Ecovent NRGP 0, 1 and 2

HIGH EFFICIENCY
HEAT RECOVERY
low energy fans
fitted controls with
touch screen remote
wide range of models
for ceiling void, plantroom
and outdoor location
L2 compliant classroom unit
All units suitable for demand
ventilation using a VES air
quality sensor
VES AIR HANDLING UNITS
part of a complete range of innovative
flexible products from the HVAC experts
Why choose VES
VES have been supplying products for the HVAC industry for over
40 years, and have the in-depth knowledge and resources to
provide solutions to all ventilation related requirements. We are a
substantial British manufacturing company with over 220
employees, several factories plus a regional base in the north of
England, and sales and service engineers located throughout the UK.
Complete range of products
The product range encompasses all types of ventilation products,
including those required for commercial, industrial, public and domestic
buildings. The emphasis is on low energy products and sophisticated
controls to meet the requirements of the Building Regulations.
Ecovent has been the acknowledged market leader
in heat recovery air handling units for over 10 years.
Ecovent NRG is a further development, offering
more choice and considerable advances in
energy saving.
The expanded range includes three low profile ECO NRG P
models with improved specific fan power, higher outputs,
bypass damper to the plate heat exchanger and double
skinned case.
The size 2 unit offers a duty of 0.35m3/sec against 150Pa
external resistance, with an SFP of less than 2.2 watts/litre/sec
- ideal for classrooms.
The range extends from a small bathroom extract fan up to a mighty
central station air handling unit. There are specialist heat recovery
units, high temperature fans for kitchen hood extract; duct, wall,
ceiling and roof units; low noise products and silencers; fitted controls.
High quality, flexible solutions
VES operate a quality assurance system to ISO 9001, monitored by
the BSI. The air movement products are tested in house to BS 848 Part 1,
and submitted for external testing and approval when necessary.
VES specialise in bespoke designs for ventilation units,
and whatever the issue, be it space, noise, temperature etc, can
provide a design solution to meet the requirements of the project.
Superior customer service
From the moment we receive your enquiry to delivery and beyond,
we have the people in place to give excellent customer service.
The VES after sales service covers the whole of the UK
and is among the best in the industry.
Experience and expertise
VES employ a range of experts in disciplines including air
movement, noise control, air conditioning, controls,
electrics and product refurbishment, and we have
key staff who have worked at VES for many years.
Manufactured in the UK
VES has over 12000m2 of manufacturing and stores space, and has
state of the art sheet metalworking equipment, plus a large powder
coating plant. VES also has a substantial controls department,
and makes components such as dampers and electric heaters
in-house. This not only provides employment for local people,
but also many suppliers around the UK.
2
Contents:
Options and features
Controls
Size 0, 1 & 2 details
Size 3, 4, 5 & 6 details
Size 7, 8 & 9 details
Specific fan power information
Product dimensions
Silencers
Hot water heater batteries
Twin extract fan option
Air volume and pressure
commissioning
3-4
4-5
6-7
8-9
10-11
12-13
14-19
20-21
22
23
24
HEAT RECOVERY AIR HANDLING UNITS
One range ... many options
ECO NRG P units Size 0, 1 and 2 key features:
• One size case with three fan options
• Air volumes up to 0.40m3/sec
• Low energy fans, with low SFP
• Double skinned case
• Ideal for ceiling void or roof space
• Top or bottom access
• Weatherproof construction available
• Prewired fan speed controller and isolator
• Bypass damper to heat exchanger
• Optional fitted controls package
• Built-in LPHW coil or EHB
• Circular spigot connections with duct seal
Size 3, 4, 5 & 6 key features:
• Air volume up to 1.0m3/sec
• 25mm double skinned cases, plantroom or weatherproof, flat or stacked
• Low energy fans with low SFP
• Face and bypass damper to heat exchanger
• Built-in LPHW coil or EHB
• Optional fitted controls prewired to all components
• Unit access is at the top or bottom on flat units and on the side of stacked
units
• Units supplied in two sections
Size 7, 8 & 9 key features:
• Air volume up to 2.5m3/sec
• 50mm cases constructed to EN1886 standard, including low air
leakage to rating L3
• Cases available - plantroom or weatherproof, flat or stacked
• Units supplied in two sections
• Low energy plug fans with prewired inverter
• Face and bypass damper to heat exchanger
• Built-in LPHW coil or EHB
• Optional fitted controls, prewired to all components
• The direct drive plug fans ensure quick and accurate site
commissioning, complete with fan speed control, low energy use
and low SFP, plus low maintenance
3
HEAT RECOVERY AIR HANDLING UNITS
Better by design
- All Ecovent NRG units contain a cross flow plate heat exchanger which has no
cross contamination of moisture, smells or fumes.
- All units have a filter to both inlets and a drain pan to the exhaust side of the heat
exchanger.
- Quick change plug connectors fitted to all fans and motors
- All units have been tested to BS 848 Part 1.
