Grandaire R4H3 Series Installation Instructions Manual Download

Page: 11 / 17

INSTALLATION INSTRUCTIONS

−

410A Split System Heat Pump

428 01 5301 05

Specifications subject to change without notice.

Figure 12

Defrost Control Board

OF1

R21

H9C1

C US



R14

R13

D13

C10

JW2

JW1

C16

R28

JW3

C13

R26

D10

A29

C19

OF2

CEBD430524

−

01A

5501A

T1 C C O

DFT

SPEEDUP

30 60 90

R20

HK32EA001

C17

O
R

Y
C

Summary of Contents for R4H3 Series

Page 1: ...e following manner The signal word CAUTION is used throughout this manual in the following manner Signal Words on Product Labeling Signal words are used in combination with colors and or pictures on p...

Page 2: ...r intakes vents or bedroom windows Noise may carry into the openings and disturb people inside Locate unit in a well drained area or support unit high enough so that water runoff will not enter the un...

Page 3: ...1 4 540 26x26 660x660 31 1 8x31 1 8 791x791 9 1 16 230 6 1 2 165 24 5 8 625 31 1 2x31 1 2 800x800 C FASTENING UNIT DOWN If conditions or local codes require the unit be attached in place remove the k...

Page 4: ...ine Applications Guideline for line set sizing NOTE Total line set length must not exceed 200 feet 61m NOTE A crankcase heater must be used when the refrigerant line length exceeds 80 feet 24 4m If ou...

Page 5: ...operation Do not bury more than 36 1m of line set under ground Refrigerant may migrate to cooler buried section during extended periods of unit shut down causing refrigerant slugging and possible com...

Page 6: ...efer to Figure 5 Replace valve core when brazing is completed WARNING FIRE HAZARD Failure to remove refrigerant and oil charge before brazing could result in personal injury death and or property dama...

Page 7: ...ur During this time dry nitrogen will diffuse throughout the system absorbing moisture 5 Repeat this procedure as indicated in Figure 7 6 After the final evacuate sequence confirm there are no leaks i...

Page 8: ...e panel or a properly driven and electrically grounded ground rod Wiring Connections Make all outdoor electrical supply Line Voltage connections with raintight conduit and fittings Most codes require...

Page 9: ...DOOR FAN COIL WHEN INSTALLING OUTDOOR THERMOSTATS SYSTEMS WITH ONE OUTDOOR THERMOSTAT G R W 3 C O R G R W 3 C E C W 2 Y W 2 O R C W 2 Y W 2 C L G Y E O R SYSTEMS WITHOUT OUTDOOR THERMOSTATS C G R W 2...

Page 10: ...circuit and operation of the defrost thermostat itself will not be observed Skip to 3 2 Use a volt meter to confirm there is no voltage across the DFT leads 24 volts across the SFT terminals indicates...

Page 11: ...ithout notice Figure 12 Defrost Control Board R8 OF1 K1 O1 R21 C2 R6 H9C1 C US R14 R13 D13 R7 C4 C10 JW2 JW1 D3 C16 C7 R28 D6 JW3 C13 R4 R1 R2 R3 R11 R5 R26 D1 D2 D10 A29 R9 D4 C19 C9 C1 OF2 CEBD43052...

Page 12: ...range NOTE If line length is beyond 80 feet 24 4m or greater than 20 feet 6 1m vertical separation See Long Line Guideline for special charging requirements A UNITS WITH COOLING MODE TXV Units install...

Page 13: ...34 37 24 3 5 7 8 10 12 13 16 17 19 21 80 5 8 12 15 18 21 25 28 31 35 27 3 4 7 8 10 12 14 16 17 19 85 8 11 15 19 22 26 30 33 29 4 6 8 11 12 14 17 18 90 5 9 13 16 20 24 27 31 32 3 5 7 9 11 13 15 17 95 6...

Page 14: ...26 299 90 32 88 31 86 30 84 29 82 28 80 27 308 92 33 90 32 88 31 86 30 84 29 82 28 317 94 34 92 33 90 32 88 31 86 30 84 29 326 96 36 94 34 92 33 90 32 88 31 86 30 335 98 37 96 36 94 34 92 33 90 32 88...

Page 15: ...3 FS M U 4P24 A TXV 5 3 ED 4X30 EA 4X30 14 17 A 3 EN 4X30 3 3 EHD4X30A 3 3 FEM4 P X 30 A TXV 3 FSA4X30 A 3 FEA4X30 A 3 FXM4X30 A 5 5 FS M U 4P30 A TXV 5 5 FVM FCM 4X36 5 3 ED 4X36 EA 4X36 14 17 21 A 5...

Page 16: ...cer bringing on the first bank supplemental electric heat and providing electrical potential to the second heater sequencer if used If outdoor temperature falls below the setting of the outdoor thermo...

Page 17: ...ith other HFC refrigerants is only compatible with POE oils Vacuum pumps will not remove moisture from oil Do not use liquid line filter driers with rated working pressures less than 600 psig Do not i...

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