Vents PA W Series Mounting instructions

USER’S OPERATION MANUAL
PA W
Air supply unit
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PA W
Introduction
Use
Delivery set
Designation key
Main technical data
Safety requirements
Design and operating logic
Mounting and set-up
Connection to power mains
Technical maintenance
Fault handling
Storage and transportation rules
Manufacturer’s warranty
Acceptance certicate
Electrical connection certicate
Warranty card
3
3
3
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4
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CONTENT
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The unit is designed for supply of intake warmed up air into cottages, oces, hotels, cafes,
conference halls and other domestic and public premises.
The unit is a component unit and is not designed for independent operation.
Transported medium must not contain any ammable or explosive mixtures, evaporation of
chemicals, coarse dust, soot and oil particles, sticky substances, brous materials, pathogens or any
other harmful substances.
INTRODUCTION
USE
DELIVERY SET
The present user’s operation manual contains technical description, data sheet, installation and
mounting guidelines for the air supply unit PA W, VENTS series (hereinafter referred as the unit).
The unit is not designed to be used by children, physically or mentally disabled
persons, persons with sensory disorder, persons with no appropriate experience or
expertise.
The unit may be operated by qualied experts after appropriate instruction about
its use and operation.
Install the unit to be out of reach of children.
Unit - 1 item;
User’s manual - 1 item;
Transport packing: wooden box - 1 item.
DESIGNATION KEY
Number of power supply phases
Heater type
W2 - 2-row water heater
W3 - 3-row water heater
W4 - 4-row water heater
Air capacity [m3/h]
01, 02, 03, 04
Unit type
PA - air supply unit
PA - XX - WХ 3
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PA W
MAIN TECHNICAL DATA
The unit is designed for indoor application with the ambient temperature ranging from -25°C to
+ 55°C for the units PA 01 W2 and PA 01 W4, from -25°C to + 45°C for the units PA 02 W2, PA 02 W4, PA
03 W2 and PA 03 W4, from -25°C to +70 °C for the units PA 04 W2 and PA 04 W3 at relative humidity
up to 80%.
Ingress Protection (IP) rating from solid objects and liquids:
IP 44 for the unit motors;
IP 22 for the assembled unit connected to the air ducts.
The unit series designation, main overall and connecting dimensions, external view are shown in
g. 1 and in table 1. For the technical data, refer to the table 2.
The unit design is regularly being improved, so some models can slightly dier from those ones
described in this manual.
Fig. 1. Overall and connecting dimensions of the unit
Type Dimensions [mm]
B B1 B2 B3 H H1 H2 L L1
PA 01 W 400 420 624 582 200 220 374 1145 1106
PA 02 W 500 520 689 646 300 320 447 1250 1212
PA 03 W 600 620 787 744 350 370 500 1252 1212
PA04 W 700 720 888 844 400 420 546 1302 1262
Table 1. Overall and connecting dimensions of the unit
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Type PA 01
W2
PA 01
W4
PA 02
W2
PA 02
W4
PA 03
W2
PA 03
W4
PA 04
W2
PA 04
W3
Voltage, 50 Hz [V] 3 ~ 400
Max. fan power [W] 320 620 1330 2300
Fan current [A] 0,55 1,05 2,4 4,3
Number of water heating rows 2 4 2 4 2 4 2 3
Total unit power [W] 0,32 0,62 1,33 2,30
Total unit current [A] 0,55 1,05 2,4 4,3
Max. air capacity, m3/h 1200 2350 3260 4100
Rotation speed [min -1] up to 2700 up to 2690 up to 2730 up to 2840
Noise level, 3 m [dB(A)] 51 54 57 75
Max. transported air
temperature [°C]
from -25 to
+55 from -25 to +45 from -25 to +70
Casing material Aluzinc
Insulation 50 mm mineral wool
Filter Pocket G4(F7)*
Connected air duct diameter
[mm] 400x200 500x350 600x350 700x400
Weight [kg] 55 57 61 63 91 94 107 110
* - option
Table 2. Unit technical data
The main technical data of the water heaters integrated into the units are shown in diagrams 2,
3, 4, 5, 6, 7, 8).
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PA W
.
PA 01 W2
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed. Starting from 950 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.35 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -15°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (90/70). From this point draw a
ver
tical line (3) to the supply air temperature axis on top of the graphic (+23 °C).
Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -15°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (90/70), from here draw a vertical line (5) up to the scale representing the heating coil capacity (13.5 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.14 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (1.5 kPa).
Fig. 2 Calculation of water heater parameters
The basic thermal dynamic characteristics of the water heater for the units PA 01 W2 are stated
in g. 2.
