Venting VHBQi-D015TFA User manual

Models:
VENTING VHBQi-D015TFA, VENTING VHBQi-D025TFA
VENTING VHBQi-D035TFA, VENTING VHBQi-D050TFA
VENTING VHBQi-D065TFA, VENTING VHBQi-D080TFA
VENTING VHBQi-D100TFA, VENTING VHBQi-D150TFA
VENTING VHBQi-D200TFA
Attention
Please read this manual carefully before using the equipment
Steelso d.o.o.
Technical Manual of Venting
Energy Recovery Ventilator

Safety Considerations------------------------------------------------------------3,4
Unit Specifications--------------------------------------------------------------- 5,6
Dimensioned Drawings----------------------------------------------------------7,8
Installation Considerations--------------------------------------------------9,10,11
Electrical Installation--------------------------------------------------------------12
Wiring Diagrams---------------------------------------------------------------13,14
Commissioning Information------------------------------------------------------15
Controller Instruction-------------------------------------------------------16 to 19
Dial switch------------------------------------------------------------------------20
Maintenance ----------------------------------------------------------------------21
Contents

Please read the following safety instructions before installation. And ensure that the unit is installed
correctly.
Please observe all instruction in order to avoid any injury or damage to equipment or property.
Safety attentions
The following symbols indicate potential levels of caution.
Situations with a risk or death or
serious injure. Situations with a risk of injury or equipment/property damage.
The following symbols indicate compliance which must be observed
Not allowed or Stop Must follow or obliged
Installation to be carried out by qualified
person, End Users must not install, move or
re-install this equipment by themselves
An anti-bird net or similar device should be
installed to outside vents. Ensure there are
no obstructions to or in the ducts
Installation engineers must follow this man-
ual strictly. Improper action can create a
health hazard and reduce efficiency of the
unit
Fresh air vent must be far enough away
from any flue gas discharge or areas where
hazardous vapors are present
Unit must be installed strictly following this
manual and mounted to a weight bearing
surface for the weight of the unit
Electric engineering must follow national
regulations and the manual, use special ca-
bles. Less capacity cables and improper en-
gineering can cause electric shock or fire.
During maintenance or repair, the unit and
circuit breaker must be switched off. Other-
wise electric shock could occur.
Ground wire cannot be connected to gas
pipe, water pipe, lighting rod or telephone
line etc. Incorrect grounding can cause
electric shock.
Power cable and wires must be installed by
a qualified electrical engineer. Improper
connection can cause over heating. Fire and
loss of efficiency.
To avoid condensation, insulation should be
fitted to fresh air ducts. Other ducting may
also require insulation depending on dew
point conditions.
Insulation between the metal ducting and
wall penetration must be installed if the
ducting penetrates metal wall cladding, to
avoid risk of electric shock or current leak-
age.
The cover of wiring box must be pressed
down and closed to avoid dust and dirt en-
tering. Excess dust and dirt can cause over-
heating of terminals and result in fire or
electric shock.
Use only approved installation hardware
and accessories. Failure to observe can re-
sult in fire risk, electric shock and equip-
ment failure
Where the unit is positioned, at high level in
a hot humid situation. Please ensure suffi-
cient ventilation is available
The outdoor ducts must be installed facing
downwards to avoid rain water entering.
Improper installation can cause water leak-
age.
Correctly sized MCB must be fitted to the
unit suitable earth leakage protection
should also be installed to avoid risk of elec-
tric shock or fire.
3
Safety Considerations

Safety Considerations
Do not install the unit in an extremely hu-
mid conditions, as it may result in electric
shock and pose a fire risk.
Do not use the units as the primary kitchen
extract grease and fatty deposits can block
the heat exchanger, filter and pose a fire
risk.
Don not install the unit in areas there any
poisonous or caustic gases are present.
Do not install the unit near open flame as it
may result in over heating and pose a fire
risk
Acidic or alkali environments can cause
poisoning or a fire
Rated supply voltage must be maintained,
otherwise this may cause fire.
4
Safety Considerations

