Friedrich MW18C3E User Manual

SPLIT TYPE  
ROOM AIR CONDITIONER  
WALL MOUNTED type  
Reciprocating Compressor Models  
Indoor unit  
Outdoor unit  
MW18C3E  
MW18Y3E  
MW24C3E  
MW24Y3E  
MW30C3E  
MR18C3E  
MR18Y3E  
MR24C3E  
MR24Y3E  
MR30C3E  
Rotary Compressor Models  
Indoor unit  
Outdoor unit  
MW18C3E  
MW18Y3E  
MR18C3E-A  
MR18Y3E-A  
MW24C3E  
MW24Y3E  
MR24C3E-A  
MR24Y3E-A  
C O N T E N T S  
1
3
4
SPECIFICATIONS  
OUTLINE AND DIMENSIONS  
REFRIGERANT SYSTEM DIAGRAM  
CIRCUIT DIAGRAM  
9
14  
17  
18  
35  
INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM  
ERROR DISPLAY  
DISASSEMBLY ILLUSTRATION  
PARTS LIST  
S P E C I F I C A T I O N S  
R O T A R Y C O M P R E S S O R M O D E L S  
COOL  
COOL & HEAT  
COOL  
COOL & HEAT  
TYPE  
INDOOR UNIT  
MW18C3E  
MR18C3E-A  
18,000 -17,000  
-----  
MW18Y3E  
MR18Y3E-A  
MW24C3E  
MR24C3E-A  
23,000 - 22,500  
-----  
MW24Y3E  
MR24Y3E-A  
OUTDOOR UNIT  
COOLI NG CAPACITY  
HEATING CAPACITY  
(BTU / h)  
(BTU / h)  
17,500 - 16,500  
18,000 - 17500  
23,000 - 22,500  
23,500 - 22,500  
ELECTRICAL DATA  
POWER SOURCE  
(V)  
230 / 208  
60  
FREQUENCY  
(Hz)  
COOLING  
HEATI NG  
COOLING  
8.3 - 9.1  
-----  
8.2 - 8.9  
8.0 - 8.5  
10.7 - 11.7  
-----  
10.5- 11.3  
9.9- 10.4  
2.34- 2.29  
RUNNING CURRENT (A)  
1.91 - 1.87  
1.89 - 1.84  
2.41 - 2.40  
INPUT WATTS  
E.E.R.  
(kW)  
HEATI NG  
COOLING  
HEATI NG  
( / hr)  
-----  
9.4 - 9.0  
-----  
1.82 - 1.77  
9.26 - 8.97  
9.89 - 9.89  
1.8  
-----  
10.7 - 11.7  
-----  
2.18- 2.13  
9.82- 9.83  
10.8- 10.6  
2.7  
(BTU / h.W)  
MOISTURE REMOVAL  
AIR CIRCULATION - Hi  
2.0  
2.7  
3
800  
800  
1,000  
1,000  
(m / hr)  
COMPRESSOR  
TYPE  
Hermetic type, Permanent split condenser, 2 poles, Single phase, Induction motor  
CODE  
PH28NSGT  
1,700  
PH28NSGT  
1,900  
PH33NTJT  
2,000  
PH33NTJT  
2,200  
REFRIGERANT R-22  
(g)  
FAN MOTOR  
POWER SOURCE  
(V)  
230 / 208  
(r.p.m.)  
(r.p.m.)  
TYPE  
MFA-18FPHT  
960 - 870  
MFA-18FPHT  
960 - 870  
MFA-30FPHT  
1,260 - 1,160  
MFA-30FPHT  
1,260 - 1,160  
HI-SPEED  
INDOOR UNIT  
MED-SPEED (r.p.m.)  
LO-SPEED (r.p.m.)  
TYPE  
840 - 750  
720 - 580  
MFB-24FP  
735  
840 - 750  
720 - 580  
MFB-24FP  
735  
1,130 - 1,030  
990 - 870  
MFB-24FP  
735  
1,130 - 1,030  
990 - 870  
MFB-24FP  
735  
OUTDOOR UNIT  
(r.p.m.)  
