Specifications

ManualsBrandsCarrier ManualsHeat Pump40KMQ

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

Catalog No. 02-40QK0001-SI Printed in U.S.A. Form 40KM-1SI Pg 1 606 3-06 Replaces: New

Book 1 4

Ta b 3 d 2 d

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

Step 1 — Complete Pre-Installation Checks . . . . . . 2

• UNPACK UNITS

• INSPECT SHIPMENT

• CONSIDER SYSTEM REQUIREMENTS

Step 2 — Locating and Mounting the Unit . . . . . . . . 6

• LOCATING THE UNIT

• MOUNTING THE UNIT

Step 3 — Locating and Mounting the Room

Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

• LOCATING THE ROOM CONTROLLER

• MOUNTING THE ROOM CONTROLLER

Step 4 — Complete Refrigerant Piping

Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

• FLARING THE ENDS OF PIPES

• PIPING CONNECTION TO THE UNIT

Step 5 — Make Electrical Connections . . . . . . . . . . 11

• UNITS WITH ELECTRIC HEATER

•POWER WIRING

• WIRING THE ROOM CONTROLLER

INSTALLATION OPTIONS. . . . . . . . . . . . . . . . . . . . . 19-23

Fresh Air Intake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Conditioned Air Supply to Adjacent Room . . . . . . 19

Room Controller Configuration Setup . . . . . . . . . . . 21

Louver Mode Selection. . . . . . . . . . . . . . . . . . . . . . . . . . 22

Main Board Configuration . . . . . . . . . . . . . . . . . . . . . . . 22

Service Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SERVICE AND MAINTENANCE . . . . . . . . . . . . . . .23,24

TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

SAFETY CONSIDERATIONS

Installing and servicing air-conditioning equipment can be

hazardous due to system pressure and electrical components.

Only trained and qualified service personnel should install or

service air-conditioning equipment.

Untrained personnel can perform basic maintenance, such

as cleaning and replacing filters. All other operations should be

performed by trained service personnel. When working on air

conditioning equipment, observe safety precautions in litera-

ture, tags, and labels attached to unit.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for brazing operations. Have fire

extinguisher available. Read these instructions thoroughly.

Consult local building codes and the National Electrical Code

(NEC) for special installation requirements.

GENERAL

These instructions cover the installation, start-up and

service of in-ceiling cassette fan coil units. See Fig. 1.

The following accessories can be used with 40KMC,KMQ

units. See the price pages part numbers and more information:

• photocatalytic and electrostatic filter with mount

• air supply outlet obstruction kit

• wired room controller

• room controller wiring kit for multiple units

• zone manager kit for multiple units

• zone manager

• infrared remote kit

Before installing or servicing system, always turn off main

power to system. There may be more than one disconnect

switch. Turn off accessory heater power if applicable. Elec-

trical shock can cause serious personal injury.

This system uses Puron® R-410A, which has higher pres-

sures than R-22 and other refrigerants. No other refrigerant

may be used in this system. All equipment must be

designed to handle R-410A refrigerant. If unsure about

equipment, consult the equipment manufacturer.

Do not operate the unit without a filter or with the grille

removed. Damage to the unit or personal injury may result.

40KMC,40KMQ018-036

In-Ceiling Cassette

Fan Coil Units

Fig. 1 — 40KMC,KMQ Unit

Summary of content (24 pages)

