Instruction manual

ManualsBrandsCarrier ManualsHeat Pump38YKC

HEATING & CCOUNG

Visil www.carrier.com

38YKC

10 SEER Split System

Heat Pump

Installation and Start-Up Instructions

NOTE: Read the entire instruction manual belore starting the

installation.

This symlx)l --+ indicates a change since the last issue.

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance,

or use can cause explosion, 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. 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 accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing,

and work gloves. Use quenching cloth lor brazing operations.

Have fire extinguisher available. Read these instructions thor-

oughly and follow all warnings or cautions included in literature

and attached to the unit. Consult local building codes and National

Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety-alert symbol/_.

When you see this symbol on the unit and in instructions or

manuals, be alert to the potential for personal injury.

Understand the signal words DANGER, WARNING, and CAU-

TION. These words are used with the sal_ty-alert symbol. DAN-

GER identifies the most serious hazards which will result in severe

personal injury or death. WARNING signifies hazards which

could result in personal injury or death. CAUTION is used to

identify unsafe practices which would result in minor personal

injury or product and property damage.

Before installing, modifying, or servicing system, main elec-

trical disconnect switch must be in the OFF position. There

may be more than 1 disconnect switch. Lock out and tag

switch with a suitable warning label. Electrical shock can

cause personal injury or death.

INSTALLATION RECOMMENDATIONS

NOTE: In some cases noise in the living area has been traced to

gas pulsations from improper installation of equipment.

I. Locate unit away from windows, patios, decks, etc. where unit

operation sounds may disturb customer.

2. Ensure that vapor and liquid tube diameters are appropriate to

capacity of unit.

3. Run refrigerant tubes as directly as possible by avoiding

unnecessary turns and bends.

4. Leave some slack between structure and unit to absorb

vibration.

5. When passing refrigerant tubes through the wall, seal opening

with RTV or other pliable silicon-based caulk. (See Fig. 2.)

6. Avoid direct tubing contact with water pipes, duct work, floor

joists, wall studs, floors, and walls.

A98519

Fig. 1--Model 38YKC

7. Do not suspend refrigerant tubing from joists and studs with a

rigid wire or strap which comes in direct contact with tubing.

(See Fig. 2.)

8. Ensure that tubing insulation is pliable and completely sur-

rounds vapor tube.

9. When necessary, use hanger straps which are 1 in. wide and

conform to shape of tubing insulation. (See Fig. 23

10. Isolate hanger straps from insulation by using metal sleeves

bent to conform to shape of insulation.

When outdoor unit is connected to factory-approved indoor unit,

outdoor unit contains system refrigerant charge for operation with

indoor unit of the same size when connected by 15 ft of

field-supplied or factory accessory tubing. For proper unit opera-

tion, check refrigerant charge using charging infi>rmation located

on control box cover.

IMPORTANT: Maximum liquid-line size is 3/8-in. O.D. for all

residential applications including long line.

IMPORTANT: Always install a liquid-line filter drier. RelEr to

Product Data Sheet fi_rappropriate part number. Obtain filter drier

from service parts or your distributor or branch.

INSTALLATION

Step 1---Check Equipment and Job Site

UNPACK UNIT

Move to final location. Remove carton taking care not to damage

unit.

INSPECT EQUIPMENT

File claim with shipping company prior to installation if shipment

is damaged or incomplete. Locate unit rating plate on unit comer

panel. It contains inlbrmation needed to properly install unit.

Check rating plate to be sure unit matches job specifications.

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

PC 101 Catalog No. 563 718 Printed in U.S,A Form 38YKC-281 Pg 1 11-98 38YKC-181

Replaces:

Summary of content (12 pages)