DIMENSIONS  
HEIGHT inch (mm)  
12 - 19/32" (320)  
12 - 19/32" (320)  
12 - 19/32" (320)  
12 - 19/32" (320)  
INDOOR UNIT  
WIDTH  
DEPTH  
HEIGHT  
WIDTH  
DEPTH  
inch (mm)  
inch (mm)  
49 -7/32" (1,250)  
7 - 11/16" (195)  
25 - 1/8" (643)  
33 - 1/32" (840)  
13 - 1/4" (336)  
49 -7/32" (1,250)  
7 - 11/16" (195)  
25 - 1/8" (643)  
33 - 1/32" (840)  
13 - 1/4" (336)  
49 -7/32" (1,250)  
7 - 11/16" (195)  
25 - 1/8" (643)  
33 - 1/32" (840)  
13 - 1/4" (336)  
49 -7/32" (1,250)  
7 - 11/16" (195)  
25 - 1/8" (643)  
33 - 1/32" (840)  
13 - 1/4" (336)  
inch (mm)  
inch (mm)  
inch (mm)  
OUTDOOR UNIT  
WEIGHTS  
INDOOR UNIT  
55 / 40 (25 / 18)  
55 / 40 (25 / 18)  
165 / 147 (75 / 67)  
55 /40 (25 / 18)  
165 /147 (75 / 67)  
55 /40 (25 / 18)  
167 /150 (76 / 68)  
GROSS / NET lbs (kg)  
OUTDOOR UNIT  
163 / 145 (74 / 66)  
REFRIGERANT CHARGING  
25 ft. (7.5 m)  
1,700 g  
33 ft. (10 m)  
1,736 g  
49 ft. (15 m)  
1,808 g  
66 ft. (20 m)  
1,880 g  
PIPE LENGTH  
MR18C3E-A  
(60.0 oz.)  
(61.2 oz.)  
(63.7 oz.)  
(66.3 oz.)  
FULL  
1,900 g  
(67.0 oz.)  
1,985 g  
(70.0 oz.)  
2,155 g  
(76.0 oz.)  
2,325 g  
(82.0 oz.)  
MR18Y3E-A  
CHARGE  
AMOUNT  
2,000 g  
2,030 g  
2,060 g  
2,120 g  
MR24C3E-A  
MR24Y3E-A  
(67.0 oz.)  
2,200 g  
(71.6 oz.)  
2,285 g  
(72.7 oz.)  
2,455 g  
(74.8 oz.)  
2,625 g  
(77.6 oz.)  
(80.6 oz.)  
(86.6 oz.)  
(92.6 oz.)  
Note : Whenever 7.5 m is exceeded, and/or when using a line set length other than those found in the table, charge with additional refrigerant as follows:  
34 g (1.20 oz.) / 3.3 ft. (1 m) for 18Y, 24Y Models and 14.4 g (0.51 oz.) / 3.3 ft (1 m) for 18C Model and 12 g (0.42 oz.) / 3.3 ft (1 m) for 24C Model.  
