Marstair CKC 20 1/50 User manual

1 55008418-01
TECHNICAL MANUAL
CKC CONDENSING UNITS

2 55008418-01
INDEX
CONTENTS PAGE
UNIT PART NUMBERS, FEATURES & OPTIONS 3
KITS 4
DIMENSIONS & WEIGHTS (packed & unpacked) 4
SPECIFICATION 5
PERFORMANCE DATA 6
MOUNTING CKC, DIMENSIONS & WEIGHTS CKC 7
PIPEWORK 10
PIPE SIZES, CONNECTING THE UNITS & EVACUATING 11
ELECTRICAL 12
REFRIGERANT 13
COMPONENT IDENTIFICATION CKC 16
GENERAL
1.
Marstair Ltd recommend that personnel working on this equipment be skilled and fully conversant
with the appropriate Air Conditioning, Refrigeration and Electrical practices and have sound
knowledge of current Industrial Safe Working practices.
2.
These units are supplied pre-charged with R407C refrigerant and polyolester oil.
Do not open the valves until the system is fully installed.
Do not mix oils or refrigerants.
3.
These units contain live electrical components, moving parts and refrigerant under pressure.
Always site out of reach of children and protect from vandalism.
4.
The data plate only gives information for the outdoor unit. For system details add input power and
current of indoor and outdoor unit, including any heater load.
5.
FUSES- for recommended fuse size see indoor unit instructions.

3 55008418-01
PART NUMBERS
MODEL
SINGLE (1ph)
PHASE
(1ph) PART
NUMBER
THREE PHASE (3ph)
PART NUMBER
CKC 15 1/50
55020769
55020774
CKC 20 1/50
55020720
55020775
CKC 30 1/50
55020730
55020776
CKC 40 1/50
55020741
55020777
CKC 50 1/50
55020722
55020724
CKC 60 1/50
55020740
55020778
CKC 80 1/50
55020723
55020774
CKC 90 1/50
55020771
55020775
CKC 100 3/50
-
55020779
CKC 130 3/50
-
55020780
CKC 150 3/50
-
55020781
CKC 165 3/50
-
55020782
CKC 180 3/50
-
55020783
CKC 200 3/50
-
55020784
Expansion Device Part Numbers
MODEL
(1ph) PART
NUMBER
CKC 15 1/50
55023323
CKC 20 1/50
55023323
CKC 30 1/50
55023324
CKC 40 1/50
55023325
CKC 50 1/50
55023327
CKC 60 1/50
55023328
CKC 80 1/50
55023329
CKC 90 1/50
55023330
CKC 100 3/50
55023331
CKC 130 3/50
55023332
CKC 150 3/50
55023333
CKC 165 3/50
55023334
CKC 180 3/50
55023335
CKC 200 3/50
-
FEATURES AND OPTIONS
DESCRIPTION
CKC
Easy access for installation and service

Suction and liquid services valves

Expansion device (orifice type)

Pre-charged with refrigerant

Capacitor start relay 1ph

PTC resistor 1ph

Head pressure control

LP cut-out auto

HP cut-out auto

Isolator

3 minute start time delay

Wall mount brackets

Contactor

Over load (standard on 3ph)

Low ambient start

= Standard = Option

4 55008418-01
KITS
CKC
DESCRIPTION
MODEL
PART NUMBER
Pressure switch (HP manual)
All
55000398
Volt free relay
All
55000395
Wall mount brackets
15-80
55021100
90-200
55021101
Overload (standard on 3ph)
15
55000409
20-30
55000410
40-60
55000446
80-90
55000449
PTC (hard start 1ph)
15-40
55000412
CSR (hard start 1ph)
15,20,40
55000414
30
55000415
Isolator for remote mounting
1ph 15-60
55000419
1ph 80-90
55000418
3ph All
55000419
Compressor jacket
Reciprocating 15-40
55000454
Scroll 50-80
55000455
Scroll 90-180
55000456
Scroll 200
55000457
UNPACKED
CKC CONDENSING UNITS
MODEL
15
20
30
40
50
60
80
90
100
130
150
165
180
200
HEIGHT
620
620
620
620
720
720
720
820
820
1080
1080
1080
1275
1275
WIDTH mm
900
900
900
900
1000
1000
1000
1000
1000
1000
1000
1000
1100
1100
DEPTH mm
300
300
300
300
300
300
300
350
350
425
425
425
425
425
1 Ph kg
45
46
48
53
64
65
66
76
-
-
-
-
-
-
3 Ph kg
-
-
48
53
62
63
64
73
81
101
103
103
118
173
PACKED
CKC CONDENSING UNITS
MODEL
15
20
30
40
50
60
80
90
100
130
150
165
180
200
HEIGHT mm
620
620
620
620
720
720
720
820
820
1080
1080
1080
1280
1280
WIDTH mm
980
980
980
980
1080
1080
1080
1090
1090
1090
1090
1090
1215
1215
DEPTH mm
340
340
340
340
340
340
340
390
390
465
465
465
465
465
1 Ph kg
47
48
50
55
66
67
68
78
-
-
-
-
-
-
3 Ph kg
-
-
50
55
64
65
66
75
83
105
107
107
123
178
DIMENSIONS & WEIGHTS CKC