PAGE 1
HEATING Visil 38YKC 10 SEER Split System Heat Pump & CCOUNG www.carrier.com Installation and Start-Up Instructions NOTE: Read the entire instruction manual belore installation. starting the This symlx)l --+ indicates a change since the last issue. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage.
PAGE 2
3/8 IN. DIA TIEDOWN "_ KNOCKOUTS IN BASEPAN (2) PLACES NOTE: Avoid contact between tubing and structure OUTDOOR WALL-k ,NDOOR WALtz ? CAULK (_ -- &- LIQUID TUBE_ 2/-% J_'_ SULATION -_" _ ......... VAPOR TUBE THROUGH THE WALL J_"-JOIST HANGER STRAP'_ (AROUND VAPOR TUBE ONLY) %= -_,' \ /_ --8 3/16" INSULATION A97548 Dimensions (In.
PAGE 3
indoor coil piston with piston shipped with piston shipped with outdoor unit is correct coil combination. outdoor unil. Ior any approved The indoor To prevent damage to unit or service valves observe the or use a heat sink following: • Use a brazing • Wrap material. Check outdoor unit piston. and check piston rating retainer size with matching on liquid service number listed on outdoor Check del¥ost securely Defrost thermostat unit attached.
PAGE 4
Table 2--Accessory Usage REQUIRED FOR LOW-AMBIENT APPLICATIONS REQUIRED FOR LONG-LINE APPLICATIONS* (BELOW 55°F) (OVER 50 FT) Yes Yes Evaporator Freeze Thermostat Accumulator Yes No No No Compressor Start Assist Capacitor and Relay Low-Ambient Controller, Yes Yes MotorMaster_ Control, or Low-Ambient Pressure Switch Wind Baffle Yes NO See Low-Ambient Instructions No Support Feet Recommended No No See Long-Line Application Guideline Yes_ No ACCESSORY Crankcase Heater Liquid-Line S
PAGE 5
CARRIER PROGRAMMABLE THERMOSTAT MODEL HP 24 VAC CARRIER PROGRAMMABLE THERMOSTAT MODEL HP FA, FB, FC, FD, FE, FH FAN COIL HEAT PUMP ONE OUTDOOR THERMOSTAT 24 VAC HOT INDOOR INDOOR HEAT PUMP m .j - - -_] HOT FA, FB, FC, FD, FF, FH FAN COIL _1 FAN FAN HEATSTAGE2 HEAT STAGE2 _] ODT _i-- COOWHEAT STAGE1 COGL/HEAT STAGE 1 RVS COOLING RVS COOLING NOT USED I NOTUSED I....
PAGE 6
OTHER HP THERMOSTAT EA, EB, FC, FD. FF, FH FAN COIL HEAT PUMP FA, FB, FC, FD, EF, FH FAN COIL OTHER HP THERMOSTAT HEAT PUMP ONE OUTDOOR THERMOSTAT OOT 24 VAC HOT 24VACHOT _ _. 24VACCOM _ _- J ! HEATSTAGE2 _ _. ,J 24 VAC COM r"gL[ HEAT STAGE 2 [_ COOL/HEAT STAGE 1 INDOOR : COOL!HEAT FAN [_ RVS COOLING INDOOR STAGE1 _'_ EMERGENCY HEAT IF AVAILABLE A97374 FAN RVS COOUNG [_3 EMERGENCY HEAT [_ NOTE: FA, EB, FC, FD, FF, FH FAN COIL HEAT PUMP r_! __ i _,_ ......
PAGE 7
CARRIER PROGRAMMABLE THERMOSTAT MODELHP FA, EB, EC, EH ONE FAN COIL WITH OUTDOOR SMART HEAT THERMOSTAT m CARRIER PROGRAMMABLE THERMOSTAT MODEL HP ! 24 VAC HOT _" INDOOR PAN _ FA, FB, FC, FH FAN COIL WITH MART HEAT HEAT PUMP .......4_-t ...... _ I -I r--E_I ...... -,q-DI HEAT PUMP 24 VAC HOT ....._ -_#-E_ INDOOR .....
PAGE 8
FA, FB, FC, FH FAN COIL SMART HEAT OTHER HP THERMOSTAT 24 VAC HOT ...... tZ_3-t..... -_--IN 24 VAC HOT 24 MAC COM ...... -E_k..... ___[_ 24 VAC COM ...... -[Z]I COO_HEAT STAGE1 ...... 4-_-11 INDOOR ...... -IZ}k..... RVS COOLING -7 EMERGENCY HEAT COOL/HEAT STAGE 1 E_ INDOOR FAN RVS COOLING I_ EMERGENCY HEAT / IA_-F..... I_ ....... ..... "t_Z3-1..... ...... m-II ...... tZ]I ...... C_-k..... FAN _] ...... HEAT STAGE 2 _JW1 HEAT PUMP ..... ,__f .....
PAGE 9
CARRIER DUALFUEL THERMOSTAT MODELDF CARRIER DUALPUEL THERMOSTAT MODELDF SINGLE-STAGE FURNACE HEATPUMP 24 VAC HOT [_]-- -4® ..... FAN [_-- ----H_ FURNACE _. ...... ----I-E3..... _- I E_-" RVS HEATING _] [_-" FAN [_- FURNACE LO [-W'_I-- ' _H_mi N/A 24 VAC COM 24 VAC HOT COMPRESSOR _-2]--" ............. _,cL__ ! RVS COOLING HEAT PUMP m m _OMPRESSOR TWO-STAGE OR VARIABLE SPEED FURNACE RVS COOLING FURNACE HI _ 24 VAC COM E_-- RVS HEATING [_7 q-J-IZ] ---_1_ ......
PAGE 10
Use furnace translormer, fan coil transformcr, or accessory transformer for control power, 24-v/40-va minimum. SEQUENCE NOTE: Del¥ost NOTE: Use of available 24-v accessories may exceed the minimum 40-va power requirement. Determine total transformer loading and increase the transformer capacity or split the load with an accessory transformer as required. lockout timer 10--Compressor Crankcase When equipped with a crankcase minimum of 24 hr before starting only, set thermostat outdoor unit.
PAGE 11
6. To obtain required o _ o II line pressure, higher lower.
PAGE 12
Table 5--Superheat EVAPORATOR OUTDOOR TEMP (°F) ENTERING AiR TEMPERATURE ('F WB) 50 52 54 56 58 60 62 64 66 68 70 72 74 76 55 9 12 14 17 20 23 26 29 32 35 37 40 42 45 6O 7 10 t2 16 18 21 24 27 30 35 35 38 40 43 65 6 10 13 16 19 21 24 27 30 33 36 38 41 7O -- 7 10 13 16 19 21 24 27 30 33 36 39 78 -- -- 6 9 12 15 10 21 24 26 31 34 37 -- -- -- 5 8 12 15 16 21 25 26 3! 35 .....