2003.06.17  
- 3 -  
Models: MW18C3E, MW18Y3E  
MW24C3E, MW24Y3E  
MW30C3E  
Models: MR18C3E, MR18C3E-A  
Model: MR30C3E  
MR18Y3E, MR18Y3E-A  
MR24C3E, MR24C3E-A  
MR24Y3E, MR24Y3E-A  
14-9/16"(336)  
R E F R I G E R A N T S Y S T E M D I A G R A M  
Models: MW18C3E / MR18C3E  
Models: MW18Y3E / MR18Y3E  
2003.08.27  
Models: MW24C3E / MR24C3E  
Models: MW24Y3E / MR24Y3E  
2003.08.27  
- 5 -  
Model: MW30C3E / MR30C3E  
2003.08.27  
- 6 -  
Models : MW18C3E / MR18C3E-A  
Models : MW18Y3E/ MR18Y3E-A  
Cooling  
Heating  
: Flare coupling  
2003.08.27  
- 7 -  
Models : MW24C3E / MR24C3E-A  
Models : MW24Y3E / MR24Y3E-A  
Cooling  
Heating  
: Flare coupling  
2003.08.27  
- 8 -  
Models: MW18C3E / MR18C3E  
MW24C3E / MR24C3E  
Models: MW18Y3E / MR18Y3E  
MW24Y3E / MR24Y3E  
Models: MW30C3E / MR30C3E  
Models: MW18C3E / MR18C3E-A  
MW24C3E / MR24C3E-A  
Models: MW18Y3E, MR18Y3E-A  
MW24Y3E, MR24Y3E-A  
Models: MW18C3E / MR18C3E, MR18C3E-A  
MW24C3E / MR24C3E, MR24C3E-A  
Models: MW18Y3E / MR18Y3E, MR18Y3E-A  
MW24Y3E / MR24Y3E, MR24Y3E-A  
Models: MW30C3E / MR30C3E  
E R R O R D I S P L A Y  
Operation can be checked by lighting and flashing of the  
display section OPERATION and TIMER lamps. Perform  
judgment in accordance with the following.  
Test running  
When the air conditioner is run by pressing the remote control  
unit test run button, the OPERATION and TIMER lamps flash  
slowly at the same time.  
Error  
The OPERATION and TIMER lamps operate as follows (Table)  
according to the error contents.  
Table  
Error display  
Error contents  
0.5 sec  
0.5 sec  
ON  
Two quick  
flashes  
repeated  
OPERATION  
LAMP  
Room temperature  
thermistor abnormal  
temperature  
OFF  
5
sec  
se  
0.1  
ON  
detected  
0.1 sec ON/OFF  
repeated  
TIMER  
LAMP  
O
sec  
F F  
0.5  
0.5 sec  
ON  
ON  
Three quick  
flashes  
repeated  
OPERATION  
LAMP  
Piping thermistor  
abnormal  
temperature  
detected  
O F  
F 5  
sec  
se  
TIMER  
LAMP  
0.1 sec  
ON/OFF  
repeated  
O
sec  
F F  
2003.06.18  
- 17 -  
Models: MW18C3E  
MW18Y3E  
MW24C3E  
MW24Y3E  
MW30C3E  
MW24C3E, MW24Y3E, MW30C3E  
Models: MW18C3E  
MW18Y3E  
MW24C3E  
MW24Y3E  
MW30C3E  
Models: MW18C3E  
MW18Y3E  
MW24C3E  
MW24Y3E  
MW30C3E  
Models: MR18C3E, MR18C3E-A, MR18Y3E, MR18Y3E-A  
MR24C3E, MR24C3E-A, MR24Y3E, MR24Y3E-A  
Models: MR18C3E  
Models: MR18C3E-A  
Model: MR18Y3E  
Model: MR18Y3E-A  
Model: MR24C3E  
Model: MR24C3E-A  
Model: MR24Y3E  
Model: MR24Y3E-A  
Model: MR30C3E  
Models: MR30C3E  
Models: MR30C3E  
Models: MR18C3E-A  
MR18Y3E-A  
MR24C3E-A  
MR24Y3E-A  
Models: MR18C3E-A  
MR18Y3E-A  
MR24C3E-A  
MR24Y3E-A  
MW18C3E  
MW18Y3E  
MW24C3E  
MW24Y3E  
MW30C3E  
P A R T S L I S T  
When you order parts, please make a photocopy of this page  
and fill the number of the parts in the "Order" Column.  
INDOOR UNIT  
Part No.  
MW24C3E  
67210022  
Ref.  
No.  
Ord.  