Design options
The Ecovent NRG range can be readily adapted to suit your particular requirements. This will not
take a lot of time at quoting, design or production stage; VES are experts in special air handling units.
f For example, the units size 3 - 6 can be upgraded to EN 1886
construction. This will add 50mm to the width and height, and
100mm to the length.
f Sizes 7, 8 and 9 can be scaled down to standard 25mm double
skinned case construction if preferred.
f Twin extract fans with autochangeover system. The fans will be
mounted in parallel to avoid loss of duty.
f Heavy weight case panel infill to further reduce noise breakout.
f Fitted cooling or heat pump coils. It may be necessary to make
the unit wider or go to the next size due to the face velocity and
air pressure drop through the coil.
f Fitted silencers available for all models. These can be powder
coated to match a weatherproof case and supplied with support
feet and inlet or outlet cowls if required.
f Increased corrosion protection for coastal, swimming pool or
food processing applications. Internal powder coat paint finish
or stainless steel panelling available.
f Special colour - advise BS or RAL number.
f Ecobox plate heat exchangers available in separate housings.
Electric Heater
Batteries
Calculate the heat output required using this formula:
Heat Output
kW
=
=
Air Volume x Constant x Temperature Rise
m /sec
3
x
1.21
x
▲T°C
Each EHB has a fitted manual reset high temperature cut-out set at 130°C. In addition, when fitted
controls are supplied, VES fit a further high temperature cut-out rated at 70°C within the Ecovent
NRG unit, together with an airflow pressure switch piped to each side of the supply fan. These are
all wired into the controls system, for complete safety in the event of reduced airflow or airflow
failure. The heater will be shut down before any damage occurs.
Hot Water
Heaters
Ecovent NRG
Controls
Generously sized to provide for all conditions, the coils have two rows of copper tubes and
aluminium fins with a minimum spacing of 7 fins per inch. An air vent and drain is provided on
the headers, which terminate in a BSP connection. See page 22 for a table of coil outputs.
Control panels can be fitted and prewired or supplied for remote location.
The control panels have been designed to maximise heat recovery, and be easy to use
once installed.
Built-in controls mean the unit is fully prewired and tested before despatch.
There will be far less site wiring required. Units in two or more sections will have terminal boxes
which require some final site connection by others, using quick change prewired plug connectors.
The touch screen remote controller allows adjustment and monitoring of temperature and time
clock. This gives the building occupants adequate control over their environment. Many other
functions are available, these can only be accessed by pin number at the remote. The controller
has a low voltage screened cable connection to the panel.
4
Ecovent NRG
Controls
Continued
Control Functions
f Intelligent start up – the unit monitors the
start up time over a period of time and
automatically adjusts start time each day to
meet the room temperature requirements.
f The air temperature is constantly
monitored using sensors which check the
fresh air intake, supply air duct and extract
or room temperature. From this the face
and bypass damper on the plate heat
exchanger is automatically adjusted for
heat recovery, free cooling and cooling
recovery.
f Electric heating in up to 9 steps of control.
f Fully modulating hot water heating with frost protection.
f Fan speed controllers can be supplied loose, fitted to unit and prewired into the control
system as required. The control system can switch the unit to low speed ie trickle vent
using the speed controllers if required.
f DX or chilled water cooling control.
f Should a DX heat pump coil be fitted, an additional sensor will be located after the
plate heat exchanger to ensure that an air on temperature of 16°C onto the heat pump
coil is provided in heating mode. In this situation a hot water or electric heater must be
fitted between the plate heat exchanger and the DX coil.
Further Control features
f Service interval reminder.
f On screen alarm advising fault.
f BMS volt free contacts for any number of signals.
f If controls fitted and electric heating used, an airflow pressure switch and two high
temperature safety cutouts will be fitted and prewired.
f Anti-condensation heater fitted in weatherproof control panels.
Demand
ventilation
using an air
quality sensor
The VES AQ Sensor sends a 0-10 volt signal
direct to the fan speed controller to adjust the
airflow to maintain desired air quality. Typically,
as occupancy increases, air quality decreases,
and the fan will speed up to compensate, and
vice versa. This is particularly beneficial with the
full fresh air Ecovent NRG system, especially
when they have inverters fitted.
AQ Sensor Features
f Adjustment of the weighting can be between 100% CO2 and 100% VOC (volatile
organic compounds), and proportions in between, ie 25/75, 50/50 etc. VOC weighting
should be used for environments with odours such as smoking, cooking, toilets, garage
exhaust fumes etc. CO2 weighting should be used where people occupancy varies, ie
shops, offices, sports clubs etc. Default setting 50/50%.
f Normal range of operation for CO2 is 450 - 1250 ppm, the defined range from clean
fresh air to unpleasant air. This band width can be reduced if required for a faster
response.
f The AQ unit sends a 0–10 volt signal direct to the fan speed controller.
f The AQ Sensor is suitable for room location model AQ-R, and duct mounting using
model AQ-D.
f The AQ Sensor has further advanced adjustments available for specialised
environments.
5
HEAT RECOVERY AIR HANDLING UNITS
ECO NRG P
Sizes 0, 1&2
f Compact construction, with 15mm double
skinned case and Class O rated
thermal/acoustic infill.
f Fitted dual fan speed controller as standard
for commissioning, max/min speed, 0-10volt
control, and compatible with the AQ air
quality sensor.
f High spec fans with backward curved single
inlet impellor and external rotor motor.
f High efficiency cross flow heat exchanger
with fitted bypass damper and 230 volt actuator.
f Plantroom / ceiling void unit flat orientation with top or bottom access, and weatherproof
construction with top access and powder coat paint finish in Signal Grey to RAL 7004.