5 55008418-01
PERFORMANCE DATA
CKC
15
20
30
40
50
60
80
90
100
130
150
165
180
200
Nominal cooling capacity
kW
2.5
2.8
3.7
4.2
5.8
7.0
7.4
8.2
10.9
12.4
13.9
14.7
17.1
19.9
R407C charge supplied
g
660
1030
1000
1240
1690
2000
1880
2060
2520
4170
4170
4540
4640
5480
Operating weight kg
1Ph
45
46
48
53
64
65
66
76
-
-
-
-
-
-
3Ph
-
-
48
53
62
63
64
73
81
101
103
103
118
173
1 Ph (230V 50Hz)
Power(nominal)
kW
1.1
1.6
1.6
2.1
2.0
2.4
3.0
4.2
-
-
-
-
-
-
Starting current LRA
A
23
28
36
50
58
61
76
114
-
-
-
-
-
-
Nominal current FLA
A
5.9
6.9
8.1
10.2
8.9
9.8
11.5
16.9
-
-
-
-
-
-
3Ph (400v 50Hz)
Power(nominal)
kW
-
-
1.6
2.0
1.9
2.4
3.0
4.1
4.3
4.4
5.3
6.0
7.0
9.4
Starting current LRA
A
-
-
18
22
26
32
40
48
51
62
68
71
71
98
Nominal current FLA
A
-
-
3.6
4.8
4.2
4.2
4.9
7.1
7.2
7.7
8.7
9.5
11.9
16.9
Sound Pressure Levels (SPL) at 10m distance in free field conditions.
Fan speed max
dBA
39.2
39.2
39.3
39.2
38.9
39.3
38.7
42.2
43.0
41.9
42.2
42.2
42.9
43.2
Condenser fan (1Ph 230V 50Hz)
Airflow (max speed)
m³/s
0.97
0.97
0.97
0.97
0.97
0.97
0.97
0.97
0.97
1.85
1.85
1.85
1.85
1.85
Fan motor rating
kW
0.13
0.13
0.13
0.13
0.13
0.13
0.13
0.24
0.24
2x0.13
2x0.13
2x0.13
2x0.24
2x0.24
Nominal current FLA
A
0.6
0.6
0.6
0.6
0.6
0.6
0.6
1.0
1.0
2x0.60
2x0.60
2x0.60
2x1.00
2x1.00
Fans: No. x diameter
#x mm
1x457
1x457
1x457
1x457
1x457
1x457
1x457
1x508
2x457
2x457
2x457
2x457
2x508
2x508
Fans max speed
r.p.m
760
760
760
760
910
910
910
950
950
910
910
910
950
950
SPECIFICATION DETAILS