Q'ty  
Description  
MW18C3E  
67210022  
MW18Y3E  
67210022  
MW30C3E  
67210022  
MW24Y3E  
67210022  
34  
Capacitor(Fan Motor)  
63  
69  
91  
93  
108  
109  
Panel(Front) Total Assy  
Louver  
Hinge Plate  
Air Filter  
Base  
Casing Assy  
67210014  
67120007  
67220079  
67210003  
67210011  
67210015  
67210014  
67120007  
67220079  
67210003  
67210011  
67210015  
67210014  
67120007  
67220079  
67210003  
67210011  
67210015  
67210014  
67120007  
67220079  
67210003  
67210011  
67210015  
67210014  
67120007  
67220079  
67210003  
67210011  
67210015  
127  
Drain Hose Assembly  
67210017  
67210017  
67220074  
67210017  
67220074  
67210017  
67220074  
67210017  
67220074  
146  
164  
Evaporator Assy  
Fan Motor Assy-IN  
67220074  
67220076  
67220076  
67220076  
67220076  
67220076  
210  
234  
235  
Main Relay  
Thermistor Assy-Room  
Thermistor Assy-Pipe  
67210001  
67210026  
67210027  
67210001  
67210026  
67210027  
67210001  
67210026  
67210027  
67210001  
67210026  
67210027  
67210001  
67210026  
67210027  
236  
Controller PCB Assy  
67220068  
67220070  
67220068  
67220069  
67210031  
240  
320  
325  
326  
385  
Remote Control Unit  
67210018  
67220078  
67210004  
67210005  
67210025  
67220081  
67220078  
67210004  
67210005  
67210025  
67210018  
67220078  
67210004  
67210005  
67210025  
67220081  
67220078  
67210004  
67210005  
67210025  
67220018  
67220078  
67210004  
67210005  
67210025  
Flap(Upper)-G  
Cross Flow Fan-R Assy  
Crossflow Fan – L Assy  
Indicator PCB Assy  
401  
Bracket, Panel  
67220048  
67210006  
67210008  
67210009  
67210057  
67210019  
67220048  
67210006  
67210008  
67210009  
67210057  
67210019  
67220048  
67210006  
67210008  
67210009  
67210057  
67210019  
67220048  
67210006  
67210008  
67210009  
67210057  
67210019  
67220048  
67210006  
67210008  
67210009  
67210057  
67210019  
407-2 Louver Rod  
407-3 Louver Stopper  
408  
679  
743  
Louver Link  
Cover(Power)  
Remote Control Unit Holder  
767-1 Bottom Cover-A  
767-2 Bottom Cover-B  
67220046  
67220047  
67210013  
67210012  
67210002  
67220046  
67220047  
67210013  
67210012  
67210002  
67220046  
67220047  
67210013  
67210012  
67210002  
67220046  
67220047  
67210013  
67210012  
67210002  
67220046  
67220047  
67210013  
67210012  
67210002  
778  
777  
815  
Hook(Grille)-R  
Hook(Grille)-L  
Terminal-6P  
875  
Filter PCB Assy  
67210029  
67220084  
67220085  
67210010  
67210029  
67220084  
67220085  
67210010  
67210029  
67220084  
67220085  
67210010  
67210029  
67220084  
67220085  
67210010  
67210029  
67220084  
67220085  
67210010  
876-1 Step Motor-H  
876-2 Step Motor-V  
963  
963  
Fan Guard  
Fan Guard  
2003.06.18  
- 35 -  
MR18C3E  
MR18Y3E  
MR24C3E  
MR24Y3E  
P A R T S L I S T  
OUTDOOR UNITS EQUIPPED WITH RECIPROCATING COMPRESSOR  
When you order parts, please make a photocopy of this page  
and fill the number of the parts in the "Order" Column.  
Part No.  
MR24C3E  
Ord.  
Q'ty  
Ref.  
Description  
No.  
