Friedrich MR18C3E, MR30C3E, MW24C3E User Manual
SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED type
Reciprocating Compressor Models
Indoor unit Outdoor unit
MW18C3E MR18C3E
MW18Y3E MR18Y3E
MW24C3E MR24C3E
MW24Y3E MR24Y3E
MW30C3E MR30C3E
Rotary Compressor Models
Indoor unit Outdoor unit
MW18C3E MR18C3E-A
MW18Y3E MR18Y3E-A
MW24C3E MR24C3E-A
MW24Y3E MR24Y3E-A
CONTENTS
SPECIFICATIONS
OUTLINE AND DIMENSIONS
REFRIGERANT SYSTEM DIAGRAM
CIRCUIT DIAGRAM
INDOOR PRINTED CIRCUIT BOARD CIRCUIT DIAGRAM
ERROR DISPLAY
DISASSEMBLY ILLUSTRATION
PARTS LIST
1
3
4
9
14
17
18
35
SPECIFICATIONS
,
,
g1,
g1,
g
,
g2,
g2,
g
(
(
)
(
)
(
g
g
g
RECIPROCATING COMPRESSOR MODELS
TYPE COOL COOL & HEAT COOL COOL & HEAT COOL
INDOOR UNIT MW18C3E MW18Y3E MW24C3E MW24Y3E MW30C3E
OUTDOOR UNIT MR18C3E MR18Y3E MR24C3E M224Y3E MR30C3E
COOLI NG CAPACITY (BTU / h) 18,000 -17,000 17,500 - 16,500 23,000 - 22,500 23,000 - 22,500 29,500 - 28,700
HEATING CAPACITY (BTU / h) ----- 18,000 - 17500 ----- 23,500 - 22,500 -----
ELECTRICAL DATA
POWER SOURCE (V) 230 / 208
FREQUENCY (Hz) 60
RUNNING CURRENT (A)
INPUT WATTS (kW)
E.E.R. (BTU / h.W)
MOISTURE REMOVAL ( / hr) 2.0 1.8 2.7 2.7 4.3
AIR CIRCULATION - Hi (m / hr)
COMPRESSOR
TYPE Hermetic type, Permanent split condenser, 2 poles, Single phase, Induction motor, Recipro
CODE H25B18QABCA H25B18QABCA H25B24QABCA H25B24QABCA H25B35QABCA
REFRIGERANT R-22 (g) 1,700 2,250 2,200 2,350 1,900
COOLING 7.6 - 8.2 7.8 - 8.5 10.0 - 10.8 9.9 - 10.7 15.0 - 16.0
HEATI NG
COOLING 1.70 - 1.65 1.75 - 1.71 2.20 - 2.15 2.23 - 2.19 3.15 - 3.05
HEATI NG ----- 1.58 - 1.53 ----- 2.02 - 1.98 -----
COOLING
HEATI NG ----- 11.3 - 11.4 ----- 11.6 - 11.4 -----
3
----- 7.2 - 7.5 ----- 8.9 - 9.7 -----
10.6 - 10.3 10.0 - 9.65 10.5 - 10.5 10.3 - 10.3 9.37 - 9.41
800 800 1,100 1,100 1,100
FAN MOTOR
POWER SOURCE
INDOOR UNIT
OUTDOOR UNIT
DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT WIDTH inch (mm) 33 - 1/32" (840) 33 - 1/32" (840) 33 - 1/32" (840) 33 - 1/32" (840) 37 - 1/32" (940)
WEIGHTS
INDOOR UNIT
OUTDOOR UNIT
REFRIGERANT CHARGING
PIPE LENGTH
1
FULL
CHARGE 2,200 g 2
AMOUNT
2,350
1,900 g 1,943 g 2,028 g 2,113 g 2,198 g 2,283 g
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, 14.4 g (0.51 oz.) / 3.3 ft (1 m) for 18C Model, 12 g (0.42 oz.) / 3.3 ft (1 m) for 24C Model, and 17 g (0.60 oz.) /
3.3 ft (1 m) for 30C Model.