6 55008418-01
CKC 15 –200 CAPACITIES
MODEL
AIR ON TO
CONDENSER
°C
SATURATED SUCTION TEMPERATURE °C
-2.5
0
2.5
5
7.5
10
COOLING CAPACITY AND POWER INPUT kW
CAP.
POWER
CAP.
POWER
CAP.
POWER
CAP.
POWER
CAP.
POWER
CAP.
POWER
CKC 15
25
1.93
0.69
2.14
0.70
2.35
0.70
2.55
0.71
2.76
0.72
2.96
0.72
30
1.81
0.74
2.01
0.75
2.21
0.76
2.41
0.77
2.61
0.78
2.81
0.79
35
1.69
0.79
1.89
0.80
2.08
0.81
2.27
0.83
2.46
0.84
2.65
0.86
40
1.58
0.84
1.76
0.86
1.95
0.88
2.13
0.90
2.32
0.91
2.50
0.93
45
1.46
0.90
1.64
0.92
1.82
0.94
2.00
0.97
2.18
0.99
2.36
1.01
CKC 20
25
2.25
0.80
2.49
0.81
2.71
0.81
2.96
0.82
3.22
0.84
3.49
0.85
30
2.08
0.84
2.31
0.86
2.54
0.87
2.78
0.89
3.01
0.90
3.26
0.92
35
1.94
0.90
2.16
0.92
2.38
0.93
2.61
0.95
2.84
0.97
3.05
0.98
40
1.83
0.98
2.04
0.99
2.25
1.01
2.46
1.03
2.66
1.05
2.86
1.06
45
1.73
1.07
1.92
1.08
2.11
1.09
2.30
1.11
2.49
1.13
2.68
1.15
CKC 30
25
2.87
1.02
3.22
1.05
3.53
1.06
3.74
1.04
4.12
1.07
4.49
1.10
30
2.71
1.10
3.06
1.13
3.27
1.12
3.51
1.12
3.84
1.15
4.19
1.18
35
2.59
1.20
2.82
1.20
3.03
1.19
3.36
1.23
3.68
1.26
3.79
1.22
40
2.38
1.27
2.17
1.32
2.80
1.26
3.12
1.31
3.32
1.31
3.62
1.35
45
2.11
1.30
2.43
1.36
2.53
1.31
2.84
1.37
CKC 40
25
3.38
1.13
3.70
1.15
4.02
1.16
4.35
1.18
4.67
1.19
5.00
1.21
30
3.19
1.22
3.50
1.24
3.81
1.26
4.11
1.28
4.42
1.30
4.73
1.32
35
3.01
1.31
3.30
1.33
3.59
1.36
3.88
1.38
4.17
1.41
4.46
1.43
40
2.84
1.40
3.11
1.43
3.37
1.47
3.63
1.50
3.89
1.53
4.15
1.56
45
2.68
1.51
2.91
1.55
3.15
1.58
3.38
1.62
3.61
1.66
3.85
1.70
CKC 50
25
4.57
1.87
5.09
2.03
5.51
2.14
5.97
2.25
6.41
2.38
6.79
2.51
30
4.34
1.95
4.75
2.09
5.25
2.19
5.63
2.32
6.04
2.45
6.49
2.58
35
3.94
2.00
4.42
2.13
4.91
2.24
5.29
2.36
5.75
2.49
6.09
2.65
40
3.76
2.05
4.22
2.18
4.58
2.29
5.04
2.41
5.39
2.58
5.69
2.74
45
3.50
2.12
3.93
2.22
4.37
2.35
4.69
2.48
CKC 60
25
5.43
2.22
6.02
2.27
6.61
2.31
7.21
2.37
7.80
2.42
8.39
2.47
30
5.06
2.46
5.64
2.51
6.22
2.56
6.80
2.62
7.39
2.67
7.97
2.73
35
4.77
2.72
5.33
2.78
5.89
2.83
6.45
2.89
7.01
2.95
7.57
3.01
40
4.39
3.01
4.91
3.07
5.43
3.13
5.95
3.19
6.47
3.26
6.99
3.32
45
4.02
3.32
4.49
3.40
4.97
3.46
5.45
3.53
5.93
3.60
CKC 80
25
6.07
2.26
6.64
2.31
7.21
2.37
7.79
2.42
8.36
2.47
8.93
2.53
30
5.68
2.49
6.23
2.54
6.77
2.60
7.32
2.66
7.87
2.71
8.42
2.77
35
5.28
2.72
5.81
2.78
6.33
2.83
6.86
2.89
7.38
2.95
7.91
3.01
40
4.90
3.03
5.39
3.10
5.88
3.16
6.37
3.23
6.86
3.29
7.35
3.36
45
4.52
3.35
4.97
3.42
5.43
3.49
5.88
3.56
6.33
3.63
CKC 90
25
7.16
2.89
7.71
2.95
8.26
3.01
8.81
3.06
9.36
3.12
9.91
3.18
30
6.69
3.17
7.21
3.24
7.74
3.30
8.27
3.36
8.79
3.42
9.32
3.48
35
6.22
3.46
6.72
3.52
7.22
3.59
7.72
3.65
8.23
3.72
8.73
3.78
40
5.80
3.79
6.27
3.86
6.74
3.93
7.22
4.00
7.69
4.07
8.17
4.14
45
5.38
4.12
5.82
4.20
6.27
4.27
6.71
4.34
7.16
4.42
7.60
4.49
CKC 100
25
7.87
3.18
9.10
3.42
10.40
3.66
11.52
3.87
12.61
3.87
13.83
3.86
30
7.60
3.23
8.73
3.88
9.68
3.81
10.71
4.05
11.66
4.18
12.71
4.29
35
7.00
3.24
8.06
3.56
9.03
3.87
9.92
4.13
10.91
4.31
11.89
4.52
40
6.17
3.16
7.12
3.54
8.14
3.86
8.91
4.17
9.86
4.47
10.80
4.75
45
5.12
2.95
6.18
3.47
7.07
3.89
7.89
4.25
CKC 130
25
9.69
3.14
10.71
3.46
11.72
3.73
12.76
4.01
13.71
4.28
14.56
4.54
30
9.09
3.16
10.07
3.46
11.11
3.74
12.12
4.08
13.05
4.36
13.93
4.68
35
8.27
3.27
9.32
3.61
10.27
3.91
11.34
4.25
12.41
4.56
13.29
4.91
40
7.61
3.29
8.58
3.65
9.54
4.01
10.44
4.31
11.46
4.68
45
6.89
3.34
7.63
3.68
8.68
4.09
CKC 150
25
11.06
3.73
12.26
4.13
13.26
4.46
14.30
4.82
15.24
5.15
16.19
5.47
30
10.42
3.75
11.52
4.14
12.56
4.48
13.57
4.88
14.56
5.24
15.48
5.63
35
9.46
3.89
10.59
4.32
11.61
4.68
12.69
5.08
13.77
5.47
14.77
5.90
40
8.70
3.90
9.79
4.35
10.76
4.78
11.67
5.15
45
7.90
3.98
8.89
4.40
CKC 165
25
11.97
4.13
13.30
4.57
14.29
4.95
15.32
5.36
16.26
5.73
17.28
6.09
30
11.31
4.15
12.49
4.59
13.52
4.98
14.54
5.42
15.57
5.82
16.51
6.26
35
10.26
4.30
11.44
4.79
12.51
5.19
13.59
5.64
14.67
6.08
15.75
6.56
40
9.43
4.31
10.60
4.81
11.58
5.29
12.49
5.17
45
8.57
4.41
CKC 180
25
13.42
4.71
14.97
5.12
16.28
5.45
17.63
5.79
18.86
6.13
20.27
6.47
30
12.74
4.75
14.13
5.16
15.39
5.51
16.76
5.90
18.08
6.26
19.34
6.64
35
11.52
4.94
12.94
5.38
14.34
5.76
15.67
6.16
17.12
6.56
18.51
6.98
40
10.63
4.96
11.97
5.44
13.28
5.89
14.43
6.26
15.95
6.74
17.31
7.18
45
9.72
5.10
10.95
5.61
12.17
6.09
13.31
6.49
14.63
6.98
CKC 200
25
15.28
5.37
16.96
5.90
18.96
6.47
21.12
6.87
22.34
7.28
23.48
7.65
30
14.42
5.41
16.01
5.92
17.73
6.41
19.75
6.96
21.18
7.40
22.52
7.88
35
13.13
5.51
14.68
6.17
16.49
6.68
18.30
7.23
19.88
7.74
21.48
8.27
40
12.03
5.62
13.59
6.24
15.13
6.82
16.58
7.31
18.33
7.92
45
10.99
5.78
12.36
6.42
13.80
7.03
NOTE: OPERATION IN THE SHADED AREAS OF THE TABLE WILL RESULT IN UNACCEPTABLY HIGH CONDENSING TEMPERATURE
AND SHOULD BEAVOIDED.