5
Specifications
Model VENTING VHBQi-
D015TFA
VENTING VHBQi-
D025TFA
VENTING VHBQi-
D035TFA
VENTING VHBQi-
D050TFA
Performance
Airflow (m3/h) 100/150/150 200/250/250 300/350/350 400/500/500
Airflow (l/s) 27/41/41 55/69/69 83/97/97 111/138/138
Enth. Eff (%) Heating 70/63/63 73/65/65 73/65/65 75/67/67
Cooling 65/60/60 71/62/62 70/62/62 72/63/63
Temp. Eff (%) 80/75/75 81/73/73 82/74/74 81/76/76
Noise Db(A) 25/30/31.5 27/34/34.5 31/37/37.5 29/35/39
Power Supply 220~240V/1Ph/50Hz
Input Power (W) 105 117 150 200
Power Cable 2x1.5mm2
Control Cable 2x0.5mm2
Control
Standard Yes (7-Day Time-clock)
(BMS)
Modbus Yes
Fan Type AC Fan Motors
Fan Speeds (Supply) 3 Speeds Individual Control
Fan Speeds (Exhaust) 3 Speeds Individual Control
Summer Bypass Yes (Automatic with adjustable range)
Defrost Yes (Automatic with adjustable range)
CO2 Control Optional controller available (On / Off control with adjustable range)
Fan Boost Contacts Yes (3x available connections to Volt-Free Contacts: Closed = Boost to High Speed)
Fire Shutdown Yes (1x available connection to Volt-Free Contact: Closed = Shutdown)
Weight (Kg) 23 25 31 36
Size (LxWxH) 666x580x264 744x599x270 744x804x270 824x904x270
Duct Size 150 150 200 200

6
Specifications
Model VENTING VHBQi
-D065TFA
VENTING VHBQi
-D080TFA
VENTING VHBQi-
D100TFA
VENTING VHBQi-
D150TFA
VENTING VHBQi-
D200TFA
Performance
Airflow(m3/h) 550/650/650 680/800/800 840/1000/1000 1260/1500/1500 1600/2000/2000
Airflow (l/s) 152/180/180 188/222/222 233/277/277 351/416/416 444/555/555
Enth. Eff (%)
Heating 71/65/65 73/65/65 72/62/62 73/65/65 72/62/62
Cooling 67/60/60 71/63/63 68/60/60 71/63/63 68/60/60
Temp. Eff (%) 82/74/74 80/74/74 80/76/76 80/74/74 80/76/76
Noise Db(A) 37/40/43 37/40/43 36/42/44 39/41/44 40/44/48
Power Supply 220~240V/1Ph/50Hz
Input Power (W) 355 585 690 1170 1380
Power Cable 2x1.5mm2
Control Cable 2x0.5mm2
Control
Standard Yes (7-Day Time-clock)
(BMS)
Modbus Yes
Fan Type AC Fan Motors
Fan Speeds (Supply) 3 Speeds Individual Control
Fan Speeds (Exhaust) 3 Speeds Individual Control
Summer Bypass Yes (Automatic with adjustable range)
Defrost Yes (Automatic with adjustable range)
CO2 Control Optional controller available (On / Off control with adjustable range)
Fan Boost Contacts Yes (3x available connections to Volt-Free Contacts: Closed = Boost to High Speed)
Fire Shutdown Yes (1x available connection to Volt-Free Contact: Closed = Shutdown)
Weight (Kg) 60 60 79 130 175
Size (LxWxH) 1116x884x388 1126x834x388 1129x1216x388 1427x891x776 1429x1273x776
Duct Size 250 250 250 Square flange Square flange

