VENCO VHR ER 01 Manual

INSTALLATION –OPERATION &
MAINTENANCE INSTRUCTION
ENERGY RECOVERY UNITS VHR ER 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. ENERGY RECOVERY UNITS and VHR ER MODELS............................................................................ 4
Figure 2.1. VENCO Energy Recovery Units................................................................................................ 5
Figure 2.2. Energy Recovery Unit Schema................................................................................................. 5
Figure 2.3. Heat Recovery Unit Schema (Plug)........................................................................................... 5
3. TECHNICAL SPECIFICATION for ENERGY RECOVERY UNITS........................................................... 5
Table 3.1. Technical Specifications for VHR ER Models............................................................................. 5
Table 3.2. Dimensions for VHR ER Models................................................................................................. 6
4. WORKING CONDITIONS ....................................................................................................................... 7
5. TRANSPORTATION –STORAGE –INSTALLATION............................................................................. 7
Figure 5.1. Lifting Schema.......................................................................................................................... 7
Figure 5.2. Installation Schema................................................................................................................... 7
Figure 5.3. Connection Schema (Top View)................................................................................................ 7
Figure 5.4 Connection Schema................................................................................................................... 7
6. CONNECTIONS...................................................................................................................................... 8
6.1. DUCT CONNECTIONS ....................................................................................................................... 8
Figure 6.1.1. Duct Connections Schema (Changing the direction of air flow).............................................. 8
6.2. DRAIN CONNECTIONS...................................................................................................................... 8
6.3. ELECTRICAL CONNECTIONS............................................................................................................ 8
7. SAFETY REQUIREMENTS..................................................................................................................... 9
8. SAFETY LABELS.................................................................................................................................... 9
9. CONTROLS BEFORE START-UP........................................................................................................ 10
10. TRAINING of TECHNICIANS............................................................................................................. 11
11. RECOMMENDATIONS FOR SAFETY............................................................................................... 11
12. START-UP......................................................................................................................................... 11
13. MAINTENANCE................................................................................................................................. 12
14. CONTROL FUNCTIONS.................................................................................................................... 13
14.1. Standard Electronic Controller (SEC)............................................................................................. 13
Figure 14.1.1. Standard Electronic Controller (SEC)................................................................................. 13
Table 14.1.1. Electronic Controller Buttons............................................................................................... 13
14.2. Functional Electronic Controller (FEC) ........................................................................................... 15
Image 14.2.1. Functional Electronic Controller.......................................................................................... 15

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Table 14.2.2. Keypad..............................................................................Hata! Yer işareti tanımlanmamış.
15. TROUBLESHOOTING....................................................................................................................... 17
Table15.1. Troubleshooting Table............................................................................................................. 17
16. SPARE PART LIST............................................................................................................................ 18
Figure 16.1. Heat Recovery Spare Parts................................................................................................... 18
17. APPENDIX ........................................................................................................................................ 19
17.1. APPENDIX-1 Standard Controller (SEC) Electrical Wiring Diagram............................................... 19
17.2. APPENDIX-2 Functional Controller (FEC) Electrical Wiring Diagram ............................................. 20
17.3. APPENDIX-3 Energy Recovery Unit Electrical Power Supply and Circuit Breaker Selection Table...

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1. INTRODUCTION
Installation, Operation and Maintenance Instruction concerns energy recovery units manufactured by VENCO.
It consists of basic information and recommendation concerning the design, technical specifications,
installation, operation and maintenance of the energy 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. ENERGY RECOVERY UNITS and VHR ER MODELS
VENCO Energy Recovery Units are classified 9 different models; VHR ER 01 –04 –06 –08 –15 –28 –35 –
40 –51 –54 (Figure 2.1). In all models, the housing is made from galvanized sheet metal and the cabinet is
fully insulated for sound and heat isolation. The surface of the unit is lacquered with the electrostatic RAL
colors. All models contain two access doors for the service to fresh and exhaust air filters.
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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Figure 2.1. VENCO Energy Recovery Units
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. VENCO Energy Recovery Units Schema
3. TECHNICAL SPECIFICATION for ENERGY 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. Technical Specifications for VHR ER Models
MODEL
VHR
ER 01
VHR
ER 04
VHR
ER 06
VHR
ER 08
VHR
ER 15
VHR
ER 28
VHR
ER 35
VHR
ER 40
VHR
ER 51
VHR
ER 54
Air Flow 0 Pa*
m³/h
143
356
629
808
1544
2789
3583
3980
5200
5387
Air Flow 150 Pa*
m³/h
-
204
413
611
1235
2248
2968
3400
3863
4325
Efficiency
%
Efficiency up to 70%, depending on working conditions
ELECTRICAL
Voltage
230Volt / 50Hz
Power
Watt
52
104
204
204
450
1100
1100
1100
1100
1100
SFP**
-
1,7
1,58
1,06
1,31
1,76
1,33
1,16
1,37
1,23
Air Filter
G3 Synthetic Filter –For Exhaust and Fresh Air
*External static pressure
**According to EN 13779

