40KMC / 38HDF 40KMQ / 38QRF In—Ceiling Cassette Duct—Free Split System Sizes 018 to 036 turn to the experts fF Installation Instructions SAFETY CONSIDERATIONS Improper or use installation, adjustment, can cause explosion, alteration, service, maintenance, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance.
DIMENSIONS - INDOOR 40KMC018 Adjacent Room Supply 10-5/IRST5} @ al °| =| « MWe g| .|2 =P es a = 6 Net Ta 40KMC = = = — Supply air © = air _ 2'-4-11/32"(720) _ 1'-9-21/32"(650) air Return Model | Unit Size g = abe ‘ Supply & Operating Weight Ib 49 kg 22.3 41-8 9/32"(515) 18 40KMC024-036 / 40KMQ018-036 Return INLET Model | Unit Size 40KMC 40KMQ AiR Operating PPS Ib Weight kg 024 91 414 030 / 036 95 43.2 018/024 91 414 030 / 036 95 43.
DIMENSIONS - OUTDOOR JUNCTION BOX FOR———————— POWER SUPPLY & CONTROL CONNECTIONS FIELD CONTROL K-11 1/2" (38.19 SUPPLY] . WIRE_ENTRY 2/8" (22.2) HOLE W/GROMMET SERVICE PORTS CADDITIONAL PORTS * PROVIDED INSIDE COMPRESSOR ACCESS) ! oe gt Torna ape 2042 aia L L— oad (25) fr \ | \ pe “M"DIA VAPOR LINE CONN. FEMALE SWEAT CONN. RIGHT SIDE VEIW SNOW STAND ACCESSORY “ ,| 3 9/16" TYP | 3/8” DIA. (9.
These instructions cover the installation and start-up of the systems Parts List listed in Table 2. Indoor Unit Table 2 - Matched Systems The following items are included with the indoor unit: eid Table 1 — Installation Materials Description Qty Baffle (size 18) 1 Template 1 Usage Required for fresh air intake hoe hangers, piping and wiring loca- NOTE: The grille and the User Interface are not included with unit.
Refrigerant Charge Control Wiring The 38HDF and 38ORF units can be matched with multiple outdoor units and thus additional charge might be required when matched with the 4OKMC or 40KMO units. Thermostat wires should be used for control wiring between the indoor and outdoor units. A two conductor cable is required for the cooling only units and a seven conductor cable is required on heat pumps. 18 AWG is recommended for any length up to 50 ft (15.2 m).
INSTALLATION Complete Pre-installation Checks bo 1. Unpack Unit - Store the indoor and outdoor units in the original packaging until it is moved to the final site for installation. When unpacking indoor unit, be careful not to lift unit by condensate drain discharge pipe or by refrigerant connections. NOTE: If the mounting location is in a plaster board ceiling, the maximum dimensions of the unit housing cutout must not exceed 2 ft, 2 in. (0.66 mm) square for the 40KMC018 units and 2 ft. 11 in. (0.
INSTALL OUTDOOR UNIT f. Use a stacker to lift the unit to the installation location. See Fig. 10. The outdoor units can be installed on the ground, on the roof, or mounted on a wall. NOTE: Install the unit so that the coil does not face into prevailing winds. If this is not possible and constant wind winds above 25 mph are expected, use accessory wind baffle. See installation instructions provided with accessory kit.
Mounting Unit on Wall Connection at Outdoor Unit The units can also be mounted mounting kit. on the wall using the accessory Complete Outdoor Refrigerant Piping Connections Follow the following general guidelines: 1. Use refrigerant grade field — supplied tubing. Refer to Table 4 for the correct line sizes. 2. Do not use less than tubing. 10 ft (93.05 m) of interconnecting UNIT DAMAGE HAZARD Failure to follow this caution may result in equipment damage or improper operation.
38QRF Units & 1. Assemble the connector tubes to the factory supplied filter drier by brazing the factory supplied flare connectors to the inlet and outlet for the filter drier (see Fig. 16) ist COPTIONAL) (DRIER Unit failure as a result of operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components. Such operation could void any applicable Carrier warranty.