H
G
MOUNTING
HOLES
MOUNTING CKC
These units are designed to stand on a flat surface. If the unit is to be wall mounted the following kits are
available.
KIT
CKC 15-80
CKC 90-200
Mounting Bracket
55021100
55021101
Whether floor or wall mounted, it is essential that the mounting surface is capable of supporting the unit
weight. Leave space around the unit for air circulation and access for installation and maintenance.
Dimensions in mm.
DIMENSIONS & WEIGHTS CKC
CKC 15-100 (Dimensions in mm.)
H1
G1
MOUNTING
HOLES
MODEL
A
B
C
D
E
F
G
H
G1
H1
Weight (kg)
1 Ph
3 Ph
CKC 15
900
300
560
525
185
60
333
308
295
275
45
--
CKC 20
900
300
560
525
185
60
333
308
295
275
46
--
CKC 30
900
300
560
525
185
60
333
308
295
275
48
48
CKC 40
900
300
560
525
185
60
333
308
295
275
53
53
CKC 50
1000
300
660
570
213
60
333
308
295
275
64
62
CKC 60
1000
300
660
570
213
60
333
308
295
275
65
63
CKC 80
1000
300
660
570
213
60
333
308
295
275
66
64
CKC 90
1000
350
760
495
250
70
383
358
345
325
76
73
CKC 100
1000
350
760
495
250
70
383
358
345
325
--
81
100 min
100 min
600 min
1500 min air off
OLD STYLE FEET NEW STYLE FEET

