'18 • PAC-SM-297
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28
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(5) Heating high pressure control
(a) Starting condition
When the indoor heart exchanger temperature (Thi-R) has risen to a specified temperature while the compressor is turned on.
(b)
Compressor speed is controlled according to the zones of indoor heat exchanger temperature as shown by the following
table.
(6) Heating overload protective control
(a)
Operating condition
(b) Detail of operation
H
13
90(75) rps
30(40) rps
40 rps.
fuzzy calulation, the speed is kept to 30(40) rps. However, when the thermostat OFF, the speed is reduced to
The outdoor fan speed is stepped down by 3 speed step.(Low limit 2nd speed)
(i)
(ii)
(iv)
Reset condition
11
H
11
13
16
17
OFF
Upper 75 rps
Lower 40 rps
Upper 90 rps
Lower 30 rps
Outdoor air temperature(ºC)
(c)
than that after
speed is
(iii)
0 rps.
Thi-R<P1
P1
≦
Thi-R<P2 P2
≦
Thi-R<P3
P3
≦
Thi-R
Protection control speed (NP)
Normal
Retention
NP-4rps
NP-8rps
Sampling time (s)
Normal
10
10
10
Thi-R
NP
P1
P2
P3
NP<50
45
52
54.5
50
≦
NP<115
45
52
57
115
≦
NP<120
45-43
52-50
57-55
120
≦
NP
43
50
55
Unit:°C
Summary of Contents for FDE40ZSXVH
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