VENTING VHBQi-D015TFA to VENTING VHBQi-D065TFA
7
Dimensioned Drawings
Electric
Box
EA
OA
EA
OA SA
RA RA
SA
Electric
Box
Model ABCEFGIKMN
VENTING VHBQi-D015TFA 580 666 100 725 510 19 290 20 264 φ144
VENTING VHBQi-D025TFA 599 744 100 675 657 19 315 111 270 Φ144
VENTING VHBQi-D035TFA 804 744 100 675 862 19 480 111 270 Φ144
VENTING VHBQi-D050TFA 904 824 107 754 960 19 500 111 270 φ194
VENTING VHBQi-D065TFA 884 1116 85 1045 940 19 428 170 388 φ242
Electric
box
E
A
O
A
S
A
R
A
Model LL1 WW1 HH1 NCDEFG
VENTING VHBQi-
D080TFA 1126 1056 834 891 388 169 Φ242 86 157 152 436 21
VENTING VHBQi-
D100TFA 1129 1060 1216 1273 388 171 Φ242 86 147 152 621 21
VENTING VHBQi-D080TFA to VENTING VHBQi-D100TFA

Dimensioned Drawings
VENTING VHBQi-D150TFA
8
北京环都人工环境科技有限公司
型 号
设计
编号
校对
审核型号
名称
项目
名称
数量
新风换气机
XHBQ-D15TZ
台湾日立 H-110728-20
1
焓回收率%
功率 KW
57
0.8
噪声 dB(A) 41
电压 V 220
重量 Kg 130
电流 A 5.6
机外余压Pa 75
1500
风量m3/h
温度回收率 % 68
制冷
制热
55
高特高 低
1500 1260
100 70
55 58
57 64
68 75
44 39
OA
EA
SA
RA
北京环都人工环境科技有限公司
型 号
设计
编号
校对
审核型号
名称
项目
名称
数量
新风换气机
XHBQ-D15TZ
台湾日立 H-110728-20
1
焓回收率%
功率 KW
57
0.8
噪声 dB(A) 41
电压 V 220
重量 Kg 130
电流 A 5.6
机外余压Pa 75
1500
风量m3/h
温度回收率 % 68
制冷
制热
55
高特高 低
1500 1260
100 70
55 58
57 64
68 75
44 39
OA
EA
SA
RA
VENTING VHBQi-D200TFA
北京环都人工环境科技有限公司
型 号
设计
编号
校对
审核型号
名称
项目
名称
数量
新风换气机 XHBQ-D20TZ
台湾日立 H-110728-21
1
焓回收率%
功率 KW
61
0.8
噪声 dB(A) 44
电压 V 220
重量 Kg 175
电流 A 6.6
机外余压Pa 68
2000
风量m3/h
温度回收率 % 69
制冷
制热
57
高特高 低
2000 1600
95 58
57 60
61 63
69 75
48 40
SA
RA
OA
EA
北京环都人工环境科技有限公司
型 号
设计
编号
校对
审核型号
名称
项目
名称
数量
新风换气机 XHBQ-D20TZ
台湾日立 H-110728-21
1
焓回收率%
功率 KW
61
0.8
噪声 dB(A) 44
电压 V 220
重量 Kg 175
电流 A 6.6
机外余压Pa 68
2000
风量m3/h
温度回收率 % 69
制冷
制热
57
高特高 低
2000 1600
95 58
57 60
61 63
69 75
48 40
SA
RA
OA
EA

Installation Considerations
Protect the unit to avoid dust or other obstructions entering the unit and accessories during installation,
or whilst in storage on site. Service ports should be installed to allow access for filter maintenance.
9
Installation Considerations
EA
RA
OA
SERVICE PORT
EA
SA RA
OA
SERVICE PORT
SA
Model AInner ceiling
height B
VENTING VHBQi-
D015TFA 580 320
Model AInner ceiling
height B
VENTING VHBQi-
D025TFA 599 320
VENTING VHBQi-
D035TFA 804 320
VENTING VHBQi-
D050TFA 904 320
VENTING VHBQi-
D065TFA 884 450
VENTING VHBQi-
D080TFA 834 450
VENTING VHBQi-
D100TFA 1216 450
VENTING VHBQi-
D150TFA 834 826
VENTING VHBQi-
D200TFA 1216 826
EA
RA
OA
SERVICE PORT
EA
SA RA
OA
SERVICE PORT
SA