8 55008418-01
CKC 130 –200 (Dimensions in mm.)
10
425
10 425
433
458
397
417
MOUNTING
HOLES
OLD STYLE FEET
MOUNTING
HOLES
NEW STYLE FEET
MODEL
A
B
C
D
E
Weight (kg)
CKC 130
1000
1020
495
251
100
101
CKC 150
1000
1020
495
251
100
103
CKC 165
1000
1020
495
251
100
103
CKC 180
1100
1215
675
211
95
118
CKC 200
1100
1215
675
211
95
173
A
C
D
E
60
B
60
B

9 55008418-01
SUSPENSION MOUNTED
The installer must supply 4 x M8 threaded rods with 16 nuts and washers to suit.
IMPORTANT
• The stabilizing brackets provided must be used when suspending a unit.
• Fit the stabilizing brackets to the top corners of the backpanel and front face using the No 10 screws
provided, (2 per bracket)
• If these brackets are omitted the unit will be subject to unacceptable movement on compressor start.
Where long drops of M8 rod are used, it is advisable
to incorporate flexible pipes in the suction and
expansion lines to absorb any movement of the unit.
Using the template printed on the side of the packing
carton, (centres marked A), mark out the ceiling and
drill 4 holes to suit M8 screwed rods.
Raise the unit to the required height and pass the
screwed rods through the mounting holes in the units
feet and stabilizing brackets.
Secure the unit with a nut and washer on either side
of each stabilizing bracket and two nuts and washers
underneath each foot mounting hole, (as shown).

10 55008418-01
PIPEWORK
Supplied male flare connections (sizes in inches)
Model
CKC
Size
15
20
30
40
50
60
80
90
100
130
150
165
180
200
Expansion
3/8
3/8
3/8
3/8
3/8
3/8
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
Suction
3/8
3/8
1/2
1/2
1/2
5/8
5/8
5/8
3/4
3/4
3/4
3/4
7/8*
7/8*
* Brazed connections
MAXIMUM PIPE RUNS
80m maximum (CKC 15-20 = 50M) including 20m lift. There will be no significant loss of capacity for
extended pipe runs provided pipes are correctly sized and the correct restrictor is fitted.
CALCULATING EQUIVALENT LENGTHS
The effects of bends and fittings must be taken into account. The table on top of page 5 covers the fittings
most likely to be encountered in installation.
ACTUAL PIPE LENGTH + TOTAL EQUIVALENT FITTING LENGTHS = TOTAL EQUIVALENT LENGTH
FITTING LOSSES in equivalent straight lengths of pipes (m)
TOTAL =
Pipe sizes are based on:
Minimum of 2.5 m/s (500 fpm) suction gas velocity for horizontal or downflow.
Minimum of 5.0 m/s (1000 fpm) suction gas velocity for upflow.
Maximum of 20.0 m/s (4000 fpm) suction gas.
Where vertical risers exceed 3m, oil traps must be formed in the pipe. This will help ensure that oil returns to
the compressor. Typically fit an oil trap every 3m with a trap at the bottom of the riser.
GOOD PRACTICE
• Keep pipe runs as short as possible.
• Avoid sharp bends
• Fully insulate both suction and expansion including mechanical connections
• Try to avoid running pipes through hot areas.
FITTING
PIPE SIZE (outside diameter in inches)
INSTALLERS TABLE
Nº OF
FITTINGS
EFFECTIVE
LENGTH
⅜
½
⅝
¾
⅞
1⅛
45° Bend
0.12
0.15
0.18
0.21
0.24
0.30
90° Bend R/d = 1
0.37
0.43
0.49
0.55
0.61
0.79
90° Bend R/d = 2
0.24
0.27
0.30
0.37
0.43
0.52
180° Bend C/d = 1
0.73
0.91
1.10
1.28
1.46
1.83
180° Bend C/d = 2
0.46
0.55
0.64
0.76
0.85
1.07
90° Elbow
0.67
0.85
1.04
1.25
1.46
1.89
R = Radius of bend
d = Diameter of tube
C = Centres of bend