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Water heater parameters calculation example Air Speed. Starting from 950 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.35 m/s. Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -15°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (70/50). From this point draw a vertical line (3) to the supply air temperature axis on top of the graphic (+29 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -15°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (70/50), from here draw a vertical line (5) up to the scale representing the heating coil capacity (16.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.2 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (2.1 kPa).
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
PA 01 W4
Fig. 3 Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 01 W4 is shown in g. 3.
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PA W
PA 02 W2
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water ow through the water heating coils [l/s]
Water heater parameters calculation example Air Speed. Starting from 2000 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.75 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -15°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (90/70). From this point draw a verti- cal line (3) to the supply air temperature axis on top of the graphic (+22 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -15°C (red curve) and draw a hori- zontal line (4) from this point to the right until it crosses water in/out temperature curve (90/70), from here draw a vertical line (5) up to the scale representing the heating coil capacity (28.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.35 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (3.8 kPa).
Fig. 4. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 02 W2 is shown in g. 4.
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PA 02 W4
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed. Starting from 2000 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.75 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -15°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (70/50). From this point draw a vertical line (3) to the supply air temperature axis on top of the graphic (+31 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -15°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (70/50), from here draw a vertical line (5) up to the scale representing the heating coil capacity (35.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.43 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (9.0 kPa).
Fig. 5. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 02 W4 is shown in g. 5.
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PA W
PA 03 W2
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed.
Starting from 2500 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.32 m/s.
Supply air temperature.
Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -20°C;
then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (90/70). From this p
oint draw a
vertical line (3) to the supply air temperature axis on top of the graphic (+22 °C). Heating coil capacity.
Prolong the line (1) up to the point where it crosses the outside air temperature -20°C (red curve) and draw a
horizontal line (4) from this point to the right until it crosses water in/out temperature curve (90/70), from here draw a vert
ical line (5) up to
the scale representing the heating coil capacity (40.0 kW). Water ow.
Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.47 l/s).
Water pressure drop.
Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (6.0 kPa).
Fig. 6. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 03 W2 is shown in g. 6.
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PA 03 W4
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed. Starting from 2700 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.59 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -25°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (70/50). From this point draw a vertical line (3) to the supply air temperature axis on top of the graphic (+28 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -25°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (70/50), from here draw a vertical line (5) up to the scale representing the heating coil capacity (58.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.73 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (14.0 kPa).
Fig. 7. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 03 W4 is shown in g. 7.
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PA W
PA 04 W2
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed. Starting from 3500 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.48 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -20°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (90/70). From this point draw a vertical line (3) to the supply air temperature axis on top of the graphic (+22 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -20°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (90/70), from here draw a vertical line (5) up to the scale representing the heating coil capacity (55.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.68 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (9.2 kPa).
Fig. 8. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 04 W2 is shown in g. 8.
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PA 04 W3
Air temperature after heater [°C]
Air ow through the heater [m3/h]
Air speed inside the water heating coils [m/s]
Water ow through the water heating coils [l/s]
Water pressure drop [kPa]
External air temperature [°C]
Coil heating capacity [kW]
Water heater parameters calculation example Air Speed. Starting from 3500 m3/h on the air ow scale draw a vertical line (1) till the air speed axis which makes 3.48 m/s.
Supply air temperature. Prolong the line (1) of air ow up to the point where it crosses the outside air temperature (blue curve), e.g. -25°C; then draw a horizontal line (2) from this point to the left till crossing water in/out temperature curve (80/60). From this point draw a vertical line (3) to the supply air temperature axis on top of the graphic (+24 °C). Heating coil capacity. Prolong the line (1) up to the point where it crosses the outside air temperature -25°C (red curve) and draw a horizontal line (4) from this point to the right until it crosses water in/out temperature curve (80/60), from here draw a vertical line (5) up to the scale representing the heating coil capacity (65.0 kW). Water ow. Prolong the line (5) down to water ow axis at the bottom of the graphic (6) (0.81 l/s). Water pressure drop. Draw the line (7) from the point where line (6) crosses the black curve to the pressure drop axis. (8.0 kPa).
Fig. 9. Calculation of water heater parameters
Performance chart for the water heater parameters of the unit PA 04 W3 is shown in g. 9.
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PA W
43 21
Fig. 10. Design and operating logic
SAFETY REQUIREMENTS
While operating and mounting the unit consider the requirements of the present operation manual
as well as general requirements of all applicable local and national building and electrical codes and
standards.
Before connecting the unit to power mains make sure that the unit is free of any visible damages or
any other foreign objects inside the casing that can damage the impeller blades.
Otherwise please contact the service centre.
Warning!