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VHR Energy 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.
Table 3.2. Dimensions for VHR ER Models
MODEL
VHR
ER 01
VHR
ER 04
VHR
ER 06
VHR
ER 08
VHR
ER 15
VHR
ER 28
VHR
ER 35
VHR
ER 40
VHR
ER 51
VHR
ER 54
Length [mm]
820
1147
1147
1070
1215
1215
1215
1295
1430
2110
1.650
Width [mm]
550
716
716
710
710
810
910
910
1010
1245
1160
Height [mm]
338
338
438
660
705
760
915
1040
1090
1360
690
Duct Connection
[mm]
a
Ø160
Ø200
400
400
400
500
500
600
600
600
b
200
200
250
300
300
400
400
Weight [kg]
55
65
73
115
140
160
180
230
255
280
Service
Clearance [mm]
550
400
400
400
750
750
850
950
1100
1100
1200

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4. WORKING CONDITIONS
The energy recovery units effectively work at the temperatures between -20°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 -20°C, the unit must be
stopped and you should contact with VENCO. The condense water can be frozen at the temperature less than
-20°C and it can damage the exchanger.
5. TRANSPORTATION –STORAGE –INSTALLATION
All energy recoveryunits bymanufactured 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; energy recovery units have to be kept in a closed area where the energy 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 energy 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. Energy recovery units
should be assembled onto a hard and flat base.
Damages due to wrong transportation-storage-installation are not covered under warranty.

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6. CONNECTIONS
6.1. DUCT CONNECTIONS
Return air, fresh air, exhaust air and supply air ducts should be fixed (connected) to the unit with flexible
connection. Required leak-proofing should be obtained in order to ensure desirable air flow. Having improper
(bad) unit –duct connections and wrong dimension, shape and duct fragments inside of the connection may
cause a turbinated air flow.
When air flow direction is changed at fan blowing outlet, excessive losses may occur. If this is compulsory,
connections should be done as Figure 6.1.1. The length of duct, before the elbow or electrical heater, should
be double of the outlet-diameter.
Figure 6.1.1. Duct Connections Schema (Changing the direction of air flow)
6.2. DRAIN CONNECTIONS
The diameter of drain pipe should be equal the diameter of drain pipe on the unit. Drainage pipe and drain pan
connections should be made by ripple and flange to be able to dismantle pipe connections easily in order to
clean up the residue occurred on drain pan and pipes.
The pipe coming out of the drain pan should be connected to a U or P shaped flusher pipe and should be filled
with water in order to not to cause air suction as described below.(Figure 6.2.2.)
Figure 6.2.2. P-Shaped Flusher Application
6.3. ELECTRICAL CONNECTIONS
ALL ELECTRICAL CONNECTIONS SHALL BE DONE ACCORDING TO EN 60204-1
BY TRAINNED AND AUTHORIZED PERSONEL

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All electricity connections should be designed and prepared according to EN 60204 –1 Standards. The
electrical materials, cables and all relevant control and remote control equipment should be chosen and
designed suitable to unit peculiarities and requirements. Electrical wiring diagram is given in Figure 19.1 –
Appendix 1.
7. SAFETY REQUIREMENTS
VENCO energy recovery units are produced according to EN 60204-1 Standards and MD 98/37 EC numbered
European Union Directives and carry the CE signs on themselves. However, the unit can be dangerous if the
unit is not used or the service is given by trained and experienced technicians, and indicated security
precautions are not followed. For this reason the necessity was felt to explain security rules of heat recovery
units and explain possible dangers and precautions.
Possible dangers related to energy recovery units are as follow;
Dangers directed to operator security
Dangers directed to unit damage
Dangers directed to unit operation productivity.
Never expose the unit to moisture, strokes and external effects.
The unit should not be used in the environment where corrosion and explosive gasses exist.
The unit should be maintained by trained technicians.
Do not repair or adjust, when the unit is running.
Turn the electrical switch off and wait for the motor blades stop, before open the unit.
Never expose fans, cables and connections to the water.
If 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, it can be damaged to the exchanger.
Do not operate the unit, when the access doors open and the duct connections are not completed.
8. SAFETY LABELS
Necessary warning labels are placed onto unit for the users or service personnel. When the unit is put into the
operation, following stickers have to be controlled whether they are existing or not.
ELECTRICAL CONNECTIONS ARE READY FOR PLUG-IN CONNECTION. DO NOT
CUT CABLE AND PREPARE PROPER EQUIPMENT TO CONNECT.

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Figure 8.1. Manuel label
Figure 8.2. Electrical warning
label
Figure 8.3. Temperature
warning label
Figure 8.4. Repair warning label
Figure 8.5. Wiring diagram label
Figure 8.6.Ground label
Figure 8.7. Fan label
Figure 8.8.Electrical warning
label
Figure 8.9. Access door label
Figure 8.10. Filter access door
label
Figure 8.11. Drain label
Figure 8.12. Fresh air label
Figure 8.13. Exhaust air label
Figure 8.14. Air flow direction
label
9. CONTROLS BEFORE START-UP
Please make sure that all electricity cables are made according to (EN 60204 -1) standards and security
and protection units belong to all elements.
Please make sure that all parts of the unit are clean. There can be duct insulation residuals, bands etc.