VENCO VHR Series Manual

INSTALLATION –OPERATION &
MAINTENANCE INSTRUCTION
HEAT RECOVERY UNITS VHR AND VHR EC MODELS
VENCO Havalandırma ve Makina San.ve Tic. A.Ş.
2004. Cad. No:5 45400 OSB Turgutlu –MANISA / TURKİYE
Tel: [phone] Fax: [phone]
www.venco.com.tr [e-mail]
2019.10

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Index
1. INTRODUCTION..................................................................................................................................... 4
2. HEAT RECOVERY UNITS and VHR MODELS....................................................................................... 4
Figure 2.1. VENCO Heat Recovery Units.................................................................................................... 4
Figure 2.2. Heat Recovery Unit Schema..................................................................................................... 5
Figure 2.3. Heat Recovery Unit Schema (Plug)........................................................................................... 5
3. TECHNICAL SPECIFICATION for HEAT RECOVERY UNITS................................................................ 6
Table 3.1.1 Technical Specifications for VHR Models................................................................................. 6
Table 3.1.2 Technical Specifications for VHR EC Models........................................................................... 7
Table 3.2. Dimensions for VHR and VHR EC Models................................................................................. 8
4. WORKING CONDITIONS ..................................................................................................................... 10
5. TRANSPORTATION –STORAGE –INSTALLATION........................................................................... 10
Figure 5.1. Lifting Schema........................................................................................................................ 10
Figure 5.2. Installation Schema................................................................................................................. 11
Figure 5.3. Connection Schema (Top View).............................................................................................. 11
Figure 5.4 Connection Schema................................................................................................................. 12
6. CONNECTIONS.................................................................................................................................... 12
6.1. DUCT CONNECTIONS ..................................................................................................................... 12
Figure 6.1.1. Duct Connections Schema (Changing the direction of air flow)............................................ 12
6.2. DRAIN CONNECTIONS.................................................................................................................... 13
6.3. ELECTRICAL CONNECTIONS.......................................................................................................... 13
7. SAFETY REQUIREMENTS................................................................................................................... 13
8. SAFETY LABELS.................................................................................................................................. 14
9. CONTROLS BEFORE START-UP........................................................................................................ 15
10. TRAINING of TECHNICIANS............................................................................................................. 16
11. RECOMMENDATIONS FOR SAFETY............................................................................................... 16
12. START-UP......................................................................................................................................... 16
13. MAINTENANCE................................................................................................................................. 16
14. CONTROL FUNCTIONS.................................................................................................................... 17
14.1. Standard Electronic Controller (SEC)............................................................................................. 17
Figure 14.1.1. Standard Electronic Controller (SEC)................................................................................. 17
Table 14.1.1. Electronic Controller Buttons............................................................................................... 18
14.2. Functional Electronic Controller (FEC) ........................................................................................... 19

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Image 14.2.1. Electronic Controller Buttons.............................................................................................. 19
15. TROUBLESHOOTING....................................................................................................................... 21
Table15.1. Troubleshooting Table............................................................................................................. 21
16. SPARE PART LİST............................................................................................................................ 21
Figure 16.1. Heat Recovery Spare Parts................................................................................................... 22
17. APPENDIX ........................................................................................................................................ 23
17.1. APPENDIX-1 Standard Controller (SEC) Electrical Wiring Diagram............................................... 23
17.2. APPENDIX-2 Functional Controller (FEC) AC FAN Electrical Wiring Diagram ............................... 24
17.3. APPENDIX-3 Functional Controller (FEC) EC FAN Electrical Wiring Diagram ............................... 25
17.4. APPENDIX-4 Functional Controller (FX 3.1 PRO) AC FAN Electrical Wiring Diagram ................... 26
17.5. APPENDIX-3 Functional Controller (FX 3.1 PRO) EC FAN Electrical Wiring Diagram ................... 27
17.6. APPENDIX-3 230V / 50Hz / 1 Phase Electrical Heater Wiring Diagram ........................................ 28
17.7. APPENDIX-4 400V / 50Hz / 3 Phase Electrical Heater Wiring Diagram ........................................ 28
17.8. APPENDIX-5 Electrical Cable And Fuse Selection Tables............................................................. 29
Table 17.8.1. Heat Recovery Unit Electrical Power Supply and Circuit Breaker Selection Table............... 29
Table 17.8.2. Heat Recovery Unit Electrical Power Supply Cable Cross Section Table ............................ 30
Table 17.8.3. Duct Type Electrical Heater Power Supply and Circuit Breaker Selection Table.................. 31
Table 17.8.4. Duct Type Electrical Heater Power Supply Cable Cross Section Table............................... 31