天花板吊装螺杆
(Φ10-Φ12)
螺母
垫圈
吊装部件
垫圈
螺母
Suspending screw pole
Nut
Gasket
Suspending Part
Gasket
Nut
Installation Diagram
Fresh Air In
Exhaust Air Out
Outside Fresh Air Duct
Insulation Discharge Duct
Suspending Pole
Fresh Air Duct
Exhaust Duct
Return Air Supply Air
Return Air
Supply Air
Physical Installation
1.Installer to prepare suitable threaded hangers with adjustable nuts and gaskets.
2.Install as shown by the image above. Installation must be level and securely fastened.
3.Failure to observe proper fixing could result in injury, equipment damage and excessive vibration.
Uneven installation will also effect damper operation.
Notes for reverse installation of the unit
4.Reverse labeling shows the unit is upside down.
Ducting
1. Connection of unit vents and ducts should be taped or sealed to prevent air leakage, and should com-
ply to relevant guidelines and regulations.
2. The two outdoor vents should face downward toward the outside to prevent any rain water ingress.
(angle 1/100 1/50).
3. Insulation must be with the two ducts outside to prevent condensation.
Material: glass cotton, Thickness: 25mm
Installation Considerations
10
坡度1/100-1/50
Gradient1/100-1/50

1. Be sure the ceiling height is no less than the Figures in above table B column.
2. Unit must not be installed close to boiler flues.
3. Following phenomenon should be avoided in the ducting installation.
Serve bends Multiple reducers/ crimped duct
Multiple direction changes
4. Exessive use of flex-duct and long flex-duct runs should be avoided.
5. Fire dampers must be fitted as per national and local fire regulations.
6. Unit must not be exposed to ambient temperature above 40℃ and should not face an open fire.
7. Take action to avoid dew and frost.
As shown by drawing below, unit will produce dew or frost when saturation curve is formed from A to C.
Use pre-heater to ensure conditions are kept to right of the curve (B to B＇,to move C to C) to prevent
condensation or frost formation.
8. To avoid the outdoor exhaust air cycling back
to indoor, the distance between the two vents
installed on the outside wall should be over 1000mm.
9.If heater is equipped to the unit, operation of heater should be synchronous with the unit, so that the
heater starts to work only when unit starts.
10.Duct muffler may be considered if user wants indoor noise to be minimized.
Installation Considerations
11

Power must be isolated during installation and before maintenance to avoid injury by electric shock. The
specifications of cables must strictly match the requirements, otherwise it may cause performance fail-
ure and danger of electric shock or fire.
Power supply is AC220V/50HZ/1 Phase. Open the cover of electrical box, connect the 2 wires (L/N/) to
the terminals and connect the cable of the control panel to the board according to the wiring diagram,
and join the control panel to the cable.
We do not accept any liability for any problems caused by the user’s self and non-authorized re-
engineering to the electrical and control systems.
12
Electrical Installation
Model Capacitor Power Supply Control Panel Model
VENTING VHBQi-D015TFA
~D025TFA 1.5μF450V AC
220-240V/1Ph/50Hz
Standard intelligent
Controller (HDK-10)
VENTING VHBQi-D035TFA 3μF450V AC
VENTING VHBQi-D050TFA 3.5μF450V AC
VENTING VHBQi-D065TFA 8μF450V AC
VENTING VHBQi-D080TFA 8μF450V AC
VENTING VHBQi-D100TFA 10μF450V AC
VENTING VHBQi-D150TFA 8μF450V AC
VENTING VHBQi-D200TFA 10μF450V AC
Model Spec. of power supply
cable
Spec. of normal controller
cable
VENTING VHBQi-D015TFA
2×1.5mm2 2×0.5mm2
VENTING VHBQi-D025TFA
VENTING VHBQi-D035TFA
VENTING VHBQi-D050TFA
VENTING VHBQi-D065TFA
VENTING VHBQi-D080TFA
VENTING VHBQi-D100TFA
VENTING VHBQi-D150TFA
VENTING VHBQi-D200TFA