TYPE (r.p.m.) MFA-18FPH MFA-18FPH MFA-30FPH MFA-30FPH MFA-18FPH
HI-SPEED
MED-SPEED (r.p.m.) 840 - 750 840 - 750 1,130 - 1,030 1,130 - 1,030 1,130 - 1,030
LO-SPEED (r.p.m.) 720 - 580 720 - 580 990 - 870 990 - 870 990 - 870
TYPE
HEIGHT inch (mm) 12 - 19/32" (320) 12 - 19/32" (320) 12 - 19/32" (320) 12 - 19/32" (320) 12 - 19/32" (320)
WIDTH
DEPTH
HEIGHT inch (mm) 25 - 1/8" (643) 25 - 1/8" (643) 25 - 1/8" (643) 25 - 1/8" (643) 45 - 11/32" (1,152)
DEPTH inch (mm) 13 - 1/4" (336) 13 - 1/4" (336) 13 - 1/4" (336) 13 - 1/4" (336) 14 - 9/16" (370)
GROSS / NET lbs (kg)
MR18C3E
MR18Y3E
MR24C3E
MR24Y3E
MR30C3E
(V) 230 / 208
(r.p.m.)
(r.p.m.) 735 735 735 735 790
inch (mm)
inch (mm)
960 - 870 960 - 870 1,260 - 1,160 1,260 - 1,160 1,260 - 1,160
MFB-24FP MFB-24FP MFB-24FP MFB-24FP MFB-30BP
49 -7/32" (1,250) 49 -7/32" (1,250) 49 -7/32" (1,250) 49 -7/32" (1,250) 49 -7/32" (1,250)
7 - 11/16" (195) 7 - 11/16" (195) 7 - 11/16" (195) 7 - 11/16" (195) 7 - 11/16" (195)
55 / 40 (25 / 18) 55 / 40 (25 / 18) 55 / 40 (25 / 18) 55 / 40 (25 / 18) 55 / 40 (25 / 18)
163 / 145 (74 / 66) 165 / 147 (75 / 67) 165 / 147 (75 / 67) 167 / 150 (76 / 68) 238 / 207 (108 / 94)
25 ft. (7.5 m) 33 ft. (10 m) 49 ft. (15 m) 66 ft. (20 m) 83 ft. (25 m) 98 ft. (30 m)
700 g 1
(60.0 oz.) (61.1 oz.) (63.2 oz.) (65.3 oz.)
2,250 g 2,335 g 2,505 g 2,675 g
(79.4 oz.) (82.4 oz.) (88.4 oz.) (94.4 oz.)
77.6 oz.)
2,435 g2,605
(82.9 oz.) (85.9 oz.) (91.9 oz.) (97.9 oz.)
(67.0 oz.) (68.5 oz.) (71.5 oz.) (74.5 oz.) (77.5 oz.) (80.5 oz.)
730
230
78.7 oz.
790
290
80.8 oz.
850
350
82.9 oz.)
2,775
----- -----
----- -----
----- -----
2003.06.17 - 2 -
g
g
g
(
)
(
)
(
)
(
)
SPECIFICATIONS
ROTARY COMPRESSOR MODELS
TYPE
INDOOR UNIT MW18C3E MW18Y3E MW24C3E MW24Y3E
OUTDOOR UNIT MR18C3E-A MR18Y3E-A MR24C3E-A MR24Y3E-A
COOLI NG CAPACITY (BTU / h) 18,000 -17,000 17,500 - 16,500 23,000 - 22,500 23,000 - 22,500
HEATING CAPACITY (BTU / h) ----- 18,000 - 17500 ----- 23,500 - 22,500
ELECTRICAL DATA
POWER SOURCE (V)
FREQUENCY (Hz)
RUNNING CURRENT (A)
INPUT WATTS (kW)
E.E.R. (BTU / h.W)
MOISTURE REMOVAL ( / hr) 2.0 1.8 2.7
AIR CIRCULATION - Hi (m / hr)
COMPRESSOR
TYPE Hermetic type, Permanent split condenser, 2 poles, Single phase, Induction motor
CODE PH28NSGT PH28NSGT PH33NTJT PH33NTJT
REFRIGERANT R-22 (g) 1,700 1,900 2,000 2,200
FAN MOTOR
POWER SOURCE
INDOOR UNIT
OUTDOOR UNIT
TYPE
HI-SPEED
MED-SPEED (r.p.m.) 840 - 750 840 - 750 1,130 - 1,030 1,130 - 1,030
LO-SPEED (r.p.m.) 720 - 580 720 - 580 990 - 870 990 - 870
TYPE
COOLING 8.3 - 9.1 8.2 - 8.9
HEATI NG ----- 8.0 - 8.5
COOLING 1.91 - 1.87 1.89 - 1.84
HEATI NG ----- 1.82 - 1.77
COOLING 9.4 - 9.0 9.26 - 8.97
HEATI NG ----- 9.89 - 9.89
3
(V) 230 / 208
(r.p.m.)