Disconnect the unit from power supply prior to any mounting, servicing, connection
or repair operations with the unit.
Do not!
• Do not operate the unit beyond the specied temperature range. The unit is not
rated for operation in an aggressive and explosive medium!
• Do not connect clothes dryers or similar equipment to the ventilation system!
• Do not use the unit for transportation of air-dust mixture!
DESIGN AND OPERATING LOGIC
The units are designed for supply of ltered warmed-up air to the premises.
The unit design is shown in g, 10. The unit basic modication includes:
Electric motor and fan, item 1.
Built-in water heater, item 2.
Filter of G4 (F7) class, item 3.
Removable cover, item 4.
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Washer
Nut
Antivibration rubber
Nut and
counter-nut
Example 2
Antivibration rubber
Nut
Washer
Nut
Washer
Example 1
Fig. 11. Unit mounting
MOUNTING AND SET-UP
Mount the unit in such a way to provide a sucient access to the unit for maintenance and
servicing works. Air ow direction in the system must match the pointer direction on the unit cover.
Suspend the unit to the ceiling on the threaded rod that is xed inside the dowel or x it rigidly
on a horizontal surface (g. 11).
Integrate the unit into the ventilation system by connecting it to rectangular or round air ducts.
For connection to round air ducts, use matching duct connectors (available upon separate order).
To attain the best performance of the unit while mounting connect a straight 1 m duct section on
both sides of the unit.
If the unit is installed at the air duct inlet or outlet it shall be equipped with a grille with the mesh
width up to 12.5 mm or any other protecting device to prevent free access to the unit fans.
To increase the unit eciency connect the water heating coils on counter-ow basis (g. 12).
All the stated calculations are valid for counter-ow connection of the water heater. The water
heater connected on counter-ow basis has lower capacity but higher frost-resistance.
Fig. 12. Water heater connection
b) Counter-ow connectionа) Direct ow connection
water inlet
water inlet
water outlet
water outlet
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PA W
CONNECTION TO POWER MAINS
The unit is rated for connection to three-phase ac 400 V / 50 Hz.
Connect the unit to power supply by means of insulated, durable and thermal-resistant cords
(cables, wires) with respective cross section, in any case no less 4 mm2.
However, the given section value is tentative.
The choice of the required wire section in each case shall be based on the wire type, its maximum
permissible heating temperature, its insulation, length and installation method.
Use copper wires only.
Connect the unit to power supply through the external automatic thermal-magnetic circuit
breaker integrated into the power mains.
The trip current must be somewhat above the current consumption, refer table 2.
Connect the fan motor to power mains through the terminal block X1 located on the unit side
wall in compliance with wiring diagram and terminal designation.
Fig. 4 shows the wiring diagram for connection of the fan motor to three-phase power mains.
The terminal designations are shown on the sticker inside the terminal box.
To connect the unit to power mains route the cables through the screwed cable gland located on
the terminal block side to preserve the ingress protection rating.
Install an external automatic thermal-magnetic circuit breaker on the external input (400 V / 50
Hz) to enable breaking of all the mains phases.
Easy access to the external circuit breaker QF should be provided for the emergency power cuto
of the unit.
Disconnect the unit from power mains prior to any wireworks. Connection of the unit
to power mains is allowed by a qualied electrician with a work permit for the electric
units up to 1000 V after detailed study of the present user’s manual. The rated electrical
parameters of the unit are shown on the sticker. Any internal connection modications
are not allowed and void warranty.
SAFETY PRECAUTIONS:
Mount the unit on a rigid and stable structure.
Use bolts to suspend the unit to the ceiling. Make sure that the construction has sucient load
capacity to carry the unit weight. Otherwise reinforce an installation place by beams etc. After that
x the bolts.
If the construction strength or surface is not rigid enough it can resonate with the unit and create
abnormal noise and vibration. While mounting the unit provide enough service space and an access
door in the ceiling for inspection and maintenance of the lters, heat exchanger and fans.
One access door is required for each unit. For details, refer the outline drawing, g. 1.
If the bolts used for the unit suspension to the ceiling are too short, the unit may generate
abnormal noise and resonate with the ceiling.
Use longer bolts with to prevent resonance. If the connection point to the spiral seam duct is
supposed to be the source of the abnormal noise, install a exible air duct instead of the exible one.
For the better eect you may use the exible anti-vibration connectors.
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Fig. 13. Unit wiring diagram
~400 V
50 Hz
L1
L2
L3
PE
QF
L1
L2
L3
L1
L2
L3
X1
W2
V2
V1
U2
U1
W1
1
2
3
4
5
6
7
8
9
10
PE
TB1
TB1
TB2
TB2
TB1
TB2
QF - automatic circuit breaker (not included into the delivery set);
X1 - terminal block;
TB1, TB2 - motor overheating protection contact.