PAGE 1
40KMC,40KMQ018-036 In-Ceiling Cassette Fan Coil Units Installation, Start-Up and Service Instructions CONTENTS Page SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1 GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 Step 1 — Complete Pre-Installation Checks . . . . . .
PAGE 2
CONSIDER SYSTEM REQUIREMENTS — Consult local building codes and NEC for special installation requirements. Use only designated indoor units with outdoor units. See Tables 2-4B. See Fig. 2 for unit dimensions. Allow sufficient space for airflow clearance, wiring, refrigerant piping, and servicing units.
PAGE 3
1ʼ 10-5/8ʼʼ(575) 1' -10-5/8"(575) 3/8"(9) Return air 2-13/64"(56) 9 -9/16"(243) 1 -5/16"(49) 5 -5/16" (135) 32 9/ Supply air Supply air 0' -7-7/32"(158) 4"(102) Ø 2-3/14" (70) 1-11/16"(43) Ø ) 6"(153) "( 2 5- 0 15 4-3/4"(120) 8-55/64"(225) 11"(280) 11-3/4"(298) 2"(52) 2'-4-11/32"(720) 1'-9-21/32"(550) " /16 1- 330) ( 1'-8 9/32"(515) 40KMC018 Ø1"(25) 2" ) (50 1-7/8"(47) Return air 15/16"(24) Supply air Supply air 1'-11-7/16"(595) 5-29/32"(150) 40KMC024-036 / 40KMQ018-036
PAGE 4
Table 4A — 40KMC Physical Data SYSTEM SIZE NOMINAL CAPACITY (Btuh) OPERATING WEIGHT (lb) SEER REFRIGERANT* Control (Cooling) INDOOR FAN Rpm/Cfm High Rpm/Cfm Medium Rpm/Cfm Low Motor Watts Blowers Quantity...Size (in.) INDOOR COIL Face Area (sq ft) No. of Rows Fins/in. Circuits FILTERS Quantity...Size (in.
PAGE 5
Table 4B — 40KMQ Physical Data SYSTEM SIZE NOMINAL CAPACITY (Btuh) Heat Pump Cooling Heating Cooling with Electric Heat SEER HSPF OPERATING WEIGHT (lb) REFRIGERANT* Control (Cooling) Control (Heating) INDOOR FAN Rpm/Cfm High Rpm/Cfm Medium Rpm/Cfm Low Motor Watts Blowers Quantity...Size (in.) INDOOR COIL Face Area (sq ft) No. of Rows Fins/in. Circuits FILTERS Quantity...Size (in.
PAGE 6
(supplied with the unit) may be used as a guide. Depending on the type of ceiling, the hangers can be fixed as shown in Fig. 5. Once the threaded hangers have been positioned, do not tighten the nuts. Insert the washers as shown in Fig. 5. First position the refrigerant lines, as described in the Complete Refrigerant Piping Connections section. Remove the “T” bar in the ceiling to facilitate installation. See Fig. 6.
PAGE 7
Spirit Level False Ceiling 1“ to 1-3/16” Fig. 4 — Positioning Unit 2-3/4"÷3" (70/80 mm) Fig. 8 — Align and Level the Unit Outdoor 3/16"÷3/8" (5÷10 mm) Indoor Nut Washers Threaded hangers Wooden frame Nut Washer Threaded hangers Washer Nut Nut Fig. 9 — Drilling for Connections The condensate may be discharged at a maximum height of 77/8 in. above the unit, as long as the ascending tube is vertical and aligned with the drainage flange.
PAGE 8
2% 2” (50 mm) A. Gasket "A" B. Gasket "B" max. 7-7/8”(200 mm) A AIR B Fig. 10 — Condensate Drain Pipe Fig. 13 — Gasket Location Frame support brackets Step 3 — Locating and Mounting the Room Controller Electrical shock can cause personal injury and death. Shut off all power to this equipment during installation. There may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work is completed. Fig.
PAGE 9
3/4"(20mm) 2-3/4"(70mm) 4-1/4" (108mm) Fig. 14 — Room Controller Dimensions Push any excess wire into the wall and against mounting base. If the air sensor is being used on the room controller, seal the hole in the wall to prevent air leaks. Leaks can affect sensor operation. Push the room controller snap hinge to the base and tighten the side fixing screw. MOUNTING THE ROOM CONTROLLER (Fig. 15-17) — Unscrew the side fixing screw. Open the room controller rear mounting base to expose the mounting holes.
PAGE 10
Step 4 — Complete Connections Refrigerant If either refrigerant tubing or indoor coil is exposed to the atmosphere, the system must be evacuated following good refrigeration practices. Piping IMPORTANT: During unit installation make the refrigerant connections first and then the electrical connections. If the unit is uninstalled, disconnect the electrical cables first and then the refrigerant connections. Refer to the outdoor unit installation instructions for tube sizing and limitations.
PAGE 11
POWER WIRING (Fig. 21-27) — The unit is factory wired for voltage shown on nameplate. Provide adequate, fused disconnect switch within sight of unit, readily accessible, but out of reach of children. Provision for locking the switch open (off) is advisable to prevent power from being turned on while unit is being serviced. Disconnect switch, fuses, and field wiring must comply with the NEC and local code requirements. Use copper wire only between the disconnect switch and unit.