VENTING VHBQi-D015TFA to VENTING VHBQi-D100TFA
13
Wiring Diagrams
IEC127fuseT8AL250V
UL-fuse 8A 250V FUSE
IEC127fuseT8AL250V
UL-fuse 8A 250V
PORT 4PORT 3
PORT 2PORT 1
L N
12V A GNDB
2015.03.10
AN2
AN1 AN3 AN4
COMM1S1
S2
*
*
C02
*
KTK-HQ-546 V4.4
CN10
CN8
CN12
CN11
CN9
CM-DM
CN-SAFM
CN-EAFM
LD4
LD3
CN13
CN3 CN7 CN6 CN4
CN5
94V0
CN2
SW4
CN27
WIFI
Control
panel ports
Differential pressure
switch
External switch
By-pass switch
Fire alarm signal input
Fault signal output
Running signal output
RS485
ports
CO2 sensor
OA temp.
FR(EA) temp.
RA temp.
SA temp.
SA
FAN
By-pass
EA
FAN
Electrical
heater signal
Humiditysensor
WIFI
1. SW4-1: OFF-Traditional defrost ON-Electrothermal defrost
2. SW4-2: OFF-Auto by-pass ON-manunal by-pass(by-pass switch)
3. SW4-3: OFF-Humidity sensor ON-Humidity and temperature sensor (RA temp. will not be used)
4. SW4-4 : OFF-Baud rate:4800 ON-Baud rate:9600
SW4
421 3
Dial switch
ON
Dial switch
L
N
Exhaust fan
Supply fan
M1
M2
Joint of control panel and cable
Standard length: 5m
Black
Black
White
White
Yellow
Yellow
Blue
Blue

Wiring Diagrams
VENTING VHBQi-D150TFA to VENTING VHBQi-D200TFA
14
IEC127fuseT8AL250V
UL-fuse 8A 250V FUSE
IEC127fuseT8AL250V
UL-fuse 8A 250V
PORT 4PORT 3
PORT 2PORT 1
L N
12V A GNDB
2015.03.10
AN2
AN1 AN3 AN4
COMM1S1
S2
*
*
C02
*
KTK-HQ-546 V4.4
CN10
CN8
CN12
CN11
CN9
CM-DM
CN-SAFM
CN-EAFM
LD4
LD3
CN13
CN3 CN7 CN6 CN4
CN5
94V0
CN2
SW4
CN27
WIFI
Control
panel ports
Differential pressure
switch
External switch
By-pass switch
Fire alarm signal input
Fault signal output
Running signal output
RS485
ports
CO2 sensor
OA temp.
FR(EA) temp.
RA temp.
SA temp.
SA
FAN
By-pass
EA
FAN
Electrical
heater signal
Humiditysensor
WIFI
1. SW4-1: OFF-Traditional defrost ON-Electrothermal defrost
2. SW4-2: OFF-Auto by-pass ON-manunal by-pass(by-pass switch)
3. SW4-3: OFF-Humidity sensor ON-Humidity and temperature sensor (RA temp. will not be used)
4. SW4-4 : OFF-Baud rate:4800 ON-Baud rate:9600
SW4
421 3
Dial switch
ON
Dial switch
L
N
By-pass
GM
White
Yellow
Black
Exhaust fan
Supply fan
M1
M2
Black
White
Yellow
Blue
Supply fan
M1
Exhaust fan
M2
By-pass
GM
Control panel
Joint of control panel and cable
Standard length: 5m