11 55008418-01
PIPE SIZES
UNIT
SIZE
MAXIMUM LENGTH OF EQUIVALENT
SUCTION LINE PIPE SIZES (m)
EXPANSIONLINES
⅜
½
⅝
¾
⅞
1⅛
1⅜
⅜
½
⅝
¾
15
7.5
30
50
50
20
7.5
23
50
50
30
15
50
80
50
80
40
10
36
80
7.5
80
50
7.5
18
50
80
7.5
50
80
60
14
36
80
7.5
50
80
80
11
30
80
50
80
90
10
25
55
80
20
80
100
7.5
22
45
80
15
80
130
15
30
80
12
60
80
150
12
27
80
8
50
80
165
8
18
60
80
7.5
40
80
180
7.5
16
55
80
7.5
35
80
200
15
50
80
7.5
30
80
RESTRICTORS
Outdoor units (cool only) have optional kit expansion assemblies with cooling restrictors fitted.
CKC
15
20
30
40
45
50
60
80
90
100
130
150
165
180
200
Restrictor
0.033
0.033
0.040
0.044
0.046
0.050
0.052
0.057
0.063
0.068
0.071
0.080
0.082
N/A
CONNECTING THE UNITS
1. Ensure both service valves on the unit are closed (clockwise) before
commencing installation.
2. If a expansion assembly requires cleaning:
a. Remove the entire expansion assembly from the outdoor unit.
b. Split the expansion assembly in the middle and remove the existing
restrictor.
c. Drop the new restrictor vertically into the field connector.
d. Reassemble in the vertical plane (field connector lowest) when
reassembled the restrictor can be heard to be free to move if the
assembly is shaken.
e. Refit the expansion assembly.
RESTRICTOR
REFRIGERANTF
3. Connecting the pipework:
a. Remove the flare nuts from the suction service valve and the expansion
device as appropriate.
b. Ensure that both the suction and expansion lines are fully insulated.
c. Place the flare nuts over the incoming pipework and flare the pipe ends.
d. Connect the pipework between the units. Do not leave pipes ends, valves etc open to the
atmosphere. Always use 2 spanners when tightening the flare nuts to avoid twisting the pipes.
Use a small amount of refrigerant oil on the mating surfaces.
e. Sight glasses and filters driers are not necessary, but if required should be fitted between the
outoor unit liquid shut off valve and the expansion device on the CKC units.
f. CKC 180 & 200 have a ⅞¨ suction pipe with brazed connections. Use a protective shield to avoid
scorching the side panel.
EVACUATING
With the valves closed, connect a vacuum pump to the service ports on the outdoor unit valves. Evacuate
the interconnecting pipework and indoor unit to 1000 microns (1 Torr) or better. Allow this to be held for a
minimum of 15 minutes.

