3 (76) 4 1-1/...
Page 40 - Fig. 36 — 42SM Mega Furred-In Stack Dimensions; CR —
40 Fig. 36 — 42SM Mega Furred-In Stack Dimensions 30 (762) 28 (711) SWT X 37.5 FLAREADAPTER ACOUSTICALSERVICEACCESS PANEL FLEXIBLE DRAIN TUBE/P-TRAP FILTER RISER KNOCKOUTS (OPTIONAL) RETURN AIR PANEL DRAIN PAN SUPPLY AIROPENING CONTROL BOX COIL MOTOR/BLOWER,3 SPEED, PSC, HIGH STATIC 24 (610) 5 (127)...
Page 43 - per building code; SIDE VIEW; Minimum; Fig. 39 — Clearance Recommendations
43 b. Use rods and fasteners to suspend the unit at the factory-provided 0.375-in. hanger slots (4) with rubber grommets on the top of the unit on the 42CA and CE units. NOTE: The four mounting holes and hanger slots with rubber grommets are NOT for balancing unit. 6. The 42CA units without plenums ...
Page 44 - Unit with Standard and Siamese Risers
44 42D UNITS 1. Select the unit location. Allow adequate space for free air circulation, service clearances, piping and electrical con- nections, and any necessary ductwork. For specific unit dimensions, refer to the submittal drawings. Allow clear- ances according to the local and national electric...
Page 45 - Fig. 41 — 42SJ Wall Board Installation; Fig. 42 — 42SJ Unit Installation; CAUTION
45 c. If not already installed, install the floor and ceiling tracks up to and over the 42SJ fan coil unit. d. Position the vertical studs and fasten into each of the stud pockets formed into the chase side panels (see Fig. 41).NOTE: The studs may be mechanically fastened to the 42SJ fan coil. Care ...
Page 46 - Fig. 43 — 42SU Unit Configuration
46 8. Anchor risers as required: a. Do not fasten risers rigidly within each unit. Risers must be free to move within pipe chase in response to normal vertical expansion and contraction. The unit internal piping is designed to accommodate a total riser vertical movement of± 3 / 4 in., due to thermal...
Page 47 - EXTENSION LENGTH; Fig. 46 — Remove 42SU Unit Knockouts
47 2. Locate and mark the riser and drain knockouts that apply to your particular unit application, ensuring proper orien- tation of the return air opening in room. 3. Insert a flat head screw driver into knockout slot shown in Fig. 46. 4. Pry screw driver back and forth until knockout tabs break aw...
Page 48 - Table 6 — Unit Riser Orientation; TOP; Fig. 48 — Riser Extension; CABINET; Fig. 49 — Brazed Riser Orientation
48 Table 6 — Unit Riser Orientation 6. Insert cut riser extensions into the bottom swages of the risers to a penetration depth of 2-inches. 7. Invert the riser with extension to allow for an easier braze. Make the braze joint according to local building code specifications. 8. Identify and orient th...
Page 49 - Fig. 52 — 42SU Unit Riser to Unit Installation
49 which 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 Installation 1. After the applicable supply, return, and drain knockouts have been removed, carefully position the unit so that the riser ball valves pen...
Page 50 - Fig. 54 — 42SU Unit Supply Air Installation; Fig. 55 — 42SU Supply Air Installation; Fig. 56 — 42SM Unit Installation
50 debris into the unit valve packages. This will also allow risers to be drained down after testing in the winter to avoid freeze-up problems. In the event that leaking or de- fective components are discovered, the sales representa- tive must be notified BEFORE any repairs are attempted. All leaks ...
Page 51 - Fig. 59 — 42SM Riser to Unit Installation
51 Submittals and product literature detailing unit operation, controls, and connections should be thoroughly reviewed BE- FORE beginning the connection and testing of risers and piping. The supply and return connections are marked on the coil stubouts and the valve package depending on your configu...
Page 52 - Fig. 60 — 42SM Riser to Drain Installation; Fig. 61 — 42SM Unit Knockout Locations; Fig. 62 — 42SM Unit Knockout Locations
52 12. Test for leaks. Any and all leaks should be repaired before proceeding with installation. When testing with air or some other gas, it might be necessary to tighten stem packing nuts on some valves to maintain air pressure in the riser. Pressure testing risers with water should be done with th...
Page 53 - Step 2 — Make Piping Connections —; Fig. 63 — 42SM Unit Supply Air Installation
53 10. Use adhesive or glue to re-attach insulation that has pulled away from the unit during knockout removal process. 11. For ducted applications tape should be applied along and around all of the supply air opening knockouts to prevent air leakage. Step 2 — Make Piping Connections — Access to pip...
