BLAUBERG WKH 125-2 Duct Water Heater User Manual

WKH 125-2 Duct Water Heater
User Manual

Introduction

The present operation manual is combined with technical specification, operating instruction, certificate, information on installation. Device: Water duct heater WKH (further in the text “WKH”)

Function

Device WKH with water as heat carrier and round or rectangular connection to the air duct is designed for heating of air in the air-conditioning, ventilation and hot-air heating systems and in drying units and warm air curtains.
Delivery set contains:

• device WKH – 1 piece
• operation manual – 1 piece
• packing box – 1 piece

Technical specifications

WKH devices are used in enclosed spaces at ambient air temperatures from +1 °C to +50 °C. Maximum temperature:
100 °C, maximum pressure at 100 °C : 1.6 MPa (16 bar).
WKHs are designed for exploitation in area with moderate and cold climate (UHL 3 by GOST 15150-69).

Design and principle of operation

Design of WKH with rectangular and round connecting to air duct (Picture 1 and Picture 2) consists of the case (1) and the heating element (3) built in the case. The case consists of the wall (6 for round ducts), two protective casings (2) manufactured from high-quality galvanized steel.
Heating block is a package of two or four rows of copper tubes with aluminum ribs set on them, and copper unions.
The tubes are joined in groups the ends of which soldered in manifolds made from copper pipes through which the heat carrier goes in and out.
For connecting to the external system the manifolds have special unions on the butt end of the heating block providing threaded connection. The output manifold has a nipple with thread (G1/4) with a plug (place Л on Picture 1 and Picture 2), instead of which an immersion sensor may be placed for measuring the temperature or for protection from freezing. There is also a air-relief nipple with thread G1/2 (4), a water-drain nipple with thread G1/2 (5) from the butt end of WKH.
The air is heated during its passage through the heat exchanger in the process of interaction with copper tubes and aluminum plates. All heaters are tested for leaktightness at maximum working pressure of 1.6 MPa and water temperature of 100 °C.
Connection dimensions correspond to connection dimensions of elements of duct ventilation (duct fans, electric duct heaters, duct noise mufflers, etc.)
For WKH a surface mount sensor is possible to apply instead of immersion sensor.
Water heaters are supplied without temperature sensors and frost protection. To avoid emergency situations during exploitation of WKH, please provide the water flow  excluding a possibility of freezing of WKH.
Basic parameters and dimensions
Basic dimensions of WKH with round and rectangular connecting to the air duct must correspond to the values listed in tables 1, 2 and on Picture 1 and Picture 2. Basic parameters and technical specifications are listed in tables 3, 4. Table 1
Basic dimensions of WKH with rectangular connecting to the air duct

Type

| A| B| C| D| L| H| W| N| M| T| K| Number of rows of pipes|

Weight, kg

---|---|---|---|---|---|---|---|---|---|---|---|---|---

WKH 40×20-2

| 400| 200| 420| 220| 565| 240| 200| 43| 43| 150| G 3/4”| 2| 7,6
WKH 40×20-4| 400| 200| 420| 220| 565| 240| 200| 38| 65| 150| G 3/4”| 4|

8,1

WKH 50×25-2

| 500| 250| 520| 270| 665| 290| 200| 43| 43| 200| G 3/4”| 2| 15,8
WKH 50×25-4| 500| 250| 520| 270| 665| 290| 200| 38| 65| 200| G 3/4”| 4|

16,3

WKH 50×30-2

| 500| 300| 520| 320| 665| 340| 200| 43| 43| 250| G 1”| 2| 11,5
WKH 50×30-4| 500| 300| 520| 320| 665| 340| 200| 38| 65| 250| G 1”| 4|

12,0

WKH 60×30-2

| 600| 300| 620| 320| 765| 340| 200| 43| 43| 250| G 1”| 2| 21,8
WKH 60×30-4| 600| 300| 620| 320| 765| 340| 200| 38| 65| 250| G 1”| 4|

22,3

WKH 60×35-2

| 600| 350| 620| 370| 765| 390| 200| 43| 43| 300| G 1”| 2| 22,4
WKH 60×35-4| 600| 350| 620| 370| 765| 390| 200| 38| 65| 300| G 1”| 4|

22,9

WKH 70×40-2

| 700| 400| 720| 420| 865| 440| 200| 36| 47| 350| G 1”| 2| 27,8
WKH 70×40-3| 700| 400| 720| 420| 865| 440| 200| 42| 58| 350| G 1”| 3|

