Optional Parts - Mitsubishi Electric PKH18FK1 Technical & Service Manual

15

OPTIONAL PARTS

1. TIMER
When using a program timer, a program timer adapter (PAC-825AD) is also needed.
(PAC-825AD is included with PAC-SC32PTA.)
Part No.
Model Name
1-1 Program timer specifications
Parts name
Parts No.
Exterior dimensions (inch)
Installation
Type of clock
Clock accuracy
Display-Time
-Week
-Timer setting unit
Program cycle
Timer setting unit
No. of set points
Power rating
1-2 Feature of program timer
(1) Daily timer function
Daily timer can be set in 30 minutes units for up to 24 hours.
Each unit can be set for unit ON, unit OFF, or setback operation.
(2) Setback operation (PAC-SC32PTA)
Set back operation is useful for reducing running costs
e.g. At a hotel with a 24-hour system
8:00~23:00 Cooling operation with set temperature at 79°F
23:00~8:00 Setback operation with 4 degrees of setback
As shown in the chart on the right, the set temperature rises 4 degrees
automatically during the setback operation. When the setback operation
ends, normal operation will begin.
(3) Weekly timer function
Daily timer function can apply to each day of the week.
1-3 How to connect program timer
(1) Install the program timer next to the remote controller the same way as the remote controller is installed.
(2) Connect the program timer and the remote controller with a 5-wire cable as shown in the figure below
Connect to indoor unit
2-wire cable
FILTER
CHECK MODE
TEST RUN
4
Use 5-wire cable
Connect to CN1
Program timer
PAC-SC32PTA
5-4/32x4-23/32x23/32 (130x120x18mm)
Wall mount
Quartz
±50 second / month at 77°F
Liquid crystal display
Liquid crystal display
Liquid crystal display
24 hours
30 minutes
48 / day
5V DC ±5% (Supplied by Remote Controller)
NOTE:While the program timer is connected to the remote controller, the
24hour ON/OFF timer on the remote controller will not operate.
SET BACK
S M T W T F S
SET
0 3 6 12 15
MONITOR
12 15 18 21 24
WEEKLY DAILY
SET/MONITOR TODAY SETTING SET BACK ON
SETTING
ON SET BACK
CLOCK OFF DAILY TIMER OFF
PROGRAM TIMER
PAC-SC32PTA
Connect to CN1
PAC-SC32PTA (with set back function)
Program timer
83
79
OC193-68
˚
F
˚
F
8:00 23:00
Normal Setback
operation operation operation
8:00
Normal