Electrical Details
f
Filter fitted to both supply and extract inlet, pleated, synthetic, grade G4.
f
Circular spigot connections with rubber duct seal.
f
Built in LPHW coil or EHB.
f
Drain pan suitable for use with optional peristaltic pump.
f
Fitted prewired isolator as standard.
f
Units can be hung with drop rods or supplied with optional self levelling feet.
f
Optional fitted and wired control system with touch screen remote.
f
Fans and bypass damper motor fitted with quick change plug connectors for easy
maintenance.
f
Optional powder coat paint finish available to plantroom/ceiling void units.
Unit size
0
Fan power, watts, each fan
Fan FLC, amps
Fan speed RPM
Supply
140
200
400
0.6 amps
0.86
1.70
2530
2420
2370
230 volt 1 phase 50 Hz
230 volt 1 phase 50 Hz
3.0
6.0
9.0
2
4
4
CPC0-1/632/2-1/C/D
CPC0-1/632/4-1/D
CPC0-1/632/4-1/D
CPC0-1/632/W/C/D
CPC0-1/632/W/C/D
CPC0-1/632/W/C/D
No 1 phase EHB steps
Fitted control panel with LPHW
2
230 volt 1 phase 50 Hz
EHB size, kW
Fitted control panel with EHB
1
LPHW coil, designed for LPHW 82/71°C, EAT –5°C, LAT 25°C, coil construction copper tubes, aluminium fins, coil connections 1/2” BSP.
LPHW control valve and actuator can be supplied.
Sound Data
63
Sound Spectrum dB re10-12w PWL
Centre Frequency Hz
125 250 500
1k
2k
4k
8k
Size 0
64
72
66
66
63
59
60
55
35
30
Size 1
62
68
66
68
65
60
61
57
35
30
Size 2
64
70
68
70
67
62
63
59
40
35
Silencer IL, dB
6
8
12
19
28
30
24
21
n/a
n/a
Ecovent NRG P
Sound Power Level PWL, dB, linear, in accordance with ISO13347-1:2004
Silencer model ALS 5/1200/STD/CS designed to meet NR 35/40 within conditioned space.
Control details
Specific Fan power
Unit dimensions
Silencer dimensions
LPHW heater details
6
p4 / 5
p12
p14 /15
p20
p22
Casing Noise Breakout
NR @ 1m
NR @ 3m
Selection
Curves
Sizes 0,
1&2
ECO NRG P 0
Volts
SFP
Watts/litre/sec
ECO NRG P 1
Volts
SFP
Watts/litre/sec
ECO NRG P 2
Volts
SFP
Watts/litre/sec
7
HEAT RECOVERY AIR HANDLING UNITS
Sizes 3,4,
5&6
f 25mm double skinned cases,
available plantroom or
weatherproof, flat or stacked
configuration. All units built
with an aluminium tubular frame,
and galvanised steel sheet panels,
with resin bonded mineral wool
slab infill.
f External units supplied with
sloping roof, channel base, inlet
and exhaust cowls and powder
coat finished in Signal Grey to RAL 7004.
f Low energy backward curved single inlet fans, with low SFP, available with 230volt
single and 400volt three phase motors.
f Cross flow plate heat exchanger with fitted face and bypass damper and 230volt
actuator.
f Optional fitted controls, prewired to all internal components.
f Built in LPHW coil or EHB.
f Fans and bypass damper motor fitted with quick change plug connectors for easy
maintenance.
f Flat units have top or bottom access.
f Stacked units have side access.
Electrical Details
Unit size
230 volt 1 phase motors
Fan power, watts, each fan
Fan FLC, amps
Fan speed RPM
Fan speed regulator (manual)
Fan speed regulator (0-10 volt)
400 volt 3 phase motors
Fan power, watts, each fan
Fan FLC, amps
Fan speed RPM
Max. EHB size, kW*
No of single phase steps
Control Panels
For EHB (1 phase fan)
For EHB (3 phase fan)
For LPHW (1 phase fan)
For LPHW (3 phase fan)
f Units supplied in two sections.
3
4
5
6
490
2.2
1050
T4
MS10
490
2.2
1350
T4
MS10
730
3.3
1230
T4
MS10
1300
5.7
1320
T8
MS10
320
0.51
1050
15.0
6
450
0.86
1330
18.0
6
690
1.3
1210
27.0
9
1150
2.0
1330
27.0
9
CPC3-1/642/6-1/C/D
CPC1-3/642/6-1/C/D
CPC3-1/642/W/C/D
CPC1-3/642/W/C/D
CPC3-1/642/6-1/C/D
CPC1-3/642/6-1/C/D
CPC3-1/642/W/C/D
CPC1-3/642/W/C/D
CPC4-1/842/9-1/D
CPC2-3/842/9-1/D
CPC4-1/642/W/C/D
CPC2-3/642/W/C/D
CPC5-1/842/9-1/D
CPC3-3/842/9-1/D
CPC5-1/642/W/C/D
CPC3-3/642/W/C/D
Notes: *Other sizes of EHB can be supplied with control panel to suit.
