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FUSES: Refer to indoor unit installation instructions.
ADDING REFRIGERANT
1. The unit is fitted with head pressure control; before charging, isolate the outdoor unit and transfer the
motor wire on the head pressure control from terminal 4 to terminal 1. (Don't forget to transfer it
back after charging).
2. If a manual HP cutout is fitted, ensure that the reset button is depressed.
3. A 3 minute delay occurs between successive compressor operations.
4. R407C should be introduced through the Schrader valve on the indoor unit, or the service port on the
suction service valve on the outdoor unit. No other refrigerant must be used.
NOTE: LABEL R407C POE (supplied loose) TO BE FIXED ABOVE SERVICE VALVES.
CHARGE (g)
LIQUID LINE (m)
SYSTEM
5
10
15
20
No extra POE oil needed with liquid lines.
Charges shown are for guidance: actual charge will depend on
the individual application. It is recommended that you charge to a
sweat line on the outlet of the evaporator and/or a full sight glass
if fitted.
CX(E)30 + CKC20
1025
1140
1255
1370
CX(E)40 + CKC30
1230
1530
1830
2130
Liquid line
Expansion line
CX(E)50 + CKC50
1980
2280
2580
2880
1/4"
3/8"
3/8"
1/2"
5/8"
R407C
CX(E)70 + CKC80
2220
2520
2820
3120
Additional
charge
based
on:-
25 g/m
60 g/m
16 g/m
30 g/m
48 g/m
EXPANSION LINE (m)
SYSTEM
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
CX(E)30 + CKC20
990
1070
1150
1230
1310
1390
1470
1550
1630
1710
-
-
-
-
-
-
CX(E)40 + CKC30
1000
1220
1370
1520
1670
1820
1970
2120
2270
2420
2570
2720
2870
3020
3170
3320
CX(E)50 + CKC50
1940 2055 2205 2355 2505 2655 2805 2955 3105 3255 3495 3735 3975 4215 4455 4695
R407C
CX(E)70 + CKC80
2865 3015 3165 3315 3465 3615 3765 3915 4065 4215 4455 4695 4935 5175 5415 5655
CX(E)30 + CKC20
0
0
0
0
25
25
25
50
50
50
-
-
-
-
-
-
CX(E)40 + CKC30
0 0 0 0 50 50 50 50 100 100 100 100 100 150 150 150
CX(E)50 + CKC50
0
0
0
0
50
50
50
50
100
150
150
150
200
200
200
250
POE
OIL
(EXP.
LINE)
CX(E)70 + CKC80
0
0
0
0
50
50
100
100
100
150
150
150
200
200
200
250
☺
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