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1. INTRODUCTION
Installation, Operation and Maintenance Instruction concerns heat recovery units manufactured by VENCO. It
consists of basic information and recommendation concerning the design, technical specifications, installation,
operation and maintenance of the heat recovery unit which shall be obeyed to ensure proper fail-safe operation
of the unit. The key to proper and safe operating of the unit, read thoroughly this instruction, use the unit
according to guidelines given in it and follow all safety requirements. The instruction should always be in
proximity of the unit and within easy reach of the service technician.
2. HEAT RECOVERY UNITS and VHR MODELS
VENCO Standard Heat Recovery Devices are classified in 10 different models; VHR 04 - 07 - 09 - 11 - 16 -
20 - 23 - 29 - 36 - 51. High efficiency EC fan devices are classified in 7 different models; VHR 04 EC - 09 EC
- 11 EC - 16 EC - 29 EC - 36 EC - 51 EC. In all models, the body is made of galvanized sheet and the cabin
is fully insulated for sound and heat insulation. The surface of the unit is polished with electrostatic RAL
colors. All models have two access doors for service to clean and exhaust air filters.
Figure 2.1. VENCO Heat Recovery Units
READ THE INSTRUCTION BEFORE START-UP THE UNIT and KEEP IT IN
PROXIMITY OF THE UNIT and WITHIN EASY REACH OF SERVICE TECHNICIAN.
THE APPLIER WILL BE RESPONSIBLE FOR DEFECTS OCCURED DUE TO
OPERATING THE UNIT BY NOT AUTHORIZED PERSONEL or USING THE SPARE
PARTS WHICH ARE NOT ORIGINAL.
THE UNIT MUST BE OPERATED APPROPRIATE APPLICATIONS FOR PURPOSES
DESIGN and TECHNICAL SPECIFICATIONS
THE UNIT MUST NOT USED IN THE ENVIROMENTS WHERE CORROSION and
EXPLOSIVE GASSES EXIST

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Heat Recovery units as standard consist of five different parts as described; Exhaust Fan, Supply Fan, Fresh
Air Filter, Exhaust Air Filter, Plate Type Heat Recovery Exchanger.
Figure 2.2. Heat Recovery Unit Schema
Figure 2.3. Heat Recovery Unit Schema (Plug)
Fresh Air Fan, Direct
Driven
Drain Pan
Exhaust Air Fan, Direct
Driven
Heat Recovery Plate
Exchanger
Filter
Filter
Fresh Air Fan,
Direct Driven
Drain Pan
Exhaust Air Fan,
Direct Driven
Heat Recovery Plate
Exchanger
Filter
Filter

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3. TECHNICAL SPECIFICATION for HEAT RECOVERY UNITS
Technical specifications, which are valid for the heat recovery units as standard manufactured by VENCO, are
given in the table below.
Table 3.1.1 Technical Specifications for VHR Models
MODEL
VHR
04
VHR
07
VHR
09
VHR
11
VHR
16
VHR
20
VHR
23
VHR
29
VHR
36
VHR
51
Air Flow 0 Pa*
m³/h
493
770
925
1238
1620
2025
2310
2852
3678
4857
Air Flow 150 Pa*
m³/h
299
595
790
1045
1320
1790
2045
2370
3137
3750
Efficiency
%
Efficiency up to 70%, depending on working conditions
ELECTRICAL
Voltage
230Volt / 50Hz
Power
Watt
104
204
310
420
450
1030
1030
1100
1.100
1100
SFP**
1,15
1,09
1,18
1,27
1,23
2,00
1,76
1,67
1,26
1,41
Air Filter
Synthetic Filter –For Exhaust and Fresh Air
OOPTIONAL
Electrical Heater
kW
1
230 V
1~
2
230 V
1~
3
230 V
1~
3
230 V
1~
4
400V
3~
5
400 V
3~
6
400 V
3~
7
400 V
3~
10
400 V
3~
12
400 V
3~
*External static pressure
**According to EN 13779