Sound Data
63
Sound Spectrum dB re10-12w PWL
Centre Frequency Hz
125 250 500
1k
2k
4k
8k
Size 3
59
69
64
59
54
49
45
39
40
35
Size 4
64
74
69
64
59
54
50
44
45
40
Size 5
75
78
77
71
65
62
60
59
50
45
Size 6
69
79
80
69
67
62
59
57
55
50
Ecovent NRG
Sound Power Level PWL, dB, linear, in accordance with ISO13347-1:2004
Control details
Specific Fan power
Unit dimensions
8
p4 / 5
p12
p16 / 17
Silencer dimensions
LPHW heater details
p21
p22
Casing Noise Breakout
NR @ 1m
NR @ 3m
Selection
Curves
ECO NRG 3 & 4
450
400
4 - 3 ph
4 - 1 ph
350
Resistance - Pa
300
3 - 1 ph
250
3 - 3 ph
200
150
100
50
0
0
0.1
0.2
0.3
Air Volume
0.4
0.5
0.6
0.7
m3/sec
ECO NRG 5 & 6
550
500
450
6 - 3 ph
6 - 1 ph
400
Resistance - Pa
350
300
5 - 3 ph
250
5 - 1 ph
200
150
100
50
0
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Air Volume
0.8
0.9
1.0
1.1
1.2
1.3
m3/sec
9
HEAT RECOVERY AIR HANDLING UNITS
Sizes 7,8&9
Design Details
f 50mm double skinned case certified to EN 1886 standard.
f Direct drive centrifugal plug fans complete with prewired inverter for energy saving,
and rapid site commissioning. The fan is fully vibration isolated from the case
internally with A.V. mounts and flexible connection. All fan motors are for 400 volt
3 phase 50 Hz.
f High efficiency cross flow plate heat exchanger, with condensate drain pan, and fitted
face and bypass damper with 230 volt actuator.
f Optional fitted controls, prewired to all internal components.
f Filter fitted to both supply and extract inlet, pleated, synthetic, grade G4.
f Built in LPHW coil or EHB in up to 9 steps of control.
f Units available plantroom or weatherproof, flat or stacked configuration. Internal units
built using an aluminium tubular frame, and galvanised steel sheet panels with resin
bonded mineral wool slab infill. External units supplied with sloping roof, channel base,
inlet and exhaust cowls and powder coat finished in Signal Grey to RAL 7004.
f High efficiency filters, cooling and heat pump coils available.
Electrical Details
f Quick change plug connectors fitted to all electrical components for easy maintenance.
Unit size
Fan power, kW, per fan
Fan FLC, amps, max
7
2.2
4.7
8
3.0
6.4
9
3.0
6.4
To select an electric heater use the formula on page 4.
A control panel will be designed in the VES Sales Department to match the components selected for the AHU.
Sound Data
Ecovent
NRG
Fan Speed
RPM
63
Sound Spectrum dB re10-12w PWL
Centre Frequency Hz
125
250
500
1k
2k
7-35Hz
7-45Hz
7-55Hz
7-65Hz
7-75Hz
7-85Hz
1000
1280
1580
1825
2115
2480
62
66
70
73
76
79
65
70
74
77
80
84
69
73
78
81
85
88
68
73
78
82
85
88
64
69
74
78
82
85
60
64
70
74
77
81
55
60
65
69
73
77
51
56
61
65
69
73
35
40
45
50
50
55
30
35
40
45
45
50
8-30Hz
8-40Hz
8-50Hz
8-60Hz
8-70Hz
8-80Hz
860
1150
1450
1700
2000
2250
63
67
72
75
78
81
67
71
76
79
82
85
70
74
79
83
87
90
69
74
79
83
87
90
65
69
75
80
83
86
61
65
71
75
79
82
56
61
66
71
75
78
52
56
62
66
70
73
35
40
45
50
55
60
30
35
40
45
50
55
9-30Hz
9-35Hz
9-40Hz
9-45Hz
9-50Hz
9-55Hz
852
1003
1140
1286
1419
1550
67
70
73
75
78
79
70
74
77
79
81
83
73
77
80
83
85
87
72
76
79
83
85
87
68
72
75
78
81
83
63
68
71
74
77
79
59
63
67
70
72
74
54
59
62
65
68
70
40
45
50
50
55
55
35
40
45
45
50
50
4k
8k
Casing Noise Breakout
NR @ 1m
NR @ 3m
Sound Power Level PWL, dB, linear, in accordance with ISO13347-1:2004
Noise levels stated are at the pressure side of the fan. At suction side the levels are 2dB lower at all points. They are at mid-duty point on the fan curves.
Noise Breakout from Ecovent NRG Cases The sound reduction for the unit cases size 7 - 9 is as follows:
Centre Frequency Hz:
Sound Reduction, IL, dB
63
4
125
8
250
16
500
29
1k
32
2k
30
4k
36
8k
34
This case sound reduction I.L. should be deducted from the fan sound power spectrum, and further deduction made for
measurement distance from case - 1 metre 8 dB, 2 metres 12 dB, 3 metres 14 dB, 6 metres 24 dB.
This distance figure should be deducted from each octave band and will result in a sound pressure level spectrum at that distance.
To further reduce noise breakout, heavy weight panel infills are available.
10
Control details
Specific Fan power
p4 / 5
p12 / 13
Unit dimensions
Silencer dimensions
p18 / 19
p21
LPHW heater details
Fan commissioning
p22
p24
Selection
Curves
ECO NRG 7
ECO NRG 8
ECO NRG 9
11
HEAT RECOVERY AIR HANDLING UNITS
Specific
Fan Power
(SFP)
Watts/litre/second per fan
f As required in Building Regulations, Part L2A, Section 10, Equation 11, the SFP for the
supply and extract fans is to be combined.
f The Ecovent NRG figures are shown for each fan, as the duties may differ on supply
and extract.
f The figures for each fan are therefore to be added together to determine the
combined SFP.
f To comply with these requirements it may be necessary to reduce the external
resistance, go to a larger unit, or one with a three phase motor.