MR18C3E  
67220075  
MR18Y3E  
67220075  
MR24Y3E  
67220075  
67210052  
67210033  
67220080  
67220028  
67220032  
67220038  
67220039  
67220042  
67220064  
-----  
67220075  
67210052  
67210033  
67220080  
67220028  
67220032  
67220038  
67220039  
67220042  
67220064  
67220052  
-----  
2
4
Fan Cover  
Emblem-Rear ”FRIEDRICH”  
67210052  
67210033  
67220080  
67220028  
67220032  
67220038  
67220039  
67220042  
67210052  
67210033  
67220080  
67220028  
67220032  
67220038  
67220039  
67220042  
67220064  
-----  
6
7
Cabinet-C, Painted  
Panel (Top), Painted Metal  
Cabinet-B, Painted  
Base Assy. Painted  
3-Way Valve Assy.  
2-Way Valve Assy.  
Dryer  
9
12  
13  
14  
15  
16  
19  
Condenser Assy.  
Capillary Tube  
67220064  
67220052  
-----  
19-3  
19-2  
26  
Capillary Tube-C  
Capillary Tube-B  
Compressor Blanket  
Capacitor(Fan Motor)  
Running Capacitor  
Propeller Fan Assy.  
Outdoor Fan Motor Assy.  
Compressor Assy.  
Power Relay  
-----  
67220057  
67220055  
67220034  
67206200  
67200082  
67210034  
67220077  
67220063  
67210044  
67220086  
67220083  
67220090  
67220060  
67210055  
67220041  
67220088  
67220025  
-----  
67220056  
67220034  
67206200  
67220037  
67210034  
67220077  
67220063  
67210044  
67220087  
67220083  
67220090  
67220061  
67210055  
67220041  
67220088  
67220025  
-----  
67220034  
67206200  
67220037  
67210034  
67220077  
67220063  
67210044  
-----  
67220034  
67206200  
67220082  
67210034  
67220077  
67220063  
67210044  
-----  
34  
37  
39  
41  
46  
218-3  
272  
343  
344  
519  
646  
Strainer  
Solenoid Coil  
-----  
-----  
4-Way Valve  
-----  
-----  
Check Valve Assy.  
Compressor Blanket (Top)  
-----  
-----  
67210055  
67210055  
67220041  
67220088  
67220025  
717  
815  
824  
Center Plate  
Terminal-8P  
Fuse  
67220041  
67220088  
67220025  
2003.08.27  
- 36 -  
MR18C3E-A  
MR18Y3E-A  
MR24C3E-A  
MR24Y3E-A  
P A R T S L I S T  
OUTDOOR UNITS EQUIPPED WITH ROTARY COMPRESSOR  
When you order parts, please make a photocopy of this page  
and fill the number of the parts in the "Order" Column.  
Part No.  
Ord.  
Q'ty  
Ref.  
No.  
Description  
MR18C3E-A  
67220075  
67210052  
67220029  
67220033  
67220080  
67220028  
67210151  
67220138  
67220139  
67200449  
MR18Y3E-A  
67220075  
67210052  
67220029  
67220033  
67220080  
67220028  
67210151  
67220138  
67220139  
67200449  
67220184  
67220054  
67220056  
-----  
MR24C3E-A  
67220075  
67210052  
67220029  
67220033  
67220080  
67220028  
67210151  
67220138  
67220139  
67200449  
67220185  
67220052  
-----  
MR24Y3E-A  
67220075  
67210052  
67220029  
67220033  
67220080  
67220028  
67210151  
67220138  
67220139  
67200449  
67220191  
67220057  
67220055  
67220053  
67210155  
67220186  
67220082  
67210034  
67220077  
67210154  
67210347  
67220086  
67220083  
67220091  
67220060  
67210055  
67220041  
67220088  
67220025  
67210120  
67210116  
67210115  
67220188  
67210156  
2
4
Fan Cover  
Emblem-Rear ”FRIEDRICH”  
5
6
Cabinet-A Painted  
Cabinet-C, Painted  
Electrical Access Panel, Painted  
Cabinet-B, Painted  
Base Assy. Painted  
3-Way Valve Assy.  
2-Way Valve Assy.  
