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.
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