ECO NRG P Size 0, 1 & 2 at full speed
Air Volume
m3/sec
Size 0
0.100
0.125
0.150
0.175
0.200
0.225
0.250
0.275
0.300
0.325
0.350
0.375
0.400
230 volt 1 phase
Size 1
1.35
1.10
0.89
0.75
0.65
0.55
Size 2
1.55
1.35
1.20
1.05
0.92
0.83
0.74
0.66
1.80
1.62
1.52
1.39
1.28
1.18
1.09
0.99
0.93
ECO NRG Size 3, 4, 5 & 6 at full speed
Air Volume
m3/sec
230 volt 1 phase
Size 4
Size 5
Size 3
Size 6
400 volt 3 phase
Size 3
Size 4
Size 5
Size 6
0.20
1.67
1.97
3.90
4.61
0.99
1.81
3.00
4.40
0.30
1.23
1.44
2.24
3.73
0.73
1.27
1.89
2.82
2.09
0.40
0.98
1.17
1.70
2.92
0.60
1.00
1.44
0.50
0.80
0.96
1.38
2.39
0.49
0.81
1.19
1.72
0.60
0.67
0.81
1.16
2.04
0.42
0.69
0.99
1.39
0.70
0.99
1.75
0.85
1.24
0.80
0.70
0.87
1.53
0.73
1.04
0.90
0.75
1.36
0.65
1.00
1.10
0.88
1.23
1.11
0.80
0.73
ECO NRG Size 7 at various speeds
Air Volume
m3/sec
35Hz
40Hz
45Hz
50Hz
55Hz
60Hz
65Hz
70Hz
75Hz
80Hz
85Hz
0.30
0.79
0.92
0.98
1.12
1.46
1.77
1.85
2.24
2.54
0.40
0.58
0.71
0.81
0.94
1.08
1.30
1.42
1.69
1.95
2.27
2.73
3.24
0.50
0.49
0.55
0.66
0.76
0.89
1.06
1.15
1.36
1.58
1.85
2.19
2.59
0.54
0.64
0.76
0.88
0.96
1.14
1.35
1.57
1.85
2.19
0.46
0.55
0.64
0.76
0.85
0.99
1.15
1.37
1.58
1.88
0.56
0.66
0.75
0.84
1.03
1.19
1.41
1.66
0.48
0.56
0.66
0.74
0.92
1.07
1.27
1.49
0.49
0.59
0.68
0.83
0.96
1.04
1.35
0.52
0.60
0.74
0.86
0.94
1.22
0.55
0.67
0.76
0.86
1.10
0.60
0.70
0.77
0.99
0.60
0.70
0.80
0.90
1.00
1.10
1.20
1.30
12
400 volt 3 phase
30Hz
1.40
1.50
0.46
0.47
0.90
0.83
ECO NRG Size 8 at various speeds
Air Volume
m3/sec
400 volt 3 phase
30Hz
35Hz
40Hz
45Hz
50Hz
55Hz
60Hz
65Hz
2.34
70Hz
75Hz
80Hz
2.09
0.30
0.62
0.83
1.04
1.37
1.71
2.05
0.40
0.48
0.63
0.79
1.05
1.32
1.64
1.87
0.50
0.39
0.52
0.65
0.86
1.08
1.37
1.56
1.97
0.60
0.70
0.33
0.28
0.43
0.36
0.56
0.48
0.72
0.62
0.90
0.79
1.12
0.98
1.33
1.19
1.65
1.44
1.99
1.78
2.09
0.80
0.24
0.28
0.42
0.54
0.68
0.86
1.07
1.27
1.54
1.84
1.84
0.90
0.27
0.36
0.47
0.60
0.76
0.95
1.16
1.40
1.68
1.68
1.00
0.24
0.32
0.42
0.54
0.68
0.85
1.05
1.25
1.52
1.52
0.28
0.37
0.48
0.60
0.77
0.94
1.14
1.39
1.38
0.33
0.30
0.43
0.39
0.55
0.50
0.69
0.63
0.86
0.78
1.04
0.96
1.27
1.16
1.27
1.16
1.10
1.20
1.30
1.40
0.46
0.57
0.72
0.88
1.08
1.07
1.50
0.36
0.42
0.52
0.66
0.81
1.00
1.00
1.60
0.38
0.48
0.60
0.75
0.93
0.93
0.44
0.56
0.69
0.87
0.87
1.80
0.53
0.64
0.81
0.74
1.90
0.49
1.70
2.00
2.10
2.20
0.59
0.75
0.70
0.56
0.70
0.65
0.65
0.62
0.61
0.59
ECO NRG Size 9 at various speeds
Air Volume
400 volt 3 phase
m /sec
30Hz
35Hz
40Hz
45Hz
50Hz
55Hz
0.60
0.75
0.96
1.16
1.51
1.90
2.18
0.70
0.64
0.84
1.05
1.34
1.69
1.97
0.80
0.57
0.76
0.95
1.21
1.57
1.75
0.90
0.52
0.69
0.87
1.11
1.43
1.62
1.00
0.47
0.63
0.80
1.03
1.32
1.51
1.10
0.42
0.58
0.75
0.97
1.24
1.42
1.20
0.40
0.54
0.70
0.94
1.15
1.35
1.30
0.37
0.50
0.65
0.90
1.07
1.26
1.40
0.35
0.46
0.60
0.79
1.02
1.17
1.50
0.32
0.43
0.57
0.75
0.97
1.12
1.60
0.31
0.40
0.55
0.72
0.93
1.07
1.02
3
1.70
0.38
0.52
0.67
0.86
1.80
0.35
0.49
0.64
0.82
0.97
0.46
0.60
0.78
0.93
1.90
2.00
0.43
0.58
0.75
0.89
2.10
0.40
0.55
0.72
0.85
2.20
0.52
0.67
0.82
2.30
0.49
0.64
0.78
2.40
2.50
0.48
0.61
0.58
0.75
0.72
0.55
0.69
2.60
2.70
0.66
2.80
2.90
0.63
0.60
13
DIMENSIONS
Sizes 0,1&2
Plantroom/
Ceiling Void
f Top or bottom access.