Check that all cable sizes, circuit breakers and wire connections are correct before following below com-
missioning steps:
1. Press the power button once for starting; twice for closing. In On status, the light of power in-
dicator is on, while in OFF status, the light is off.
2. Match the correct fan speeds displayed on LCD controller. Press button for 6 seconds to enter
parameter settings and at this time the parameter number is shown in the middle of the screen,
press button to switch to parameter No. 23 (refer to parameters list in comming page) then
press to enter the parameter setting, default value flash at the right corner, press UP and
DWON buttons to change the value to be “1”(3 speeds control) then press button again to
confirm setting.
3. Then check the mode and fan speed switch. Press button to switch , or mode,
check whether the temperature of the corresponding mode is correct. Press to switch the fan
speed of and , check if the airflow is adjusted corresponding to high speed, medium speed or
low speed.
4. Check the operation of bypass. The default opening temperature of bypass is 19-21C (adjustable),
press button to check the temperature of . If the is 19-21C, the bypass will open auto-
matically. If the outdoor temperature is not within 19-21C, then adjust the bypass opening temper-
ature according the current temperature to check the bypass function.
5. Bypass open temperature setting: press more than 6 seconds to enter the parameter setting
mode. Press twice to switch the parameter number from 00 to 02, the value flashes shown at
the right corner, the default value is 19. Then press to modify the value according to the cur-
rent temperature by pressing up-down button and press to save the data. At the same time,
check the bypass is opened or not. Please remember to modify the bypass opening temperature to
19-21 after the commissioning.
Loose or incorrect wiring connection can
cause explosion or fire when the unit starts
to work. Use only rated power voltage.
Don’t put fingers or objects into vents of
fresh air or exhaust air supply. Injury may
be caused by the rotation of the impeller.
Don’t install, move or re-install the unit by
yourself. Improper action may cause unit
instability, electric shock or fire.
Don’t change, disassemble or repair the
unit by yourself. Improper action may cause
electric shock or fire.
Running the unit continuously in an abnormal
status may cause failure, electric shock or
fire.
Switch off the power and breaker when you
clean the exchanger.
Don’t site intake supply vent in hot and hu-
mid
conditions , as it may cause failure, current
leakage or fire.
Don’t put any burner directly facing the
fresh air discharge, otherwise it may cause
an insufficient burning.
Isolate power during extended off periods
Isolate power and take care when cleaning
unit. (Risk of electric shock)
Observe guidelines and regulations relating
to incomplete combustion when use is asso-
ciated with fuel burning appliances.
Clean the filter regularly. A blocked filter may
result in poor indoor air quality.
15
Commissioning

The intelligent controller is surface mounted and comes with a LCD display screen.
The standard connection cable is 5 meters, but you can prepare extra cable if necessary.
LCD display screen
Control Panel
16
Intelligent Controller Instruction
Supply air
Supply air temperature
Supply air velocity
Power on
Time display
Week display
Bypass on
Outdoor air
Outdoor air temperature
Outdoor air velocity
Timer period
Return air
Return air temperature