Page 54 - Fig. 66 — Pipe Connection Configurations; Valve packages for standard 2-pipe units are piped for same end; CW —
54 NOTE: Chilled water piping determines the hand of the unit. Fig. 66 — Pipe Connection Configurations NOTE: Chilled water piping determines the hand of the unit. SAME END CONNECTION OPPOSITE END CONNECTION Valve Packages For 2-Pipe Systems — Valve packages for standard 2-pipe units are piped for s...
Page 55 - Pipe to stub connections at the side of unit.; or; into optional piping compartment. Optional piping compart-; HYDRONIC COIL ARRANGEMENT; VERTICAL FLOOR UNITS — 42VA, VC; Pipe to connections extending from end of unit.; VERTICAL UNITS — 42DD; Pipe to stub connections extending from side of unit.
55 Fig. 67 — Piping Connection Positions FIELD PIPING CONNECTIONS* WALL UNITS, FURRED-IN Pipe to stub connections at the side of unit. or into optional piping compartment. Optional piping compart- ment is required if valves are factory installed. Factory-installedvalve package is limited to one 2-wa...
Page 56 - Fig. 68 — Symbols and Placement of Valves
56 Fig. 68 — Symbols and Placement of Valves a42-213tf Coil Connections (Positions A & B) — When isolation valve only is added to supply or return line, the isolation valve will be factory brazed to the coil stub-out. Addition of any other component or connection to the supply or return line wil...
Page 57 - Fig. 69 — Two-Way Motorized Control Valve Package; imitations and flow rate prior to selecting valve package; COIL; Electric Heat
57 BALL VALVE BALL VALVE (2) BALL(1) 2-WAY MOTORIZED R S COIL BALL VALVE (WITH MEMORY STOP) BALL VALVE (2) BALL (ONE WITHMEMORY STOP)(1) 2-WAY MOTORIZED R S COIL MOTORIZED 2-WAY VALVE M MOTORIZED 2-WAY VALVE M M Fig. 69 — Two-Way Motorized Control Valve Package The 2-way motorized valve motor drives...
Page 58 - Fig. 71 — Three-Way Motorized Control Valve Package
58 CIRCUIT SETTER (1) BALL(1) CIRCUIT SETTER(1) 3-WAY MOTORIZED COIL BALL VALVE GATE SHUT OFF VALVE (1) GATE(1) BALL(1) 3-WAY MOTORIZED R S COIL BALL VALVE BALL VALVE (2) BALL(1) BALANCING(1) 3-WAY MOTORIZED R S COIL MOTORIZED 3-WAY VALVE BYPASS BALANCINGVALVE MOTORIZED 3-WAY VALVE BYPASS (1) BALL(1...
Page 59 - Fig. 72 — Valve Package without Motorized Control; Fig. 73 — Typical Drain Line Details
59 42C,D,V DRAIN CONNECTIONS — Install drain line in accordance with all applicable codes. A continuous pitch of 1 in. per 10 ft of condensate drain line run is necessary for adequate condensate drainage. Insulate the drain line to prevent sweating. Extend the drain line straight from the drain pan ...
Page 60 - Fig. 74 — “P” Trap Minimum Configuration
60 42C,D,V WATER SUPPLY/RETURN CONNECTIONS — Install piping in accordance with all applicable codes. Position valves over the drain pan. Be sure valves are in proper operat- ing position and are easily accessible for adjustment. See Fig. 69-72. Refer to Fig. 75 for copper water tube and joint materi...
Page 61 - Fig. 75 — Copper Water Tube and Joint Material Pressure Ratings; JOINT MATERIALS; THE ABOVE CHART IS FOR; Check all system component
61 Fig. 75 — Copper Water Tube and Joint Material Pressure Ratings NOTES: 1. Not recommended for high system water pressures.2. Standard factory joint material. JOINT MATERIALS A 50-50 Lead-Tin at 200 F Note 1 D 95-5 Tin-Antimony at 200 F Note 2 B 50-50 Lead-Tin at 150 F E 95-5 Tin-Antimony at 150 F...
Page 62 - Table 7 — Piping Components; DX; Direct Expansion; ETO —; Engineering to Order
62 Table 7 — Piping Components LEGEND *Check all system component pressure ratings (coils, values, pumps, etc.) with manufacturer and any applicable local or nationalpiping codes prior to specifying system pressure rating. SYMBOL/SKETCH DESCRIPTION C V FACTOR RATING* STEAM USE 1 / 2 3 / 4 PSI F MANU...