f Unit can be handed in one
of two configurations.
f Horizontal mounting.
f Fitted hot water or electric
heater.
f Isolators fitted on fan side
of unit.
f Mounting foot suitable for M8
drop rod or self-levelling feet.
Plan View
Exhaust
Air
Supply
Air
Air
Intake
Extract
Air
50 spigots
Side View
350
unit
height
Adjustable
feet
25
45-110
1700 unit length
1750 centres
End View
250
typ.
700 centres
315 O
spigots
182.5
165.5
1100 centres
1200 unit width
Unit weight
120kgs
f Fan, filter, heater access via removable lids.
f Isolators, controls, air flow and filter pressure switches will be mounted on fan side of unit.
f Minimum 324mm required for filter removal above or below unit.
f The optional peristaltic pump and isolator will be supplied loose for fitting by customer.
14
Sizes
0,1&2
Weatherproof
Units
f Flat horizontal units with top
access.
f Unit can be handed in one
of two configurations.
f Fitted hot water or electric
heater.
f Isolators fitted on fan side
of unit.
f Self levelling mounting feet are
adjustable from 45 - 110mm.
Exhaust
Air
Plan View
Supply
Air
Extract
Air
Air
Intake
50 spigots
Side View
359
unit
height
Adjustable
feet
45-110
1700 unit length
1750 centres
255
typ.
703 centres
315 O
spigots
End View
165
165
1100 centres
40
louvre
1200 unit width
40
louvre
Unit weight
120kgs
f Fan, filter, heater access via removable lids.
f Isolators, controls, air flow and filter pressure switches will be mounted on fan side of unit.
f No pump or trap necessary to drain pan on weatherproof unit.
15
DIMENSIONS
Sizes
3,4,5& 6
f Flanged connections
20mm Mez.
f Handings may be left
or right hand side.
f Optional controls
fitted on supply side.
Plantroom
Units
f Silencers can be fitted
direct to units.
Plan View
Flat Units
Top or bottom access
to filters, fans and
damper motor
E
Width
12.5
End View
Side View
(typical both ends)
B - Unit Length
200
E - Width
50
A
Height
F
50
L
G - Spigot
25
G - Spigot
K
50
C
D
Section ‘B’
Section ‘A’
End View
Side View
(typical both ends)
Stacked Units
Access and controls
can be left or right
hand side.
J - Width
L
B - Unit Length
200
G
Spigot
H
Height
K
Note access requirements to
side of unit for maintenance:
Size 3 & 4 - 600mm
Size 5 & 6 - 850mm
G
Spigot
L
F - Spigot
50
25
25
C
D
50
Section ‘B’
Section ‘A’
Typ.
25
50
Dimensions (mm)
Unit Size
16
A
B
C
D
E
F
G
H
J
K
L
3&4
550
2250
1050
1200
1300
450
550
1300
550
100
50
5
650
2600
1150
1450
1550
550
650
1550
650
100
6
700
2650
1200
1450
1675
600
700
1675
700
125
Weight kg Weight kg
Section ‘A’ Section ‘B’
154
114
75
228
143
75
246
167
Sizes
3,4,5& 6
Weatherproof
Units
f Handings may be left
or right hand side
f Optional controls
fitted on supply side.
f Flanged connections
20mm Mez
f Silencers can be fitted
direct to unit.
Plan View
Flat Units
100
Side access to filters, top
access to fans and damper
motor.
Note access requirements to
side of unit for maintenance:
Size 3 & 4 - 600mm
Size 5 & 6 - 850mm
E
Unit
Width
100
Side View
End View
50
M
E - Unit Width
50
B - Unit Length
50
A
Unit
Height
F
Spigot
50
100
L
G - Spigot
C - Section ‘B’
L
G - Spigot
K
End View
J - Width
100
Stacked Units
M
D - Section ‘A’
Side View
100
50
50
B - Unit Length
L
G
Spigot
Access and controls can
be left or right hand side.
