DEI-757 Operating Manual

DEI-757 Operating Manual
POWER
TEMP SET
SPEED
LOCK
LOCK
MODE
F/C NO.
TIMER
TIMER
F/C NO.
LINK
F/C NO.
TEMP. SET
C/Hr
TIMER
ROOM TEMPERATURE CONTROLLER
FUNC.
POWER
OFF
HEAT
FAN
COOL
HIGH
MED
LOW
AUTO
WASH
POWER
FAN
UN-757
POWER button
button. Press this button to turn on or turn off all fan coil units
sequently.
TEMP SET button
button. Press or button to increase or decrease setting
temp value which shown on Right Display. Without repressing any
button within 5 secs, the Display will come back to show room temp.
FAN SPEED SELECT button
button. Press this button to select the desired
fan speed i.e. AUTO, HIGH, MID, LOW. AUTO mode works only in
Cool or Heat state.
MODE SELECT button
button. Press this button to select the desired mode
i.e. Cool or Fan.
TIMER SET button
button. Press this button in Power-Off state to preset ON
time, while in Power-On state, press it to preset OFF time. The setting
value, shown on Right Display, is between 1~24 hrs. Without repressing
any button within 5 secs, the Display will come back to show room temp.
FAN COIL SELECT button
button. Press this button to select in cycle the fan
coil nos. which shown on Left Display, meanwhile, the accordant temp.
value to each fan coil unit will be normally shown on Right Display
unless the fan coil is in damage or not interlocked.
RENEW WASH CYCLE button
button. When Filter LED lit, it is time to be
washed. After cleaning the filter, press this button to renew the cycle.
* Keep holding this button for 5 seconds can lock all the setting value,
and only F/C NO. and WASH buttons can be still operated. Press it
again for 5 seconds to unlock the setting value.
The Left Display always shows the fan coil unit number..
The Right Display shows room temp. or setting temp. or setting time
according to operating mode. Without pressing any button within 5 secs.
after finishing setting, the Display will come back to show room temp.
DIPSW setting :
1. ON = Used for one to one direct expand cooler. "3-minutes-delay
start protect" is embedded.
OFF= Used for ice water system or multi-fan coil system. No start
protect is embedded.
2. ON = 3-way valve is used. Keep sending low speed fan when reach
setting temp.
OFF= No 3-way valve is used. Stop sending fan when reach setting temp.
3. ON = Ice water system interlock control is used.
OFF= Multi-fan coil system is used.
4. ON = Cool and heat type.
OFF= Cool type only.