Time decrease
Time increase
Temperature increase Temperature decrease
Leave the operation
Mode switch
Useless
Useless Air velocity setting
Useless
Time setting
Choose a day Weekly timer on Weekly timer off
Data save and function
Operation Instructions
1. ON/OFF: press ON/OFF button once for starting; twice for closing. In ON status, the light of power
indicator is on, and the ventilator begins to run. In OFF status, the light is off and the ventilator stops.
2. Mode switch: press MODE to choose to display the oA/rA/SA/Fr status.
3. Air velocity setting: press FAN button to adjust the air velocity. Users can set the return air velocity
in “rA” status, and set the supply air velocity in “SA” status.
4. Time setting: time records if power off. If user need to reset the time, please press the CLOCK but-
ton, when the colon of the clock stills, press it again, then the hour flashes, users can press button to
adjust the hour; then press the CLOCK button again to adjust the minute in the same way, the interval
is 10 minutes. After setting, please press SET button to save the data or press EXIT to leave the opera-
tion without saving the data. If no operation in 8 seconds, display will disappear and all setting is inva-
lid.
5. Day setting: press DAY button, when the day code flashes, select the day by pressing button and .
After setting, please press SET button to save the data or press EXIT to exit without saving the data.
If no operation in 8 seconds, display will disappear and all setting is invalid.
6. Weekly timer on: press TIMER ON button, all the days display, then press this button to switch the
hour->minute->invalidation of timer. Users can set the hour and minute when flashing. When it shows
“--:--”; it means timer is invalid. Besides, users can press DAY button to switch the day, the day flashed
when chosen. After setting, please press SET button to save the data or press EXIT to leave the opera-
tion without saving the data. In the status of TIMER ON, code “1” “2” stands for the first or second peri-
od of timer. User can choose the period of timer by pressing the button of “MODE”. If no operation in 8
seconds, display will disappear and all setting is invalid.
Display screen Power on/off
Power on indicator
17
Intelligent Controller Instruction

7. Weekly timer off: press TIMER OFF button, all the days display, then press this button to switch the
hour->minute->invalidation of timer. Users can set the hour and minute when flashing. When it shows
“--:--”; it means timer is invalid. Besides, users can press DAY button to switch the day, the day flashed
when chosen.
After setting, please press SET button to save the data or press EXIT to leave the operation without
saving the data. In the status of TIMER OFF, code “1” “2” stands for the first or second period of timer.
User can choose the period of timer by pressing the button of “MODE”. If no operation in 8 seconds,
display will disappear and all setting is invalid.
8. Check weekly timer: press DAY button, and press button ℃ and ℃ to choose the day, then the set
timer on and timer off will display. Users can press TIMER ON or TIMER OFF button to check the exact
time.
9. The running of weekly timer: the control system will record the current time, the ventilator starts to
run automatically when the timer is on, if the unit is on already, it maintains running. On the other
hand, it stops when the timer is off, if it is off already, it remains stop status. The timer on and off can
be used independently or simultaneously. When the timer is ON/OFF, users can still change the ON/OFF
status of the unit.
10. Parameter List of Controller are kept after restarting from power-off.
11. temperature setting, after connecting the electrical heater to the PCB (LD3 and LD4), then can set
the temperature by temperature increase and decrease buttons, when SA temperature lower than set-
ting temperature then electrical heater on
1) 0℃＜setting temperature - SA temperature＜5 ℃，1st stage heater on, 2nd stage heater off
2) Setting temperature - SA temperature ＞5℃，1st and 2nd stage heater on
No. Contents Range Default Record PositionUnit
00 Power to auto restart 0-11Main control
01 Electrical heater available 0-10Main control
02 Bypass opening temperature X 5-30 19 Main control
℃
03 Bypass opening temperature
range Y
2-15 3Main control
℃
04 Defrosting interval 15-99 30 Main controlMinute
05 Defrosting entering tempera-
ture
-9-5- 1 Main control
℃
06 Defrosting duration time 2-20 10 Main controlMinute
07 CO2 sensor function value 28-C8
(392-1960PPM)
66
(1000PPM)
Main controlPPM
08 ModBus address 1-16 1Main control
21 ERV models match/selection 0-70Main control
23 Fan speed control 0: 2 speeds
1: 3 speeds
2: 10 speeds (DC)
1
24 Multifunction setting 0: Reserved
1: Sweep filter alarm
2: sweep weekly timer
0
25 Filter alarm setting 0: 45 days
1: 60 days
2: 90 days
3: 180 days
0Main control
18
Intelligent Controller Instruction

