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19 

9 Adjustment button: 

The button is only for time adjustment. Push the 

  button, time increases.   

10 Adjustment button:   

The button is only for time adjustment. Push the 

  button, time decreases. 

 

11 LOCK button (hidden): 

Use a small stick with the diameter of 1mm to push the LOCK button to lock the current setting, push the 
button again then cancel the setting. 

17.2 Name and functions of LCD on wired controller 

1 Mode select display (MODE): 

Press MODE button to select “AUTO”, “HEAT RECOVERY”, "EXHAUST","BYPASS", or "SUPPLY” mode. 

2 Fan speed display (FAN SPEED) 

Press FAN SPEED to select fan speed from "

", "LOW"," MED”, and "HIGH". 

NOTE: "

" stand for fan working speed in sleep mode. 

3 Lock display 

Press LOCK to display the icon of LOCK. Press the button again then the icon of LOCK disappears. In the 
mode of LOCK, all the buttons are invalid except for LOCK button. 

4 CLOCK display 

Usually display the clock set currently. Press the button CLOCK for 4 seconds, the    HOUR part will flash, 
press button 

and

  to adjust HOUR. Press the button CLOCK again, the minute part flash, press button 

or

to adjust MINUTE. After clock set or clock operation, it must press CONFIRM to complete the set.   

5 TIMER ON/OFF display: 

Display ON at the state of TIMER ON adjustment or after only set the TIMER ON; Display OFF at the state 
of TIMER OFF adjustment or after only set the TIMER OFF; Display ON/OFF if simultaneously set the mode 
of TIMER ON and TIMER OFF. 

17.3 Installation 

Connection method and the principle diagram show as follow: 

Summary of Contents for OTEC ERVD Series

Page 1: ...ERVD ERVB Series 220 240V 1 50Hz Energy Recovery Ventilator Service Manual...

Page 2: ...1 Contents 1 Product Schedule 2 2 External appearance 2 3 Features 2 4 Dimensions 4 5 Troubleshooting 7 6 Maintenance 9 7 Controller 10 8 Accessory 12...

Page 3: ...utdoor air through the heat exchanged core in cross way because of temperature difference in the two sides of flat partition board the heat transmission is occurred In summer outdoor air acquire cooli...

Page 4: ...W W1 W2 H C G N N2 ERVD015A3N 744 675 599 657 315 270 100 19 144 111 ERVD020A3N 744 675 804 862 480 270 100 19 144 111 ERVD030A3N 824 754 904 960 500 270 107 19 194 111 ERVD050A3N 1116 1045 884 940 4...

Page 5: ...ERVB090A3N DCN150 ERVB120A3N DCN200...

Page 6: ...7 5 Maintenance Spaces...

Page 7: ...1 T4 sensor error 2 T1 sensor error 3 Current protection 4 Phase absent phase error Note Light Extinguish Slow flash Quick flash ERVD010 ERVD015 ERVD020 ERVD030 ERVD050 ERVD060 ERVB090 ERVB120 T1 temp...

Page 8: ...nsor is break off Connect the wiring well Yes No Check whether the resistance of temp sensor is wrong refer to the Annex 1 Yes Replace temp sensor No Replace main controller panel Current protection C...

Page 9: ...er to remove dust and foreign substance in the unit assemblies do not touch the assemblies by exhauster and flush by water to avoid core damage 4 Check the fan every half a year to maintain the well b...

Page 10: ...display 12 00 for the first electrifying or resetting When push the button for 4 seconds the hour part on the clock display flashes every 0 5 seconds then push button and to adjust hour Push the butt...

Page 11: ...p mode 3 Lock display Press LOCK to display the icon of LOCK Press the button again then the icon of LOCK disappears In the mode of LOCK all the buttons are invalid except for LOCK button 4 CLOCK disp...

Page 12: ...6 49 3161 21 12 0561 48 3 7348 5 46 5725 22 11 5 49 3 5896 4 44 23 10 9731 50 3 451 3 41 5878 24 10 4736 51 3 3185 2 39 8239 25 10 52 3 1918 1 37 1988 26 9 5507 53 3 0707 0 35 2024 27 9 1245 54 2 959...

Page 13: ...OMEGA ERVD ERVB Energy Recovery Ventilator Service Manual info otecvrf com www otecvrf com info otecomega com www otecomega com ERVDBA3N SM1D0622...

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