4
4)) S
Se
ec
co
on
nd
d S
Stta
ag
ge
e H
He
ea
attiin
ng
g O
Op
pe
erra
attiio
on
n - When the ICC receives a call for second
stage heating operation, “H” is displayed on the dual 7-segment LEDs.
“H” indicates second stage heating operation
5
5)) D
De
effrro
os
stt O
Op
pe
erra
attiio
on
n – When the ICC starts a defrost cycle, a lower case “d” is
displayed on the dual 7-segment LEDs.
Lower case “d” indicates defrost operation (in heating mode)
3
3--m
miin
nu
utte
e A
An
nttii--s
sh
ho
orrtt C
Cy
yc
clle
e T
Tiim
me
err
• The ICC has a built in 3-minute time delay between compressor operations to
protect the compressor against short cycling. The dual 7-segment LEDs will flash
“c”, “C”, “h”, or “H” while the short cycle timer is active and a call for unit operation
is received.
Flashing lower case c
A call for first stage cooling has been received
Flashing upper case C
A call for second stage cooling has be received
Flashing lower case h
A call for first stage heating has been received
Flashing upper case h
A call for second stage heating has been received
• The 3-minute time delay can be bypassed when a call for compressor operation is
present by pressing the TEST button for 1 second and releasing. The compres-
sor will begin operation and the dual 7-segment will stop flashing.
3
30
0 S
Se
ec
co
on
nd
d M
Miin
niim
mu
um
m R
Ru
un
n T
Tiim
me
err
• The ICC has a built in 30 second minimum unit run time. If a call for compressor
operation is received by the ICC and the call is removed, the compressor will con-
tinue to operate for 30 seconds. The dual 7-segment LEDs will flash “c”, “C”, “h”,
or “H” while the minimum run timer is active.
1
1 S
Se
ec
co
on
nd
d C
Co
om
mp
prre
es
ss
so
orr//F
Fa
an
n D
De
ella
ay
y
• The ICC starts/stops the outdoor fan one (1) second after the start/stop of the
compressor upon a call for compressor operation to minimize current inrush
and/or voltage drop.
3
“h2” indicates second stage heating operation
5)
Defrost Operation
– When the ICC starts a defrost cycle, a lower case “d” is displayed
on the 7-segment LEDs.
Lower case “d” indicates defrost operation (in heating mode)
3-minute Anti-short Cycle Timer
•
The ICC has a built in 3-minute time delay between compressor operations to protect the
compressor against short cycling. The 7-segment LEDs will flash “c”, “C”, “h1”, or “h2
while the short cycle timer is active and a call for unit operation is received.
Flashing lower case c
A call for first stage cooling has been received
Flashing upper case C
A call for second stage cooling has be received
Flashing lower case h and 1
A call for first stage heating has been received
Flashing lower case h and 2
A call for second stage heating has been received
2
Zero (0) displayed
The unit is in standby
Call for Compressor Operation (Y1 LED)
•
If a call for compressor operation is received by the ICC (first stage/second stage cooling or
first stage/second stage heating), the red Y1 LED will illuminate.
•
The ICC has an on/off fan delay of one (1) second for each stage of heating or cooling.
•
The ICC ignores the lower pressure control for the first 90 seconds of compressor operation.
•
On heat pumps, the ICC ignores the LPC during the defrost cycle.
•
The 7-segment LED can display five (5) codes during a call for unit operation:
1)
First Stage Cooling Operation
– When the ICC receives a call for first stage cooling
operation, a lower case “c” is displayed on the 7-segment LEDs.
Lower case “c” indicates first stage cooling operation
2)
Second Stage Cooling Operation
– When the ICC receives a call for second stage
cooling operation, an upper case “C” is displayed on the 7-segment LEDs.
Upper case “C” indicates second stage cooling operation
3)
First Stage Heating Operation
- When the ICC receives a call for first stage heating
operation, “h1” is displayed on the 7-segment LEDs.
“h1” indicates first stage heating operation
4)
Second Stage Heating Operation
- When the ICC receives a call for second stage
heating operation, “h2” is displayed on the 7-segment LEDs.
3
“h2” indicates second stage heating operation
5)
Defrost Operation
– When the ICC starts a defrost cycle, a lower case “d” is displayed
on the 7-segment LEDs.
Lower case “d” indicates defrost operation (in heating mode)
3-minute Anti-short Cycle Timer
•
The ICC has a built in 3-minute time delay between compressor operations to protect the
compressor against short cycling. The 7-segment LEDs will flash “c”, “C”, “h1”, or “h2
while the short cycle timer is active and a call for unit operation is received.
Flashing lower case c
A call for first stage cooling has been received
Flashing upper case C
A call for second stage cooling has be received
Flashing lower case h and 1
A call for first stage heating has been received
Flashing lower case h and 2
A call for second stage heating has been received
3
“h2” indicates second stage heating operation
5)
Defrost Operation
– When the ICC starts a defrost cycle, a lower case “d” is displayed
on the 7-segment LEDs.
Lower case “d” indicates defrost operation (in heating mode)
3-minute Anti-short Cycle Timer
•
The ICC has a built in 3-minute time delay between compressor operations to protect the
compressor against short cycling. The 7-segment LEDs will flash “c”, “C”, “h1”, or “h2
while the short cycle timer is active and a call for unit operation is received.
Flashing lower case c
A call for first stage cooling has been received
Flashing upper case C
A call for second stage cooling has be received
Flashing lower case h and 1
A call for first stage heating has been received
Flashing lower case h and 2
A call for second stage heating has been received
H
H
C
O
N
V
E
N
T
IO
N
A
L
T
H
E
R
M
O
S
T
A
T
W
IR
IN
G
32
Содержание PRL-series
Страница 52: ...FIGURE 11 WIRING DIAGRAM FOR 2 3 4 TON 19 0 WIRING DIAGRAMS 52 ...
Страница 53: ...FIGURE 12 WIRING DIAGRAM FOR 5 TON 53 ...
Страница 54: ...54 ...
Страница 55: ...55 ...
Страница 56: ...56 CM 1108 ...