II - 8
Processes and Functions
SM830063
2
7. Outdoor Electronic Control Valve
(1) When the outdoor unit stops in cooling mode: 480 pulses
When the outdoor unit stops in heating mode: 0 pulses
(2) In cooling operation mode: 480 pulses
In heating operation mode: control of degree of superheating (∆T = gas temperature - liquid temperature) of the heat
exchanger
¶ ∆T should be 2 to 6 deg (that can be changed depending on the operation capacity).
¶ Control range: 75 to 480 pulses
SPW-CR903GVH8 SPW-CR703GVH8
Current capacity (kw) Set ∆ T (deg) Current capacity (kw) Set ∆ T (deg)
or more 25.2 kw 3 or more 22.4 kw 2
19.6~25.2 kw 4 16.8~22.4 kw 3
14~19.6 kw 5 11.2~16.8 kw 4
less than 14 kw 6 less than 11.2 kw 6
8. Liquid Valve Control
(1) This controls the compressor discharge temperature as shown in the right diagram.
(2) Liquid valve is OFF when in defrosting mode.
70
OFF OFFON
Liquid
valve
Compressor discharge temperature (°C)
95
1266_M_I
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