12 55008275-17
ELECTRICAL
The installer supplies mains, control and interconnecting cables: equipment must be earthed.
Wiring must be carried out in accordance with local and national codes.
Interconnecting wiring diagrams are in the indoor unit installation instructions.
Mains supply cables must be size compatible with the recommended fuse (see indoor unit instructions).
An all pole isolator switch should be positioned within easy reach of the indoor unit.
Cable clamps for use with stranded cables are supplied in units 15 - 90 and should be used to secure
incoming/outgoing cables. Installers must supply a method of securing solid sheathed cables.
THREE PHASE UNITS WITH SCROLL COMPRESSORS:
On 3 Ph units sizes 50 - 200 it is possible for the scroll compressor to run backwards.
This becomes obvious on start up - the compressor will not develop a normal running pressure differential
and the top will not become warm: it may be excessively noisy. If this happens, switch off the mains power
and exchange the two supply phases not connected to the indoor unit. This will correct the rotation.
SYSTEMS INCLUDING AN ELECTROMECHANICAL UNIT:
These require a supply to the outdoor unit with connecting cables run to the indoor unit.
ISOLATOR SWITCHES:
On 3 phase systems ensure that the neutral contact of the isolator switch is an early make, late break type.
This applies to all switches in the supply line. Failure to observe this could result in damage to the
electronic board. If in doubt, do not switch the neutral but connect it solidly.
1PH FUSE SIZE
CKC
15
20
30
40
50
60
80
90
100
130
150
165
180
200
FUSE
16
16
16
20
16
20
25
32
-
-
-
-
-
-
3PH FUSE SIZE
CKC
30
40
50
60
80
90
100
130
150
165
180
200
FUSE
10
10
10
10
10
16
16
16
20
20
25
32

13 55008418-01
REFRIGERANT
IF NO ADDITIONAL REFRIGERANT CHARGE IS REQUIRED:
Open the valves very slowly using a 5 or 8mm Allen key. Replace the caps on the service ports, (torque to
25NM).
IF ADDITIONAL REFRIGERANT IS REQUIRED:
1. After evacuating the indoor unit and interconnecting pipework, slowly open the valves using 5 or 8mm
Allen key. The high and low pressure should equalise within a minute.
2. Additional charge should be introduced with the system running in the air conditioning mode
(including heat pumps). See indoor unit instruction for additional system charge.
3. All units are fitted with head pressure control. The link wire across the orange terminals
allows the fan to operate at full speed. THIS SHOULD BE REMOVED AFTER CHARGING
4. ADDITIONAL REFRIGERANT - pipe runs over 7.5m.
Add refrigerant and oil for each additional metre over 7.5m, based on the following:
5. If a manual HP cutout is fitted, ensure that the reset button is depressed.
6. A random start delay of up to 1 minute occurs when mains is first applied. A 3 minute delay occurs
between successive compressor operations on all systems.
7. Additional refrigerant and polyolester oil should be introduced through the Schrader valve on the
indoor unit, or the service port on the suction service valve on the outdoor unit. Ensure the
refrigerant is the correct type, as shown on the rating plate. R407C must always be added in the
liquid state.
8. Run the system for a few minutes to allow it to stabilize. Where possible, charge to a sweat line on the
evaporator. Typical suction pressures on short lines at UK conditions, with high speed evaporator fan,
high speed condenser fan, should be; electromechanical comfort system approx 4.4 bar (65 psig);
electronic comfort system approx 3.8 bar (55 psig); heat pump system approx (58 psig). Systems
should not be overcharged, to avoid liquid return to the compressor.
FACTORY CHARGE
FOR 7.5M RUNS AT UK
CONDITIONS
CKC
gms
15
660
20
1030
30
1000
40
1240
50
1690
60
2000
80
1880
90
2060
100
2520
130
4170
150
4170
165
4540
180
4640
200
5480
Expansion line size.
3/8"
1/2"
5/8"
Additional refrigerant (g/m).
16
30
48
Additional POE oil
25g per 350g of additional
refrigerant to a maximum of 300g
Additional polyolester oil:
L’Unite 181-023,
ICI Emkarate RL32S or
RL32CF, Mobil Arctic
EAL22 or EAL22C.

14 55008275-17
9. HEAD PRESSURE CONTROL SAGINOMIYA (RGE –ZIN4 –SH)
The head pressure controller is factory set to suit the refrigerant. It may be necessary to adjust this to
suit site conditions, to raise or lower the nominal head pressure.
a. With the system switched off, connect a high pressure gauge to the liquid line service valve.
b. Switch on the system, indoor fan set to high speed, and run for a few minutes to stabilise.
c. The head pressure should be approximately:
R407C: 275-280 psig (18.9-19.6barg) to achieve this adjust the screw clockwise to increase pressure or
anticlockwise to decrease. Each ½ turn will alter the pressure by approx 5 psig (0.5 barg)
Min fan speed (0 rpm) and fan cut in pressure 200 psig (13.8 barg) are factory set and not adjustable.
NOTE: The condenser fan may stop if the operating pressure drops below 200 psig (13.8 barg)