Control Wiring The control circuit is 24 volts AC (minimum 40VA) supplied from the indoor unit. 2. Route one end of the control wiring through the opening Pp rovided in the unit side Pp panel and connect to the control terminal strip using either Fig. 19 for 33HDF units and Fig. 20 for 38ORF units. 1. Make sure you have enough control wires to cover the distance between the indoor and outdoor unit. Indoor Terminal Board Indoor Indoor Board ~ Board i ae ae \ \ Indoor Terminal Board Outdoor Termina
ELECTRICAL DATA Table 10 —38HDF/38QRF Electrical Data 38HDF/38QRF UNIT SIZE V-PH-Hz ven COMPRESSOR VOLTAGE RANGE* Min Max OUTDOOR FAN MOTOR RLA LRA FLA NEC Hp FUSE/ MIN CKT kW Out CKT AMPS BKR AMPS 018 208/230 —1-60 187 253 9.0 48.0 0.80 0.125 0.09 12.4 20 024 208/230 —1-60 187 253 12.8 58.3 0.80 0.125 0.09 16.8 25 38QRF030 208/230 —1-60 187 253 14.4 73.0 1.50 0.25 0.19 18.4 30 38HDFO30 208/230 —1-60 187 253 14.4 73.0 0.80 0.125 0.09 18.
DISPLAY PCB @ SLON 2PCB Odo 1 2 sfa[s]e|a TM-COIL TM-AIR MODULAR “D” CONTROL 1PCB S SLoN & ~ GRA/YEL-[F15+ GRN/YEL- oe TO UNIT DISCONNECT (USE CABLE PROVIDED) EQUIP. GND 40KMC GLOBAL CASSETTE ~ 38HDF OUTDOOR aLk YEL ° BLK we NOTE 8 — Spo CHS me cout ovo Spe BLK a of am 208/230 2 1PH \(SEE NOTE 103 ouTsoon NIT RR dal gm | DISCONNECT K BLU ct BLK aly —____} co ORN/YEL, 1 8s t YEL COMP Ws Wy i.
IL TM-AIR v/ YELLS ake —8]0— cS aLK BLK LL: $ PO GRN/YEL: BLK He s PL —9— BL bagaL RATIONAL, zc AND LOCAL Ci 3. Compressor and fan motors are protected by intemal thermal averloads. 4. cOMPRE conpne: AND FAN HOTORS ARE PROTEC ALO NSFORMER HAS INTERNAL 24 THERON, FUSE 08 TEMPERATURE oF of 50058 Fig.
OW L ALON or COMM 3 BLON RAYEL ate [Tf om ah ee a ORR/YEL GRN/YEL: LECHTa HO] o}" xe 2E-HTR SEHTR 8 LEL2L2 LI PE PE 4E-HTR POGO9OD BLK pee | OL ceneveL-- | | T : | I ¢ CHR, CORES, joressor and fan plotors are protected by internal thermal overloads, MPRESEOR AND FAN MOTORS ARE PROTECTED BY INTERNAL INPERNAL, 25 THERMAL TERMINAL GYARKED? TERHINSL GRBARKED? WIRERS OPPLONAL WERING TEMPERATURE °F 1cal Fig.
Run Power Wiring for Indoor Unit Be sure field wiring complies with local building codes and NEC, and unit voltage is within limits shown in Table 11 and Table 12. Contact voltage. local power ELECTRICAL company for correction of improper line SHOCK HAZARD NOTE: Use copper wire only between and unit. disconnect switch(es) NOTE: Install branch circuit disconnect of adequate size to handle unit starting current per NEC.
Room Controller Connections foley Ae | | | y—oN Outdoor Unit Os@OsOsOsOs©ce OnCniCnenenene boc; | | C) <—Veltage CI VN | : | | Ground Connection —a ri Connections |" | | I tt | | <——_ Voltage A07208 Fig.
( > !! aft Solio || || S © 2 oo! : © © © " og OWS) 7 || © | | Room Controller m Connections | | || | | I | ' EI | ms EI CI CE) QOIODAOQAIOD AOA || OCTNTIT Stage <— Valage | EI ( | | ‘i IG CI <—\ TROT OIA TET TET EI SO ' | Outdoor Unit | Connections he o 1 || I | oa p> {| J U Connections | | C) | I, seme“ Connection lll U | | | | os || | | LL i= | | || A07209 Fig.
