Johnson Controls HIDH018B21S, Engineering Manual

Page: 148 / 668

OUTDOOR UNITS
2-108
TC-15001-rev.3
6WDQGDUG2SHUDWLRQ6HTXHQFH
&RROLQJ2SHUDWLRQ
RUN indicator lights.
Power to
I.U. PCB: ON
only for Indoor Unit
with Auto-Louver
Auto - louver
0 Reset
COOL Indication
for Unit with Condensate Pump
HIGH Indication
LOW Indication
Indication of Set Temp.
MEDIUM
Indication
Start of Transmitting between
I.U. and O.U.
Start of Transmitting between
I.U. and Remote Control Switch
Low
High
Medium
ON
(Lower than
Activation Level)
OFF
(Higher than
Activation Level)
Switch: Increasing Set Temp.
Switch: Decreasing Set Temp.
Air Flow
Change Over
Switch
Set
Operation Mode
at “COOL”.
I.U.: Indoor Unit
O.U.: Outdoor Unit
Power to
I.U.: ON
Press
Temp. Switch
Press
FAN Switch
Press
RUN/STOP
Switch
Float Switch
to 1
Cooling
Operation
Higher than
Set Temp.
(Thermo-ON)
Lower than
Set Temp.
(Thermo-OFF)
Outdoor
Temp.
≤ -14°F
(-10°C)
I.U.
Air Intake
Temp.
> -14°F
(-10°C)
,
Hi Me Lo
Note
: For (H,Y)IDH018 ~ 048B21S, the fan speed is “HIGH” and “LOW” only.
By pressing the FAN SPEED SWITCH of Remote Control Switch, the indication of LCD
is changed as but the actual fan speed is as shown in the table right.
MD Operation: ON
No
Yes
3 min.
PID Control for I.U.
Electronic Expansion Valve
Thermo-OFF
MIF Operation at Set Fan Speed
Actual
Fan Speed
LCD
Indication
HIGH
MED
LOW
HIGH
HIGH
LOW
$LUÀRZ