(r.p.m.) 960 - 870 960 - 870 1,260 - 1,160 1,260 - 1,160
(r.p.m.) 735 735 735 735
COOL COOL & HEAT COOL COOL & HEAT
230 / 208
60
800 800 1,000 1,000
MFA-18FPHT MFA-18FPHT MFA-30FPHT MFA-30FPHT
MFB-24FP MFB-24FP MFB-24FP MFB-24FP
10.7 - 11.7 10.5 - 11.3
----- 9.9 - 10.4
2.41 - 2.40 2.34 - 2.29
----- 2.18 - 2.13
10.7 - 11.7 9.82 - 9.83
----- 10.8 - 10.6
2.7
DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT
WEIGHTS
INDOOR UNIT 40 (25 / 55 / 40 (25 / (25 / 18) (25 / 18)
OUTDOOR UNIT 163 / 145 (74 / 66) 165 / 147 (75 / 67) 165 /147 (75 / 67) 167 /150 (76 / 68)
REFRIGERANT CHARGING
PIPE LENGTH
1,700 g 1,736 g 1,808 g 1,880 g
FULL 1,900
CHARGE
AMOUNT
2,200 g 2,285 g 2,455 g 2,625 g
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 -
HEIGHT inch (mm) 12 - 19/32" (320) 12 - 19/32" (320) 12 - 19/32" (320) 12 - 19/32" (320)
WIDTH inch (mm) 49 -7/32" (1,250) 49 -7/32" (1,250) 49 -7/32" (1,250) 49 -7/32" (1,250)
DEPTH
HEIGHT inch (mm) 25 - 1/8" (643) 25 - 1/8" (643) 25 - 1/8" (643) 25 - 1/8" (643)
WIDTH inch (mm) 33 - 1/32" (840) 33 - 1/32" (840) 33 - 1/32" (840) 33 - 1/32" (840)
DEPTH inch (mm) 13 - 1/4" (336) 13 - 1/4" (336) 13 - 1/4" (336) 13 - 1/4" (336)
GROSS / NET lbs (kg)
MR18C3E-A
MR18Y3E-A
MR24C3E-A
MR24Y3E-A
inch (mm)
7 - 11/16" (195) 7 - 11/16" (195) 7 - 11/16" (195) 7 - 11/16" (195)
55 / 18) 18) 55 /40 55 / 40
25 ft. (7.5 m) 33 ft. (10 m) 49 ft. (15 m) 66 ft. (20 m)
(60.0 oz.) (61.2 oz.) (63.7 oz.) (66.3 oz.)
1,985 g2,155
(67.0 oz.) (70.0 oz.) (76.0 oz.) (82.0 oz.)
2,000 g 2,030 g 2,060 g 2,120 g
67.0 oz.
(77.6 oz.) (80.6 oz.) (86.6 oz.) (92.6 oz.)
71.6 oz.
72.7 oz.
2,325
74.8 oz.
odels
A
ode
OU30C
Models : ASU18C1, ASU18R1
Models: MW18C3E, MW18Y3E
MW24C3E, MW24Y3E
MW30C3E
ASU24C1, ASU24R1
ASU30C1
OUTLINE AND DIMENSIONS
Unit : inch (mm)
Models: MR18C3E, MR18C3E-A
MR18Y3E, MR18Y3E-A
M
: AOU18C1, AOU18R1, AOU18R1
MR24C3E, MR24C3E-A
MR24Y3E, MR24Y3E-A
AOU24C1, AOU24R1, AOU24R1A
14-9/16"(336)
Model: MR30C3E
M
l : A
1
2003.06.18 - 3 -
REFRIGERANT SYSTEM DIAGRAM
Models: MW18C3E / MR18C3E
Models: MW18Y3E / MR18Y3E
Models: MW24C3E / MR24C3E
Models: MW24Y3E / MR24Y3E
Models : ASU24R1 / AOU24R1
2003.08.27 - 5 -
Model: MW30C3E / MR30C3E
2003.08.27 - 6 -
Models : MW18C3E / MR18C3E-A
Models : MW18Y3E/ MR18Y3E-A
2003.08.27 - 7 -
Cooling
Heating
: Flare coupling
Models : MW24C3E / MR24C3E-A
Models : MW24Y3E / MR24Y3E-A
2003.08.27 - 8 -
Cooling
Heating
: Flare coupling
Models: MW18C3E / MR18C3E
MW24C3E / MR24C3E
Models: MW18Y3E / MR18Y3E
MW24Y3E / MR24Y3E
Models: MW30C3E / MR30C3E
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