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Table 3.1.2 Technical Specifications for VHR EC Models
MODEL
VHR
04 EC
VHR
09 EC
VHR
11 EC
VHR
16 EC
VHR
29 EC
VHR
36 EC
VHR
51 EC
Air Flow 0 Pa*
m³/h
547
1252
1468
2261
2858
3810
4993
Air Flow 150 Pa*
m³/h
428
1091
1058
2112
2657
3534
4742
Efficiency
%
Efficiency up to 70%, depending on working conditions
ELECTRICAL
Voltage
230Volt / 50Hz
Power
Watt
110
340
340
1050
1220
1560
2600
SFP**
1,004
1,102
1,196
1,684
1,508
1,412
1,752
Air Filter
Synthetic Filter –For Exhaust and Fresh Air
OOPTIONAL
Electrical Heater
kW
1
230 V
1~
3
230 V
1~
3
230 V
1~
4
400V
3~
7
400 V
3~
10
400 V
3~
12
400 V
3~
*External static pressure
**According to EN 13779
VHR Heat Recovery Units are controlled with Standard Electronic Controller (SEC), supplied as standard with
the unit. The supply air fan and return air fan are driven as 5 speeds with SEC. Also the electrical heater
(optional) can be controlled by SEC manually or automatically depending on the room set temperature, has a
protection system (optional) against the frost formation at the temperatures below -5°C, and Pressure Sensor
(optional) for clogged filter.
Functional Electronic Controller (FEC) could be supplied optionally. Moreover to SEC, CO2sensor or air quality
sensor could be optionally connected. The fan speed automatically changes by regarding to the sensor value.
All controllers have a digital input for Building Management System or VRF (VRV) System and also have a
digital output for the unit status information.

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Table 3.2. Dimensions for VHR and VHR EC Models

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MODEL
VHR 04
VHR 07
VHR 09
VHR 11
VHR 16
VHR 20
VHR 23
VHR 29
VHR 36
VHR 51
Length [mm]
L
800
900
900
940
1115
1125
1125
1.400
1.450
1.650
Width [mm]
W
740
860
860
1020
1030
900
900
980
1.100
1160
Height [mm]
H
295
335
335
450
430
425
425
420
595
690
Duct Connection
[mm]
Ød
Ø160
Ø200
Ø200
Ø200
Ø300
Ø300
Ø300
Ø355
Ø400
Ø450
Weight [kg]
28
40
40
63
65
76
76
104
145
160
Service
Clearance [mm]
Ls
400
450
450
500
550
550
550
450
450
500
MODEL
VHR 04
EC
VHR 09
EC
VHR 11
EC
VHR 16
EC
VHR 29
EC
VHR 36
EC
VHR 51
EC
Length [mm]
L
800
900
940
1115
1.405
1450
1655
Width [mm]
W
735
860
1020
1030
1115
1100
1265
Height [mm]
H
290
330
445
430
430
595
700
Duct Connection
[mm]
Ød
Ø160
Ø200
Ø200
Ø300
Ø355
Ø400
Ø450
Weight [kg]
28
40
63
65
90
140
155
Service
Clearance [mm]
Ls
400
450
500
550
550
600
600

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4. WORKING CONDITIONS
The heat recovery units effectively work at the temperatures between -5°C and +40°C at the relative humidity
80%. The unit is not applicable for the corrosive conditions. For different working conditions, please contact
with VENCO.
If there is no frost protection on the unit and the outside temperature is less than -5°C, the unit must be stopped
and you should contact with VENCO. The condense water can be frozen at the temperature less than -5°C
and it can damage the exchanger.
With frost protection system, units can work at the temperature between -30°C and +40°C at the relative
humidity 80%. With the frost protection case; if the exchanger thermostat senses below -5°C, exhaust fan
jumps to highest speed, and fresh air fan drops to lowest speed. And there is a warning message “Frost
Protection” popups on the controller screen. The unit functions and the controller screen rolls back to normal
situation, when the exchanger thermostat senses above -5°C.
5. TRANSPORTATION –STORAGE –INSTALLATION
All heat recovery units by manufactured VENCO are controlled and tested according to the standards before
the transportation.
During transportation, lifting and landing, heat recovery units are damaged especially due to wrong methods
usage. Appropriate lifting methods should be used in order to minimize any possible damage. Transpallet or
forklift can be used for lifting or transporting small units. Lifting and transportation should be done with trained
and experienced personnel and security precautions should be taken to prevent the unit to fall over or slide.
During lifting and transportation of the unit, nobody should stay under the unit or in the front of the unit (Figure
5.1.).
Figure 5.1. Lifting Schema
During Storage; heat recovery units have to be kept in a closed area where the heat should be between –20
ºC and + 40 ºC and relative humidity should not exceed 80%. Also the unit should be kept away from dust,
gas, corrosive streams and effects causing corrosion.
During Installation; EN 60204-1 rules should be implemented during the final assembly. Before the installing
of heat recovery units, customers should control whether weight and dimensions of the stations are suitable
for the places from where stations will pass through and assembly will be carried out.There should be sufficient
amount of place around the unit to be able to give service and for piping connections. Heat recovery units
should be assembled onto a hard and flat base.
Damages due to wrong transportation-storage-installation are not covered under warranty.