Page 64 - DESCRIPTION; Coefficient of Velocity
64 Table 7 — Piping Components (cont) LEGEND *Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicable local or nationalpiping codes prior to specifying system pressure rating. SYMBOL/SKETCH DESCRIPTION C V FACTOR RATING* STEAM USE 1 / 2 3 / 4 PSI ...
Page 65 - Modulating valves are designed to
65 Table 7 — Piping Components (cont) LEGEND *Check all system component pressure ratings (coils, values,pumps, etc.) with manufacturer and any applicable local or nationalpiping codes prior to specifying system pressure rating. SYMBOL/SKETCH DESCRIPTION C V FACTOR RATING* STEAM USE 1 / 2 3 / 4 PSI ...
Page 66 - Step 3 — Make Electrical Connections —; Fig. 76 — Field Piping Connections; Fig. 78 — High Voltage Power Connection; Incoming Power; Fig. 79 — High Voltage Wiring Service Switch
66 Step 3 — Make Electrical Connections — Refer to unit nameplate for required supply voltage, fan and heater amperage and required circuit ampacity. Refer to unit wir- ing diagram for unit and field wiring. See Fig. 77-79. Since each project is different and each unit on a project may be different,...
Page 68 - Unit-mounted thermostats are not recommended; Automatic Changeover — Unit-Mounted Thermostat (Line Voltage); NEC CLASS 1 WIRING
68 Fig. 81 — No Controls — Wall-Mounted 3-Speed Switch Only NOTES: 1. Motors are thermally protected.2. Use copper conductors only.3. See unit nameplate for power supply. Provide disconnect means and overload protection asrequired. 4. Unit-mounted thermostats are not recommended for fan control beca...
Page 69 - Unit-Mounted Debonair
69 Fig. 83 — 42C,S,V and 42D (600-1000) 2-Pipe Heating and Cooling with Automatic Changeover — Remote/Wall-Mounted Thermostat (Line Voltage) a42-4058 120-V WHT ALL OTHERS BLK ' NEC CLASS 1 WIRING Fig. 84 — 42SG,SH,SJ,VA,VB,VF 2-Pipe Heating and Cooling with Automatic Changeover — Unit-Mounted Debona...
Page 70 - Automatic Changeover — Remote/Wall-Mounted Debonair; NEC CLASS 2 WIRING
70 Fig. 85 — 42C,S,V (except VG), and 42D (600-1000 cfm) 2-Pipe Heating and Cooling with Automatic Changeover — Remote/Wall-Mounted Debonair ® Thermostat (24-v) a42-4061 NEC CLASS 2 WIRING
Page 72 - Auxiliary Heat — Remote/Wall-Mounted Debonair
72 Fig. 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 Power Source QUICK CONNECT 33 GG2/(W)G3/(Y)COM FAN (VALVE) (COOL) HI (HEAT) MED LOW TRANSFORMER 24 ORG YEL WHT/RED BLK VALVE BLK Q/C BLK YEL YEL YEL...
Page 78 - RR; COMMON
78 The ECM blower is controlled by one of three control boards, depending on the options ordered with the unit. Review project submittals or order acknowledgement to determine which ECM control scheme the unit has. Alter- natively, match the control board to the illustrations iden- tified in the Con...
Page 79 - Fig. 97 — ECM Proportional Speed Board; POTS; Fig. 98 — 3-Speed Potentiometer Adjustment; Fig. 99 — ECM Proportional Speed Board
79 Variable Airflow for 0-10 Vdc Input (42SM Only) (See Fig. 97) — Carrier recommends using the specified thermostat or DDC controller to commission the unit whenever possible. However, the blower can be started and operated without the thermostat. To do so, locate the airflow adjustment screw which...
Page 80 - Table 8 — Water Quality Concentrations; Controls Operation —; Fig. 100 — Manual Air Vent; Less than 10 ppm
80 Start-up procedures vary depending on time of year (sum- mer or winter) and building characteristics (new building/old building, occupied/unoccupied, etc.) Start-up in the cooling mode requires that proper care be given to avoid condensation problems. Condensation forms on surfaces that are colde...
Page 83 - APPENDIX A — POTENTIOMETER ADJUSTMENT
83 APPENDIX A — POTENTIOMETER ADJUSTMENT Adjusting the low, medium, and high potentiometers re- quires the use of a multi-meter capable of measuring 0~5 vdc. 1. Only trained and qualified individuals should attempt to adjust or service components on any electrical compo- nent. Failure to follow safe...
Page 87 - I. Project Information
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53420010-01 Printed in U.S.A. Form 42-5SI CL-1 1-14 Replaces: 42-4SI START-UP CHECKLIST FOR 42C,D,S,V SERIES FAN COIL AIR CONDITIONERS I. ...
Carrier 58CTA09010016
User Manual