Dryer  
7
9
12  
13  
14  
15  
16  
19  
Condenser Assy.  
Capillary Tube-A  
Capillary Tube-B  
Capillary Tube-C  
Compressor Blanket  
Capacitor(Fan Motor)  
Running Capacitor  
Propeller Fan Assy.  
Outdoor Fan Motor Assy.  
Compressor Assy.  
Power Relay  
67220183  
67220052  
-----  
19-2  
19-3  
26  
67210155  
67220186  
67220037  
67210034  
67220077  
67210113  
67210347  
-----  
67210155  
67220186  
67220037  
67210034  
67220077  
67210113  
67210347  
67220150  
67220083  
67220090  
67220061  
67210055  
67220041  
67220088  
67220025  
67210120  
67210116  
67210115  
67220188  
67210156  
67210155  
67220186  
67220082  
67210034  
67220077  
67210154  
67210347  
-----  
34  
37  
39  
41  
46  
218-3  
272  
343  
344  
519  
646  
Strainer  
Solenoid Coil  
-----  
-----  
4-Way Valve  
-----  
-----  
Check Valve Assy.  
Compressor Blanket - Top  
-----  
-----  
67210055  
67210055  
67220041  
67220088  
67220025  
67210120  
67210116  
67210115  
67220188  
67210156  
717  
815  
824  
81  
Center Plate  
Terminal-8P  
67220041  
67220088  
67220025  
67210120  
67210116  
67210115  
67220188  
67210156  
Fuse  
Strap  
109  
412  
N/S  
N/S  
Terminal Cover  
Terminal Cover Gasket  
Crankcase Heater  
Crankcase Heater Relay  
2003.06.19  
- 37 -  
P A R T S L I S T  
MR30C3E  
Reference No.  
Description  
Part No.  
2
Fan Cover  
67210040  
-------  
4
Emblem-Rear ”FRIEDRICH”  
Cabinet-C, Painted  
Panel (Top), Painted Metal  
Cabinet-B, Painted  
Base Assy. Painted  
3-Way Valve Assy.  
2-Way Valve Assy.  
Dryer  
6
67210039  
-------  
7
9
67210038  
67210036  
------  
12  
13  
14  
------  
15  
67210033  
67210035  
67230047  
------  
16  
Condenser Assy.  
Capillary Tube  
19  
519  
519  
26  
Restrictor Valve (Cap Tub)  
Restrictor Valve (Cap Tub)  
Compressor Cover  
Blower Cover  
------  
------  
30  
67210040  
67230046  
67230047  
67210034  
67210053  
67210050  
67210044  
------  
34  
Capacitor(Fan Motor)  
Running Capacitor  
Propeller Fan Assy.  
Fan Motor Assy.-OUT  
Compressor Assy.  
Power Relay  
37  
39  
41  
46  
218-3  
272  
343  
344  
519  
549  
646  
717  
734  
803  
805  
809  
810  
815  
824  
Q1  
T1  
Strainer  
Solenoid Coil  
------  
4-Way Valve  
------  
Check Valve Assy.  
Thermostat – Outdoor  
Compressor Cover-B  
Center Plate  
------  
67210054  
------  
------  
Cabinet Tip Plate  
Cabinet D Painted  
Blower Cover Corner  
Ball Valve A  
67210042  
67210048  
67210041  
67210003  
67210004  
67210032  
Ball Valve B  
Terminal-8P  
Fuse  
Xstr 2SC4236  
67220089  
67210028  
67220050  
67210023  
Transformer ETS28A118AH  
Buzzer  
BZ1  
13m 3 (6,&  
Relay JQ1-12V  
SSR-1  
F101  
Relay G3M-202P-US  
Fuse MT3 3A-250V  
67210024  
67210000  
2003.06.19  
- 38 -  
FRIEDRICH AIR CONDITIONING CO.  
Post Office Box 1540  
San Antonio, Texas 78295-1540 (210) 357-4400  
(210) 357-4480 Fax  
FRAC0306G2327-9/05  

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