28,4

WKH 80×50-2

| 800| 500| 820| 520| 965| 540| 200| 36| 47| 450| G 1”| 2| 36,5
WKH 80×50-3| 800| 500| 920| 520| 965| 540| 200| 42| 58| 450| G 1”| 3|

37,2

WKH 90×50-2

| 900| 500| 920| 520| 1065| 540| 200| 36| 47| 450| G 1”| 2| 40,4
WKH 90×50-3| 900| 500| 920| 520| 1065| 540| 200| 42| 58| 450| G 1”| 3|

41,2

WKH 100×50-2

| 1000| 500| 1020| 520| 1165| 540| 200| 36| 47| 450| G 1”| 2| 44,3
WKH 100×50-3| 1000| 500| 1020| 520| 1165| 540| 200| 42| 58| 450| G 1”| 3|

45,2

Table 2
Basic dimensions of WKH with round connecting to the air duct

Type

| D| L| H| W| F| A| B| C| K| Number of rows of pipes|

Weight, kg

---|---|---|---|---|---|---|---|---|---|---|---

WKH 100-2

| 99| 350| 230| 300| 220| 32| 43| 150| G 3/4”| 2| 4,5
WKH 100-4| 99| 350| 230| 300| 220| 28| 65| 150| G 3/4”| 4|

5,2

WKH 125-2

| 124| 350| 230| 300| 220| 32| 43| 150| G 3/4”| 2| 4,5
WKH 125-4| 124| 350| 230| 300| 220| 28| 65| 150| G 3/4”| 4|

5,2

WKH 150-2

| 149| 400| 280| 300| 220| 32| 43| 200| G 3/4”| 2| 7,5
WKH 150-4| 149| 400| 280| 300| 220| 28| 65| 200| G 3/4”| 4|

8,2

WKH 160-2

| 159| 400| 280| 300| 220| 32| 43| 200| G 3/4”| 2| 7,5
WKH 160-4| 159| 400| 280| 300| 220| 28| 65| 200| G 3/4”| 4|

8,2

WKH 200-2

| 198| 400| 280| 300| 220| 32| 43| 200| G 3/4”| 2| 7,5
WKH 200-4| 198| 400| 280| 300| 220| 28| 65| 200| G 3/4”| 4|

8,2

WKH 250-2

| 248| 470| 350| 350| 270| 32| 43| 270| G 1”| 2| 10,3
WKH 250-4| 248| 470| 350| 350| 270| 28| 65| 270| G 1”| 4|

10,8

WKH 315-2

| 313| 550| 430| 450| 370| 57| 43| 350| G 1”| 2| 11,5
WKH 315-4| 313| 550| 430| 450| 370| 53| 65| 350| G 1”| 4|

12,2

Table 3
Basic technical specifications of WKH with rectangular connecting to the air duct for two-row, three-row and four-row execution.

Type

| Air flow, m3/h| Differential pressure, Pa| Inlet air, °С|

Water temperature, °С (inlet/outlet) 80/60

---|---|---|---|---
Inlet air, °С| Capacity of heater, kW| Water consump- tion, l/s|