12. Instruction of Parameter Settings
1) The control panel is in parameter setting mode via pressing the MODE button more than 6 seconds.
2) In the parameter setting mode, the valid parameter number (00/01/02/03/04/05/06/07/08/21/23/
23/24/25) is shown in the middle of the screen, press button SET to switch the parameter number.
Then press MODE to enter the parameter setting, the default value at the right corner flashes, press the
up-down button to adjust the data. After setting, press SET button to save all the data. After 10 se-
conds, the control panel begins to record the parameters. The setting is proved to be successful if the
parameters
13. Bypass opening parameter setting
1) The bypass is opened on the condition that the outdoor temperature is equal or higher than X and
less than X+Y.
2) The bypass is closed on other conditions.
14. EA fan defrosting mode
When EA side of heat exchanger temperature lower than –1℃(defrosting entering temperature, adjusta-
ble) and last for 1 minute, and the interval of defrosting is longer than 30 minutes (adjustable), the ex-
haust fan will run at high speed automatically for defrosting, and supply fan will stop, until EA side tem-
perature higher than defrosting entering temperature +15℃ for 1 minute, or the defrosting time is long-
er than 10 minutes (adjustable)
15. Filter Alarm, to set the filter alarm under parameter 25, the symbol flash as the filter alarm to
remind customer to clean the filters, to sweep filter alarm by setting parameter 24 value 1.
16. Error code, press set button for short to check the Error code, please refer to below error code table
Code Error
E1 Fresh air temperature sensor error
E2 EEPROM error
E3 Return air temperature sensor error
E4 Exhaust air temperature sensor er-
ror (defrosting temperature error)
E5 Communication error
E6 Supply air temperature sensor error
19
Intelligent Controller Instruction

Introduction of dial switch
Introduction of dial switch
Dial switch
1. SW4-1: OFF-Traditional EA fan defrost ON-OA side electrical heater defrost
2. SW4-2: OFF-Auto by-pass and manual bypass via voltage free connector (free cooling)
3. SW4-3: OFF-CO2 sensor ON-Humidity and temperature sensor
4. SW4-4: Reserve
Attention: Please cut off the power before dialing.
1. SW4-1 is switching the defrost mode. Default is “off”, it means traditional defrost by EA fan. When
turn to “on”, the defrost mode is changed to be OA side heater defrost (required to connect the heater
to the OA duct, only suggested in winter under –15℃), at this time the parameter 01 would be turned
to 0 automatically and the supply air side electrical heater is not able to use.
Under electrical heater defrost mode, controller can automatic drive the electric heater on/off to heat
the fresh air in order to prevent frosting at the EA side of heat exchanger.
1) If the outdoor fresh air temperature < -15⁰C, the OA heater turns on for 50 minutes, then the venti-
lator switches off for 10 minutes and restarts.
2) If the OA heater switches on and the exhaust air temperature still <-1⁰C, then the ventilator will
stops for 50 minutes.
3) If the exhaust air temperature <-1⁰C and the outdoor air temperature >-15⁰C, the OA heater switch-
es on for 10 minutes for defrosting.
4) If the OA heater is on and temperature of outdoor air is >+25⁰C, then OA heater will stop for 5
minutes, If the outdoor air temperature is detected over 25℃ by sensor over 3times, electrical heater
stops.
2. SW4-2 is the by-pass mode. Default is “off”, it means that by-pass will open automatically based on
the outdoor temperature. After connecting the bypass free voltage connector (refer to the wiring dia-
gram), then bypass damper opens manually and fans run at high speed.
3. SW4-3 is switching the forced ventilation mode. Default is “off”, it means that ventilator is controlled
by CO2 sensor. When turn to “on”, the ventilator is controlled by CO2 and humidity sensor. If SW4-3
turn to “ON” but without connecting humidity sensor, then E3 error appears.
4. SW4-4 is reserved.
External ON/OFF switch control logic
External switch can receive voltage free signal to control the ventilator on or off.
-Ventilator off, when ventilator have external on signal, ventilator run at high speed, when ventilator
have external off signal, ventilator return back to off.
- Ventilator on, when ventilator have external on signal, ventilator run at high speed, when ventilator
have external off signal, ventilator return back to previous fan speed
20