H
Height
K
G
Spigot
L
100
50
F - Spigot
50
50
C - Section ‘B’
M
D - Section ‘A’
Dimensions (mm)
Unit Size
A
B
C
D
E
F
G
H
J
K
L
M
450
550
1375
550
100
50
250
3&4
625
2250 1050 1200 1300
5
725
2600 1150 1450 1550
550
650
1550
650
100
75
6
775
2650 1200 1450 1675
600
700
1750
700
125
75
Weight kg Weight kg
Section ‘A’ Section ‘B’
180
127
300
228
143
300
246
167
17
DIMENSIONS
Sizes
7,8& 9
Plantroom
Units
f Side access to filters, fans, damper
motor.
f Handings may be left or right hand side.
f Inverters fitted inside of the unit with a
keypad on the outside.
f Optional controls fitted on supply side.
f Units supplied in two sections.
f All flanges 30mm Mez.
f Silencers can fit direct to unit.
Flat Units
Plan View
Note access requirements to
side of unit for maintenance:
Size 7 - 850mm
Size 8 - 900mm
Size 9 - 1000mm
End View
(typical both ends)
Side View
E - Unit Width
B - Unit Length
A
Unit
Height
F
Spigot
100
100
G - Spigot
150
200
G - Spigot
100
C - Section ‘B’
D - Section ‘A’
End View
Stacked Units
50
Typ.
100
Side View
(typical both ends)
B - Unit Length
J - Width
G
Spigot
H
Height
150
G
Spigot
100
100
F - Spigot
200
C
D
50
Section ‘B’
Section ‘A’
Typ.
100
Dimensions (mm)
Unit Size
7
8
9
18
A
B
C
D
E
F
900 2800 1300 1500 1600 700
1050 2800 1300 1500 1850 850
1200 2925 1425 1500 2150 1000
G
625
750
900
H
J
1600 900
1850 1050
2150 1200
Weight kg
Section ‘A’
Weight kg
Section ‘B’
289
347
429
282
346
436
Sizes
7,8& 9
f Side access to filters, fans, damper
motor.
f Handings may be left or right hand side.
f Inverters fitted inside of the unit with a
keypad on the outside.
Weatherproof
Units
f Optional controls fitted on supply side.
f Units supplied in two sections.
f All flanges 30mm Mez.
f Silencers can fit direct to unit.
Plan View
Flat Units
Note access requirements to
side of unit for maintenance:
Size 7 - 850mm
Size 8 - 900mm
Size 9 - 1000mm
End View
100
Side View
50
K
E - Unit Width
50
B - Unit Length
Typ.
A
Unit
Height
F
Spigot
100
100
G - Spigot
150
G - Spigot
100
Stacked Units
100
50
200
Typ.
C - Section ‘B’
J - Width
K
Side View
End View
100
D - Section ‘A’
100
B - Unit Length
50
50
G
Spigot
H
Height
K
150
G
Spigot
100
100
F - Spigot
200
100
50
C
D
Typ.
Section ‘B’
Section ‘A’
K
Dimensions (mm)
Unit Size
7
8
9
A
B
C
D
E
975 2800 1300 1500 1600
1125 2800 1300 1500 1850
1275 2925 1425 1500 2150
F
G
700
850
1000
625
750
900
H
J
1675 900
1925 1050
2225 1200
K
Weight kg
Section ‘A’
Weight kg
Section ‘B’
350
450
550
325
393
486
300
362
452
19
HEAT RECOVERY AIR HANDLING UNITS
Silencers
f All silencers designed to fit directly to Ecovent NRG unit if required.
Selection Curve - ECO NRG P Size 0, 1 & 2
Ecovent NRG P unit
0, 1 & 2
Silencer Model
ALS 5/1200/STD/CS
Dimensions - mm
Dia. 317
350
12.5
typ.
100
550
100
1200
Fixing holes in top and bottom flanges 11mm diameter.
Silencer spigots designed to fit over Ecovent unit spigots.
Silencer attenuation - Insertion Loss - dB
Eco NRG P
Model
0, 1 & 2
Silencer
Model
63
125
250
ALS 5/1200/STD/CS
6
8
12
Centre Frequency Hz
500
1k
19
28
2k
4k
8k
30
24
21
Silencers constructed with galvanised sheet steel cases and circular spigots to match the Ecovent
NRG P unit.
Silencer infill - resin bonded mineral wool slab with glass tissue facing to airways.
20
Silencers
Selection Curves - ECO NRG Sizes 3-9
Silencer attenuation - Insertion Loss - dB
Eco NRG
Model
3
4
5
6
7
8
9
Silencer
Model
63
125
Centre Frequency Hz
250
500
1k
2k
4k
8k
NRG VA 300/1300/P
NRG VA 400/1300/P
NRG VA 500/1600/P
NRG VA 600/1600/P
NRG VA 700/1600/P
NRG VA 800/1600/P
NRG VA 900/1600/P
5
5
6
6
7
7
8
9
9
12
11
13
12
15
16
16
22
21
24
22
26
39
39
48
46
50
47
50
31
31
40
38
42
34
45
26
26
28
27
30
25
32
30
30
39
37
41
38
43
39
39
48
46
50
47
50
Silencers constructed using galvanised sheet steel, with Mez flanges to match Ecovent NRG unit.
Acoustic splitters - resin bonded mineral wool slab, with glass tissue facing, retained by perforated
galvanised steel sheet.
Optional powder coat finish for weatherproof units.
Silencers to be fitted in plane to suit AHU spigot i.e. heights and widths are interchangeable.