Water pressure drop, KPa

WKH 40×20-2| 1100| 62| -5| 19| 10| 0,12| 2
0| 23| 9,2| 0,12| 2
5| 26| 8,5| 0,11| 2
10| 29| 8,0| 0,10| 1
WKH 400200-4| 1100| 125| -5| 35| 17| 0,21| 1
0| 37| 15| 0,19| 1
5| 39| 14| 0,17| 1
10| 4,5| 12| 0,15| 1
WKH 50×25-2| 1850| 62| -5| 20,5| 17| 0,20| 6,5
0| 24| 15,3| 0,18| 6,5
5| 27,5| 14,5| 0,17| 4,5
10| 31| 13| 0,15| 3,5
WKH 5025-4| 1850| 125| -5| 38| 28| 0,34| 6,1
0| 40| 26| 0,32| 5,1
5| 42,6| 24| 0,30| 5
10| 42,5| 22,1| 0,27| 4
WKH 50×30-2| 2350| 62| -5| 19| 20| 0,24| 3
0| 21| 18| 0,22| 2
5| 25| 16| 0,21| 2
10| 28| 15| 0,19| 2
WKH 50×30-4| 2350| 125| -5| 37| 34| 0,42| 5
0| 39| 31| 0,40| 4
5| 41| 29| 0,36| 4
10| 43| 26| 0,32| 3
WKH 60×30-2| 3000| 62| -5| 18| 24| 0,3| 4
0| 20| 22| 0,28| 3
5| 24| 20| 0,25| 3
10| 27| 18| 0,23| 3
WKH 60×30-4| 3000| 125| -5| 37| 42| 0,51| 9
0| 41| 38| 0,47| 8
5| 42| 35| 0,43| 7
10| 45| 32| 0,4| 6
WKH 60×35-2| 3400| 62| -5| 19| 28| 0,35| 4
0| 20,5| 26| 0,32| 4
5| 24| 24| 0,29| 3
10| 27| 22| 0,27| 3
WKH 60×35-4| 3400| 125| -5| 37| 49| 0,6| 10
0| 39| 45| 0,55| 8
5| 41| 41| 0,51| 7
10| 43| 37| 0,46| 6
WKH 70×40-2| 4600| 113| -5| 21,8| 45,3| 0,56| 4,1
0| 25,2| 41,8| 0,5| 3,6
5| 28,5| 38,2| 0,47| 3
10| 31,9| 34,6| 0,43| 2,6
WKH 70×40-3| 4600| 170| -5| 33| 64,2| 0,78| 10,9
0| 35,8| 59,3| 0,72| 9,4
5| 38,4| 54,4| 0,67| 8,1
10| 41| 49,6| 0,62| 6,8
WKH 80×50-2| 6800| 128| -5| 20,5| 63,7| 0,78| 4,4
0| 23,9| 58,7| 0,72| 3,9
5| 27,3| 53,6| 0,67| 3,2
10| 30,7| 48,5| 0,62| 2,6
WKH 80×50-3| 6800| 193| -5| 29,7| 86,7| 1,05| 5,6
0| 32,5| 79,8| 0,97| 4,8
5| 35,3| 72,9| 0,89| 4
10| 38,2| 65,8| 0,81| 3,2
WKH 90×50-2| 7300| 120| -5| 21,5| 70,2| 0,86| 5,7
0| 24,8| 64,5| 0,81| 5,1
5| 28,2| 59,8| 0,73| 4,2
10| 32,2| 54,2| 0,67| 3,7
WKH 90×50-3| 7300| 180| -5| 30,5| 96,5| 1,18| 7,2
0| 33,7| 88,9| 1,07| 6,1
5| 36,4| 81,2| 0,99| 5,2
10| 39,5| 73,5| 0,85| 4,3
WKH 100×50-2| 7800| 111| -5| 22,4| 78,4| 0,94| 7,1
0| 25,7| 72,3| 0,89| 6,1
5| 29| 66,2| 0,8| 5,2
10| 33,6| 60,1| 0,71| 4,8
WKH 100×50-3| 7800| 167| -5| 32| 106,1| 1,3| 8,7
0| 34,8| 97,8| 1,19| 7,5
5| 37,4| 89,5| 1,1| 6,4
10| 40,8| 81,3| 0,9| 5,3

Table 4
Basic technical specifications of NKV with round connecting to the air duct