15 55008418-01
10. HEAD PRESSURE CONTROL ALCO (FSY-42S) & SAGINOMIYA (XGE-4C)
The head pressure controller is factory set to suit the refrigerant. It may be necessary to adjust this to suit site
conditions, to raise or lower the nominal head pressure.
ALCO (FSY-42S)
a. With the system switched off, connect a high pressure gauge to the liquid line service valve.
b. Switch on the system, and run for a few minutes to stabilise.
c. The head pressure should be approximately:
Min fan speed (0 rpm) and fan cut in pressure 200 psig (13.8 barg) are factory set and not adjustable.
NOTE: The condenser fan may stop if the operating pressure drops below 200 psig (13.8 barg)
R407C: 275-280 psig (18.9-19.6barg) to achieve this remove sealing plug and insert 2mm or 5/64”
allen key into setting screw. Turn allen key clockwise (+) or counter clockwise (-) to readjust the setting.
Do not turn setting screw more than 3 turns clockwise (+3). Use following table as a quick guideline for setting:
Pressure changes per turn of adjusting screw:
Pressure change: 9.2 … 21.2 bar:
Clockwise ~ +2,5 bar, counter clockwise ~ -2,5 bar
After adjustment, re-insert sealing plug and make sure that it is properly fitted. IP65 protection
requires firmly sealed plug
NOTES:
Tolerances for condensing temperatures setpoint: ±2K
SAGINOMIYA (XGE-4C)
R407C: 275-280 psig (18.9-19.6barg) to achieve this turn the range adjusting screw clockwise (+)
for increasing the setting value or counter clockwise (-) for decreasing the setting value.
Pressure changes per 1 turn of adjusting screw:
Pressure change: 10 … 25bar:
Clockwise ~ +1.5 bar, counter clockwise ~ -1.5 bar

16 55008418-01
COMPONENT IDENTIFICATION
CKC 15 - 100
1
LID
18
HANDLE
2
CONTACTOR
19
FRONT ACCESS
3
OVERLOAD
20
FAN GUARD
4
HEAT EXCHANGER COIL
21
FASCIA PANEL
5
REAR ACCESS PANEL
22
CORNER PANEL
6
MAINS TERMINAL COVER
23
SUPPORTBRACKET
7
FANCAPACITOR
24
FAN / MOTOR ASSEMBLY
8
BULKHEAD PANEL
25
END CLAMP
9
HP SWITCH (MANUAL, OPTION)
26
TERMINAL
10
EXPANSIONASSEMBLY
27
FUSE
11
SERVICE VALVE (LIQUID)
28
FUSE TERMINAL
12
SERVICE VALVE (SUCTION)
29
TERMINAL (4 WAY)
13
VALVE PANEL
30
EARTHTERMINAL
14
BASE
31
HEAD PRESSURE CONTROL pcb
15
MOUNTINGFOOT
32
3 MINUTE TIMER pcb
16
LP SWITCH
33
COMPRESSOR CAPACITOR
17
COMPRESSOR
34
ELECTRICS BOX

17 55008418-01
CKC 130 –200
1
LID
19
VALVE PANEL
2
FUSE TERMINAL
20
BASE
3
FUSE
21
MOUNTINGFOOT
4
TERMINAL
22
LP SWITCH
5
TERMINAL (4 WAY)
23
COMPRESSOR
6
CONTACTOR
24
HANDLE
7
EARTHTERMINAL
25
FRONT ACCESS PANEL
8
END CLAMP
26
FAN GUARD
9
OVERLOAD
27
FASCIA PANEL
10
HEAT EXCHANGER COIL
28
CORNER PANEL
11
FANCAPACITOR
29
SUPPORTBRACKET
12
MAINS TERMINAL COVER
30
FAN / MOTOR ASSEMBLY
13
REAR ACCESS PANEL
31
HEAD PRESSURE CONTROL pcb
14
BULKHEAD PANEL
32
POWER BOARD (MHPUE)
15
HP SWITCH (MANUAL, OPTION)
33
3 MINUTE TIMER pcb
16
EXPANSIONASSEMBLY
34
COMPRESSOR CAPACITOR
17
SERVICE VALVE (EXPANSION)
35
ELECTRICS BOX
18
SERVICE VALVE (SUCTION)