Carrier G3 series Installation and user guide

SERVICE AND MAINTENANCE MANUAL
03502573

1
TABLE OF CONTENTS
PAGE NO.
1. UNIT MODEL DESIGNATION & IDENTIFICATION 1
2. UNIT MODEL & PART NUMBERS 1
3. UNIT EXPLODED VIEW 51GR12 2
4. UNIT PART LIST 51GR12 3
2. Engineering Part Numbers for Units:
Cool/Heat CoolOnly
Model P/N Model P/N
51GQR187E-1M 46301182 51GSR187E-1M 46301184
51GQR E
Window Unit Type
51GOR = Heat Pump
51GSR = Cool Only Unit
18
Unit
Cooling Capacity
at ARI Conditions
18=18,000 BTU/hr
1. UNIT MODEL DESIGNATION IDENTIFICATION &
7
UNIT
POWER SUPPLY
220-240V-/1Ph/50Hz
Electronic
Control
-0
Version (0)
M
Mitsushita
Rotary
Com
p
resso
r

2
3. UNIT EXPLODED VIEW
46
48
47
41
13
14
54
15
19
27
31
32
16
17
18
58
7
1
5
38
6
61
60
59
53
39
40
45
52
51
50
49
9
10
11
12
20
21
56
37
36
38
35
34
30
7
57
55
42
43
44
29
33
24
25
28
23
8
3
2
4
26
22

3
4. UNIT PART LIST
QUANTITY / UNIT
SR PART NAME PART
NUMBER
51GQR-18 51GSR-18
1BASE PAN ASSEMBLY – ROTARY (250-50000-5068) 36318699 11
2DRAIN PAN (030030-5041-1408) 02602561 11
3EVAPORATOR COIL ASSY (270-7101-0228) 02600178 11
4TUBE CONNECTOR (370-6908-5528) 06314160 11
5DIESTRIBUTER (EA00OO204) 02301060 11
6TUBE CONNECTOR (370-5507-5538/5548/5558/5558) 06314161 11
7STRAIN INSERT (KH11HH078) 06314162 11
8EVAP. ORIFICE (51GW14201013) 06314163 11
9EVAP. SCROLL BOTTOM (030-1909-1663B) 02602562 11
11 PARTITION (51GW32203004) 06314164 11
11 MOTOR SUPPORT (51GW38815007) 06314165 11
12 FAN MOTOR 18K /50HZ (022-81D1-484B) 02400217 11
13 BLOWER WHEEL ASSY (025-5152-120B) 02600638 11
14 EVAP. SCROLL TOP (030-1909-1684B) 02602563 11
15 MOTOR CLAMP (51GW33701003) 02100880 11
16 CONDENSSER FAN ASSY (025-5151-1338) 02600639 11
17 CONDENSSER ORIFICE (51GW022801003) 06314166 11
18 CONDENSSER COILL ASSY (270-5051-024B) 02600179 11
19 COMPRESSOR MITSUSHITA (121-811R-341B) 01500230 11
21 GROMMMET COMPRESSOR (12B-5512-44B) 11
21 NUT WASHER (033-1121-16T) 02100881 11
22 TUBE CONNECTOR (370-5807-547B) 06314167 11
23 REVERSING VALVE (024-B405-22B) 02200414 11
24 TUBE CONNECTOR (370-807-562B) 06314168 11
25 PIPING GROMMET (029-5502-71B) 02802829 11
26 SUCTION TUBE ASSY (170-5815-11BB) 36318704 11
27 DISCHARGE TUBE (370-5813-516B) 06314169 11
28 PIPING GROMMET (029-5502-738) 02802830 11
29 TUBE CONNECTOR ASSY (170-5807-171B) 36318705 11
31 HEADER ASSY – CONNECTOR (170-5807-352B) 36318706 11
31 TUBE CONNECTOR (370-5807-54BB) 06314170 11
32 CAPILLARY TUBE – FORMED (070-5807-015B) 06314171 11
33 TUBE CONNECTOR (170-5807-548B) 06314172 11
34 TUBE CONNECTOR (170-5807-357B) 06314173 11
35 MANIFOLD (51GS500-327) 06314174 11
36 TUBE CONNECTOR ASSY (170-5807-125B) 36318707 11
37 TUBE CONNECTOR (370-5807-550B) 06314175 11
38 TUBE SENSOR HOLDER (370-5807-00IB) 02802831 11
39 CONTROL PANAL COVER (51GW32-307OO5) 06314176 11
41 MOTOR LOUVER (024-8101-7DIB) 02400218 11
41 CAM AIR SWEEP (028-6061-105B) 02802832 11
42 OUTLET NOZZLE (028-6061-100B) 02802833 11
43 VERTICAL LOUVER (028-8061-103B) 02802834 11
44 EXHAUST COMMAND (028-8081-104B) 02802835 11
45 CONTROL BOX ELECTRONIC (51GW32307007) 06314177 11
46 MAIN BOARD (121-B413-222B) 36313736 1 1
47 CAPACTOR 50+7.5 MFD. (023-8552-643B) 02400219 11
48 CAPACTOR BRACKET (51GW03201002) 06314178 11
49 SERVICE CORD (89LR560054S) 02503263 11
51 CLAMP CABLE (51GS500622) 02802836 11
51 DISPLY BOARD (121-8413-221B) 36313735 1 1
52 REMOTE CONTOLLER (121-8413-223B) 02501398 1 1
53 RETAINER (51HE500156) 02802837 11
54 FILLER METAL (518N32204003 06314179 11

4
UNIT PART LIST (Cont.)
QUANTITY / UNIT
SR PART NAME PART
NUMBER
51GQR-18 51GSR-18
55 EVAPORATOR TOP COVER ASSY (250-5000-505B) 36318708 11
56 CONDENSSER TOP COVER (51GWO2802003) 06314180 11
57 TOP BRACKET (51GW35603000) 06314181 11
58 CABINET ASSEMBLY (250-5000-807B) 36318709 11
59 FRONT GRILLE (128-7050-B01B) 02802838 11
61 NAMEPLATE GRILLE (128-7050-B01B) 02802839 11
61 FILTER (032-7002-140B) 02802840 11