Vents PA W Series Montageanleitung

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

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

PA 01

PA 02

PA 03

PA 04

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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