MAINTENANCE
Maintenance operations of the unit are required 3-4 times per year.
Maintenance includes regular cleaning and the following operations:
1. Filter maintenance (3-4 times per year).
Dirty lter increases air resistance in the system and reduces supply air volume. The lter requires
cleaning once in 3-4 months. Clean the lter with a vacuum cleaner or replace it. For new lters, contact
your seller.
To replace the lter:
1. remove the cover;
2. replace the lter;
3. re-install the cover;
2. Fan inspection (once per year).
Even in case of regular maintenance of the lters, some dust and grease can get accumulated inside
the fans and reduce the fan performance and supply air ow. Clean the fans with a soft brush or cloth.
Do not use water and abrasive detergent, sharp objects or solvents for cleaning to prevent the
impeller damage.
3. Ductwork system inspection (once in 5 years).
Even if you follow all the listed maintenance guidelines, some dust can get accumulated inside the
air ducts and reduce the unit performance.
Duct maintenance means their regular cleaning or replacements.
If the unit is equipped with a full set of automatic control system, for the internal
wireworks and internal connection to the user’s manual of the automatic control system
for air handling unit with water heater. The manual is included into the delivery set.
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PA W
FAULT HANDLING
Problem Possible reasons Fault handling
The fan(s) do(es)
not get started. No power supply.
Make sure the power supply line is
connected correct, otherwise troubleshoot
the connection error.
Low air ow.
The lter or fan is soiled. Clean or replace the lter, clean the fans.
Ventilation system is soiled or
damaged.
Check the grille and clean it of required;
make sure that the air ducts are not soiled
and not damaged.
Noise, vibration. The impeller is soiled. Clean the impeller.
Loose screw tightening. Tighten the screws to stop.
Possible faults and fault handling
STORAGE AND TRANSPORTATION RULES
Store the unit in the manufacturer’s original packing box in a closed ventilated premise with
temperature range from +10°C to +40°C and relative humidity less than 80% (at +20°C).
Vapours or particles which can cause corrosion or damage the insulation or connection tightness
are not allowed in the storage environment.
Use hoist machinery for handling and transportation to prevent possible mechanical damages
of the unit.
Full the requirements for transportation of the specied cargo type during cargo-handling
operations.
Use any vehicle types for the unit transportation provided that it is protected against mechanical
or weather damage.
Avoid any mechanical shocks and strokes during handling operations.
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WARRANTY CLAIMS ARE ACCEPTED WITH THIS USER’S MANUAL AND FILLED
CONNECTION CERTIFICATE ONLY.
The MANUFACTURER is not responsible for any mechanical or physical
damages resulting from the manual requirements violence, the unit misuse or gross
mechanical eect.
Full the requirements set in the user’s manual to ensure proper functioning of the
unit.
MANUFACTURER’S WARRANTY
Manufacturer hereby guarantees normal performance of the unit during two years from the date of
retail sale provided compliance with transport, storage, mounting and operation regulations.
In case of no conrmation of the sales date the warranty period is calculated from the manufacturing
date.
In case of failures in the unit operation during the warranty period the manufacturer will accept
reclamations and complaints from the owner of the device only after receiving technically sound act
with detailed description of the failure.
Unit damage as a result of unauthorized tampering with the circuit diagram is not a warranty case.
For warranty and post-warranty services of the unit please contact the product manufacturer.
In case of warranty claim please submit the present user’s manual with the seller’s stamp, lled
connection certicate and warranty card.
Warranty and post-warranty services are fullled at the manufacturing facility.
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PA W
We hereby declare that the product complies with the essential protection requirements of
Electromagnetic Council Directive 2004/108/EC, 89/336/EEC and Low Voltage Directive 2006/95/
EC, 73/23/EEC and CE-marking Directive 93/68/EEC on the approximation of the laws of the Member
States relating to electromagnetic compatibility. This certicate is issued following test carried out on
samples of the product referred to above.
Acceptance Inspector’s Stamp Date of manufacture ___________________________
Sold by
Name of trade company ______________________________________________________________
___________________________________________________________________________________
Date of sale _____________________________
Supply unit PA W has been duly certied as serviceable.
ACCEPTANCE CERTIFICATE
ELECTRICAL CONNECTION CERTIFICATE
WARRANTY CARD
Company:
Name
Date Signature
This is to certify that the air supply unit PA W has been connected to power mains pursuant to the
requirements stated in the present user’s manual by a qualied technician:
V43EN-03.indd 20 11.09.2015 8:34:22