PAGE 12
Room Controller Connections Low Voltage Outdoor Unit Connections Power Connections Ground Connection High Voltage Fig.
PAGE 13
Room Controller Connections Low Voltage Outdoor Unit Connections Power Connections Ground Connection High Voltage Fig.
PAGE 14
Room Controller Connections Low Voltage Outdoor Unit Connections Power Connections Ground Connection High Voltage Fig.
PAGE 15
NOTE 5 D I S P L AY NOTE 6 T M-C O I L T M-A I R NOTE 4 M O D U L A R "D " C O N T R O L 1P C B B AR E C O P P E R T O U N IT D IS C O N N E C T (U S E C A B L E P R O V ID E D ) E Q U I P. G N D 4 0 K MC G L O B A L C A S S E T T E 38H D F O U T D O O R C O N D E N S E R NO T E 7 E Q U IP G N D 2 0 8 /2 3 0 V 1P H (S E E N O T E 9 ) T O O U T DO O R U N IT D IS C O N N E C T T O C AS S E T T E T O C AS S E T T E NO T E 8 LEGEND 1PCB 2PCB C CAP CH CHS COMP CRC DP EQUIP.
PAGE 16
NOTE 5 D I S P L AY NOTE 6 T M-C O I L T M-A I R NOTE 4 M O D U L A R "D " C O N T R O L 1P C B B AR E C O P P E R T O U N IT D IS C O N N E C T E Q U I P. G N D ( U S E C A B L E P R O V I D E D ) 4 0 K MQ G L O B A L C A S S E T T E 38H D F O U T D O O R C O N D E N S E R N O T E 7 E Q U IP G N D 2 0 8 /2 3 0 V 1P H (S E E N O T E 9 ) T O O U T DO O R U N IT D IS C O N N E C T T O C AS S E T T E T O C AS S E T T E NO T E 8 NOTES: 1.
PAGE 17
NOTE 5 D I S P L AY NOTE 6 T M-C O I L T M-A I R O U T DR DE F R O S T NOTE 4 M O D U L A R "D " C O N T R O L 1P C B B AR E C O P P E R T O U N IT D IS C O N N E C T E Q U I P.
PAGE 18
CA C LR CG CP CV C G CV CP C LR CA INTERNAL CONTROL PANEL 40KMC018 INTERNAL CONTROL PANEL 40KMC024-036 40KMC018-036 C apacitor G MC board E lectric heater board (only on models with electric heater) Transformer Holes for fixing panel in position E mergency push-button CV C LR CG CP CA Fig.
PAGE 19
WIRING THE ROOM CONTROLLER — The room controller is capable of controlling from 1 to 6 fan coil units. The total run length of the wire connecting the room controller to the fan coil units should be kept to under 500 feet. Wire the room controller to the unit using daisy chain wiring. See Fig. 28. The room controller connects to the receiver board connection on the electronic board inside the unit. Wiring the Power Connection to the Room Controller — The thermostat will be powered by unregulated nominal 12.
PAGE 20
4.14” 4.72” (105) (120) 1.93” (49) B Ø Ø C A 0” 8.5 6) 2 ( 1 Ø A Unit ØA B ØC 40KMC018 5-29/32"(150 mm) 40KMC024, 03036 40KMQ01824, 03036 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) NOTE: Dimensions in ( ) are in mm. Air intake grille Wall Undercut door Wall-fitted grille Door-fitted grille Fig.
PAGE 21
Supply air duct to adjacent room External static pressure (in.wg) 0.18 0.16 0.14 0.12 40KMC,KMQ 03036 0.1 0.08 0.06 40KMC018,024 40KMQ01824 0.04 0.02 0 50 0 150 100 200 250 Airflow (cfm) NOTE: When two louvers are closed, the fresh airflow towards the adjacent room is 50% higher than when one louver is closed (with equal static external pressure). Fig.
PAGE 22
Keep it pressed for at least 5 seconds Check the value Change the value up down Next item A To check/change the values of items 11 and 12 go back to point A up down Fig. 32 — Room Controller Configuration Steps Louver Mode Selection — To enter louver mode selection, ensure the room controller is on and then press the Fan button for 5 seconds. After 5 seconds, the selected louver setting will be displayed. Press the up and down arrows to modify the louver setting between swing and auto.
PAGE 23
Room Controller ON up Keep it pressed for 5 seconds down To change the value Automatic (AUTO) Or Continuous movement (swing) Fig. 33 — Selecting the Louver Mode Any of the following will cancel the Service Test mode: • When the unit is turned off by the controller. • If the power is cycled during the Test Mode, the unit will return to its normal operating mode. • After 30 minutes of receiving the last valid test request message. • Fail Mode. Minimum Maintenance 1.
PAGE 24
TO CLEAN OR REPLACE DRAIN PAN 1. Place a plastic sheet on the floor to catch any water that may spill from drain pan. 2. Remove the air intake and distribution assembly. Remove the condensate water in the drain pan by pulling out the rubber drain plug and letting water drain into a 3-gallon bucket. Do not use a screw driver to pry drain pan out of assembly. It could damage the pan. 3. Remove screws holding the drain pan. Carefully hold the drain pan to remove it from the assembly. 4.