7. Connect L1 to the black wire and L2 to the red wire using wire nuts and fix the ground wire between the two washers. d. Lubricate the end of the pipe and thread of the flare connection with refrigerant oil. Tighten by hand and then use two wrenches (see Fig. 28) to tighten all connections fully applying the tightening torque shown in Table 13. The internal control panel can be accessed by opening the grille and removing the metal cover attached by four screws.
a. Use hard polyvinyl chloride (PVC) pipe material with nominal ID of 1 in. to connect at drain line. To ensure correct condensate water flow, the pipe should have a gradient of 2% without obstruction. See Fig. 30 b. A trap of at least 2 in. (51 mm) in depth should be made to prevent unpleasant odors from reaching the room. . Insulate condensate pipe with condensation proof material such as polyurethane, propylene, or neoprene of 3/16 in. to 3/8 in. thickness. . Complete Control Wiring PERSONAL a.
b. Wireless Remote Control The unit is factory equipped with a wire harness that has one end connecting to the receiver board (Display PCB) and the other end is loose. See Fig. 32. B alo &|O wlol|* nN} DISPLAY PCB |cpip-y ob} 5— 2Pcb JI s[4]3]2|i ~ 3 2 | 1S “12 SpLE-2 C Spans 6 B gigigisig ee Rte + HIN [MH 1M | LITT COMM Loose End O TB2 @Lk | BLK ia 7|6]s]4]al2|1 ']2]3]als 1f2[a]4]s Ji J8 J5 A09547 Fig.
If you have two units installed in the same space and they need to work independently, the remote controls and the units need to be configured as follows: Unit Configuration Turn the unit off by pressing the O} Press and hold the M Zone Manager If a Zone Manager is required, the following steps should be performed at the same time the indoor control and power wiring are being connected: a. Remove the cover of the Internal Control Panel to get access to the microprocessor board. See Fig. 33.
6. Conduct a final check to make sure that the unit is level 7. Install the Grille and Frame Assembly a. Carefully unpack the assembly and check for damage sustained in transport. b. Attach the assembly to the unit by using the two hooks. See Fig. 35. Frame support brackets NOTE: Gasket “A” prevents return air from mixing with the supply air and gasket “B” prevents the supply air from leaking into the ceiling void.
4.14" 4.72 (105) (120) (49) 1.93 Unit BA B oC NOTE: Dimensions 40KMCO18 @ ® Duct connection flange Clip @® 1/4” (6 mm) neoprene gasket @® Insulated flexible duct ® Fresh air intake © Conditioned air supply to an adjacent room @ Polystyrene partition Baffle (40KMC018 Only) @® Frame 40KMC024, 03036 40KMOQ01824, 03036 5-29/32"(150 mm) | 5-29/32"(150 mm) 4-3/4"(120 mm) 4-3/4"(120 mm) 2-3/4"(70 mm) | 3+15/16"(100 mm) in ( ) are in mm.
START-UP Outdoor Refrigerant Unit Preliminary Checks bo 1. Make tight. Indoor Unit Low Side sure all wiring connections are correct and they are . Field electrical power plate rating. source must agree with unit name Service Valve 07360 3. Check that all barriers, covers, and panels are in place. Ensure that the filters and return-air grilles on the indoor unit have been installed and that the discharge louvers are positioned correctly. Fig. 40 - Service Valve Manifoid Gage 4.
. Close service valves and shut off vacuum pump. Ww . Connect a nitrogen cylinder and regulator to system open until system pressure is 2 psig. and 4. Close service valve and allow system to stand for 1 hr. During this time, dry nitrogen will be able to diffuse throughout the system absorbing moisture. 5. Repeat this procedure as indicated in Fig. 43. System will then be free of any contaminants and water vapor.
O6 0 oa o So UNIT DAMAGE 0a o O00 So HAZARD Failure to follow this caution damage or improper operation. @o 3 VB may result in equipment Operating the system with dirty air filters may damage the indoor unit and can cause reduced cooling performance, intermittent system operation, frost build-up on the indoor coil, and blown fuses. Inspect and clean or replace the air filters monthly. A09552 Fig.
¢ Buzzer beeps When the unit is ON and the Emergency button is pressed for 5 seconds, the unit will operate as follows: ¢ The unit is turned off ¢ Buzzer beeps When a signal is received by the remote control, the unit operates accordingly. A09553 Fig. 45 - Warning Lamps and Emergency Button Table 15 — Troubleshooting PROBLEM POSSIBLE CAUSE SOLUTION Unit not energized Check the main power connection.
Copyright 2010 Carrier Corp. * 7310 W. Morris St. * Indianapolis, IN 46234 Printed in U.S.A. Edition Date: 12/10 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