Dimensions - mm
A
C
B
Model
NRG VA 300/1300/P
NRG VA 400/1300/P
NRG VA 500/1600/P
NRG VA 600/1600/P
NRG VA 700/1600/P
NRG VA 800/1600/P
NRG VA 900/1600/P
A
B
C
450
450
550
600
700
850
1000
550
550
650
700
625
750
900
1300
1300
1600
1600
1600
1600
1600
Note:
A&B
dimensions
can be
reversed.
21
HEAT RECOVERY AIR HANDLING UNITS
Hot Water
Heater
Batteries
Model
0, 1 & 2
3
4
5
6
7
8
9
Performance Data
f Based on EAT -5°C.
f Low pressure hot water LPHW 82 / 71°C.
f VES Sales Department can advise coil data for other conditions.
Air Volume
m3/sec
0.100
0.125
0.150
0.175
0.200
0.225
0.250
0.275
0.300
0.325
0.350
0.375
0.400
0.150
0.250
0.400
0.500
0.200
0.300
0.450
0.600
0.300
0.450
0.650
0.800
0.300
0.500
0.750
1.000
0.400
0.700
1.000
1.250
0.500
1.000
1.400
1.800
0.600
1.250
1.850
2.500
Maximum
Leaving Air
Temp °C
48
45
41
37
35
32
30
28
27
25
24
23
22
46
38
29
25
44
37
29
24
41
35
29
25
45
35
31
25
44
33
27
24
45
33
27
23
44
32
25
21
Maximum
kW
Output
6.5
7.6
8.4
9.0
9.6
10.0
10.5
11.0
11.4
11.8
12.2
12.5
12.9
9.3
13.0
16.5
18.2
11.8
15.2
18.5
21.1
16.9
21.7
26.8
29.1
18.4
24.2
33.0
36.3
23.9
32.2
38.7
43.8
30.6
46.5
54.2
61.8
35.6
55.9
67.2
79.0
Water Flow
Rate
l/sec
0.14
0.17
0.19
0.20
0.21
0.23
0.24
0.25
0.26
0.27
0.27
0.28
0.29
0.21
0.29
0.36
0.40
0.26
0.34
0.41
0.47
0.38
0.48
0.60
0.65
0.41
0.54
0.73
0.81
0.53
0.71
0.86
0.97
0.68
1.03
1.20
1.38
0.80
1.24
1.50
1.75
Water
Pressure
KPa
4.0
5.5
6.5
7.5
8.4
9.3
10.1
10.9
11.7
12.5
13.2
13.9
14.6
3.0
4.0
6.0
7.0
3.0
5.0
7.0
9.0
4.0
6.0
7.0
8.0
4.0
7.0
10.0
12.0
5.0
6.0
8.0
10.0
3.0
6.0
7.0
8.0
4.0
5.0
7.0
9.0
Coil
Connection
Size BSP
!?2”
1”
1”
1!?4”
1!?4”
1!?4”
1!?2”
1!?2”
f The above coils consist of two rows of copper tubes mechanically bonded into plate type
aluminium fins.
f The headers and return bends are also copper, terminating in standard BSP connections.
f Air vent and drain fitted outside of unit.
22
Twin
extract
fan
option
f With a plate heat exchanger there is no cross-contamination of airflow, so
it is possible to extract air from contaminated sources, and incorporate run
and standby extract fans with an autochangeover facility within the controls.
f This facility is available with all tubular framed units i.e. size 3 through to size 9,
including flat or stacked, plantroom or weatherproof.
f The case will be wider or higher to accommodate the extra fan as detailed below.
Flat Configuration
Plan View
E
Width
E x 1.5
Stacked Configuration
Side Elevation
Check height of stacked units with sales office.
Backdraught shutters will be fitted behind each fan, and the
fans will automatically change over every 12 hours of operation
under the dictate of the AF 500 controller.
23
HEAT RECOVERY AIR HANDLING UNITS
Sizes 7, 8 and 9
air volume and
pressure
commissioning
f The centrifugal plug fans have infinite
adjustment and control by inverter, with real
energy savings as the speed is reduced.
f Very low SFP (specific fan power).
f Virtually maintenance free – no belts to
check or replace.
Instant and accurate measuring of the
air volume.
It is done right at the fan:
f The differential static pressure (Pdiff) is measured across the fan section and the tapping on
the fan inlet ring using a micromanometer.
f There is a k factor for each size of fan:
Size 7 = 154
Size 8 = 197
Size 9 = 308
f To determine the air volume multiply the square root of the pressure differential by the
k factor
ie: Qv(m3/hr) = k factor x √Pdiff
Example:
Size 7 unit k factor = 154
Static pressure differential at fan 700Pa
Qv = 154 x √700 = 4074 m3/hr
To simplify this calculation further a differential pressure diagram for each fan is published in
the O & M instructions for these products.
The fans on each size 7-9 Ecovent NRG unit are connected with the tubing and skin fittings
to the outside of the unit case, so no drilling or special parts are necessary. Just plug in the
micromanometer, read the pressure differential, and calculate the air volume.
There will be no need for duct traverses.
© 2010 VES Andover Ltd.
Issue ECO02 - 02/2010
ISO 9001:2008
Cert. No. Q05375
VES reserve the right to amend product specifications and details without notice.
VES Andover Ltd
Eagle Close, Chandlers Ford Industrial Estate, Chandlers Ford, Eastleigh, Hampshire SO53 4NF
Tel: 08448 15 60 60 I Fax: 023 8026 1204 I Email: info@ves.co.uk
www.ves.co.uk