Carrier 38QE User Manual download pdf

KEATING A COOLING

38QE/40QE

Advanced Technology

Heat Pump System

Installation Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

GENERAL OPERATION AND USAGE

APPLICATION LIMITATIONS

ORIENTATION AND LOCATION OF EQUIPMENT

Step 1 Inspect equipment and job site

Step 2 Install outdoor fan coil section (38QE924 or

38QE936)

Step 3 Install indoor compressor section (38QE024 or

38QE036) '

Step 4 Install domestic water heating control box

Step 5 Install domestic water heating tank temperature

fitting

Step 6 Install thermostat

Step 7 Install indoor fan coil (40QE024, 40QE036 or

40QEH036)

(refer to installation instruction supplied with

indoor unit)

Step 8 Install other accessories

PIPING CONNECTIONS

Step 9 Install refrigerant piping

Step 10 Install domestic hot water piping

ELECTRICAL CONNECTIONS

Step 11 Install control and sensor wiring

Step 12 Install thermostat wiring

Step 13 Install power wiring

SYSTEM SET-UP ADJUSTMENTS

Step 14 Inspect Indoor blower speed settings

Step 15 Adjust domestic water heating tank thermostat

settings

Step 16 Configure thermostats

Step 17 Adjust Refrigerant Charge

SAFETY CONSIDERATIONS

Installing and servicing air conditioning equipment can be

hazeurdous due to system refrigerant pressures and electrical

components. This is especially true with variable speed type

equipment, since HIGH VOLTAGE COMPONENTS

REMAIN ENERGIZED AFTER THE UNIT MAIN DIS

CONNECT IS OPENED!

A DANGER

A high-voltage (300-VDC) circuit remains energized

after the main disconnect is opened. The normal capaci

tive discharge time is 10 minutes, but this period may

be extended indefinitely by component failure. Before

servicing components within the compressor section

power box, always check with a DC voltmeter across

the D.C. Capacitor. Electrical shock can cause personal

injury or death.

For the above reasons, installation and servicing MUST BE

conducted only by a Carrier installer/dealer specifically

trained to service variable speed equipment. Improper

installation, adjustment, alteration, service, maintenance,

or use can cause explosion, fire, electrical shock or other

conditions which may cause personal injury or property

damage. Consult a qualified installer, service agency or your

distributor or branch for information or assistance. The

qualified installer or agency must use factory authorized

kits or accessories when modifying this product. Refer to

the individual instructions packaged with the kits or acces

sories when instalhng.

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloth for brazing operations. Have

fire extinguisher available. Read these instructions thor

oughly and follow all warnings or cautions attached to<the

unit. Consult local building codes and NEC (National Elec

trical Code) for special installation requirements.

A WARNING

Before installing or servicing, turn off main power to

indoor and outdoor units. There may be more than one

disconnect switch. Turn off accessory heater power if

apphcable. Electric shock can cause personal injury or

death.

GENERAL OPERATION AND USAGE

The HydroTech 2000 advanced variable speed heat pump

system is designed to provide heating and cooling, as weU

as provide a majority of the year round domestic hot water

requirements. The system is composed of three main sec

tions, indoor compressor section, outdoor fan cofi. section

and the indoor fan coil section (see Fig. 1). Additionally a

Fig. 1—38QE/40QE Advanced Heat Pump System

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

^ I PC 101 Catalog No. 563-964 Printed in U.S.A. Form 38QE-3SI Pg 1 5-90 Replaces: 38QE-2SI

Tab I5al5a

1 2 3 4 5 6 ... 13 14

Summary of Contents

Page 1 - Installation Instructions

KEATING A COOLING38QE/40QE Advanced Technology Heat Pump SystemInstallation InstructionsTABLE OF CONTENTSSAFETY CONSIDERATIONS GENERAL OPERATION AND U

Page 2 - Eire designed

TSR-01 Relay Pack Circuit Board24 VAC R and C on '40QE Terminal BoardFig. 10—Thermostat Wiring Diagram (Singie Zone)A89057Fig. 11—Thermostat Wiri

Page 3

Table 4—Electrical DataVOLT/PHASEOPERATING VOLT AG £♦COMPRESSOR FANMAX FUSE or HACRTYPE CIRCUIT BKR AMPSINDOOR COMPRESSOR SECTIONMINMAXLRARLA FLAMCA38

Page 4

38QE Water Heater Control BoxSplice Connection Field Wiring Factory WiringA89056Fig. 13—Water Heater Control Box Power Connections (Electric Water Hea

Page 5

If the thermostat displays a hardware, software, heat pump, or fan coil error code (HF,SF,HP or FC followed by a two digit number)

Page 6 - Jk CAUTION

ice ports are provided on the liquid and vapor service valves. Schrader fittings are also provided on the suction and discharge tub

Page 7

domestic water heating control box emd domestic water heating tank temperature sensor are supplied to control the electric domestic w

Page 8 - Water Temperature

A90214Fig. 2—Outdoor Section Dimensions DimensionsUNIT A B C D EFGHSIZE*(IN.)(mm )(IN.)(mm )(IN.)(mm )(IN.)(mm )(IN.)(mm )(IN.)(mm )(IN.)(mm )(IN.) (m

Page 9

SHIPPING WGT. A BCDEFUSE WITHUNITSERIES LBS.Kg.(IN.)(mm)(IN.) (mm)(IN.)(mm)(IN.)(mm)(IN.)(mm) (IN.)(mm)OUTDOOR SECTION38QE0240230 104.3 3/89.533/8 9.5

Page 10 - (Multipie-Zone)

supplies the power for the Electric Water Heater Tank. Control and sensor wiring will also be connected to the control box. Refer to wiring

Page 11 - Section Control Box

A89059(Top)Fig. 5—38QE/40QE System Piping SchematicA89059 (Bottom)Fig. 6—Maximum Refrigerant Line Length4. After wrapping the service valve with

Page 12 - A CAUTION

Fig. 7a—Installation with Conventional Electric Water Heater7. Insulate all water pipes with closed-cell foam type insulation with a nunimum wall th

Page 13

Compressor section to indoor fan coil section ;38QECompressor Section Terminal Board40QEIndoor Section Terminal BoardCompressor section to outdoor fan

Page 14 - A WARNING

A CAUTIONAvoid running control and sensor wiring in parallel bundles, conduit or pipe chases with the power wiring. Power wiring can

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