Type| Air flow, m3/h| Differential pressure, Pa|

Inlet air, °C

|

Water temperature, °C (inlet/outlet) 80/60

---|---|---|---|---

Inlet air, °C

| Capacity of heater, kW| Water consump- tion, l/s|

Water pressure drop, KPa

W K H 100-2| 150| 20| -5| 21,6| 1,6| 0,02| 1
0| 25,9| 1,4| 0,02| 1
5| 30,2| 1,2| 0,01| 0,5
10| 34| 1,0| 0,01| 0,5
W K H 100-4| 150| 31| -5| 36| 2,3| 0,03| 2
0| 39| 2,03| 0,02| 2
5| 42| 1,75| 0,02| 2
10| 45| 1,5| 0,02| 1
W K H 125-2| 215| 15| -5| 18,4| 2| 0,03| 1
0| 22,8| 1,8| 0,02| 1
5| 27,3| 1,5| 0,02| 1
10| 31,8| 1,2| 0,02| 1
W K H 125-4| 215| 40| -5| 43| 4,8| 0,06| 10
0| 46| 4,3| 0,06| 9
5| 48| 3,8| 0,05| 8
10| 51| 3,4| 0,05| 6
W K H 150-2| 320| 28| -5| 24| 4,1| 0,05| 8
0| 26| 3,8| 0,05| 6
5| 30,5| 3,6| 0,04| 5
10| 35| 3,0| 0,04| 4
W K H 150-4| 320| 41| -5| 36| 6,05| 0,06| 15
0| 40| 5,4| 0,06| 14
5| 42| 5,0| 0,06| 13
10| 46| 4,3| 0,05| 11
W K H 160-2| 400| 31| -5| 26,1| 4,4| 0,05| 9
0| 30,8| 4,0| 0,05| 7
5| 35,3| 3,5| 0,04| 6
10| 39| 3,0| 0,04| 4
W K H 160-4| 400| 42| -5| 38| 6,5| 0,07| 16
0| 42| 5,6| 0,07| 15
5| 45,5| 5,2| 0,06| 14
10| 48,3| 4,5| 0,06| 12
W K H 200-2| 600| 23| -5| 20,6| 5,9| 0,07| 13
0| 26,0| 5,2| 0,06| 10
5| 31,0| 4,6| 0,06| 8
10| 35,8| 4,0| 0,05| 7
W K H 200-4| 600| 44| -5| 36,8| 11| 0,13| 13
0| 40,5| 9,8| 0,12| 11
5| 43,6| 8,7| 0,11| 9
10| 47,2| 7,8| 0,09| 7
W K H 250-2| 900| 25| -5| 22,3| 9,9| 0,12| 7
0| 27,1| 8,9| 0,11| 6
5| 31,9| 7,7| 0,09| 5
10| 36,6| 6,7| 0,08| 4
W K H 250-4| 900| 39| -5| 40,4| 16| 0,2| 12
0| 43| 14| 0,17| 9
5| 47| 12| 0,15| 8
10| 49| 10,5| 0,13| 6
W K H 315-2| 1420| 27| -5| 27| 18| 0,22| 9
0| 32| 16,3| 0,2| 8
5| 36,9| 14,5| 0,18| 6
10| 41,2| 12,9| 0,16| 5
W K H 315-4| 1420| 37| -5| 39,6| 24| 0,3| 15
0| 43,2| 21,9| 0,27| 12
5| 46,5| 19| 0,24| 10
10| 49,8| 16,8| 0,2| 8

Safety requirements

Requirements of the present operation manual, Rules of safe operation of consumer’s electric devices, current building norms and rules, Rules of fire safety in Ukraine shall be observed during installation and operation of WKH. Before starting the NKV please make sure there are no visible damage of the device, no foreign objects in the duct or leaks in the joins.
Warning!
Do not use a WKH for work with explosive dust air mixture.
Warning!
Damage of copper pipes (deformation and breakup) may occur in the heat exchanger at freezing of water. As a result, leakage of water from the heat exchanger circuit will occur and the heater will be out of order.
Exploitation of the device beyond the temperature range specified in the operation manual and in rooms with the air containing aggressive admixtures is forbidden.
Installation
Installed directly in the air ducts in the positions that make possible to join connecting pipes in horizontally, from the side of a WKH or vertically from above.
Connection of pipes vertically from below is impermissible. Water duct heater may be of right or left executions depending on the customer’s request. When water is used as the heat carrier, the heaters shall be used in rooms where temperature is above 0 °C.
The heater shall be installed in the air ducts of the similar diameter (size). Operating position of the heater shall ensure free access for service maintenance, for joining of pipes with heat carrier.
It is recommended to install the air filter in front of a WKH in the direction of air flow.
A water heater may be installed in front of or behind the fan.
If a NKV is placed in front of a fan, its capacity must be adjusted so that the air temperature inside The fan does not exceed the maximum permissible value.

Rules for storage and transportation

Keep NKV in the original package in a closed room at temperature from 10 °C to +40 °C and relative humidity not exceeding 80 % (at temperature of 25 °C).
Presence in the air of steam and admixtures causing corrosion and failure of isolation and leaktightness is not admitted. Transportation by any mode of transport is possible on condition of protection from atmospheric precipitation and mechanical damage.
Loading and unloading must be performed avoiding.
Any bumps and pushes.
MANUFACTURER’S GUARANTEES
Manufacturer Closed joint-stock company “Blauberg” guarantees that WKH complies with technical specification subject to observing the installation and operation, storage and transportation rules.
Guaranty period of exploitation is 24 months from the date of sale through the retail network. In case of absence of a note about the date of sale, the guarantee period shall be calculated from the date of manufacture.
The guarantee becomes invalid in case a WKH has damages because of the use of the device with the purpose other than it was designed for and because of rough mechanical interference with the device.
GUARANTEE CARD

www.blaubergventilatoren.de
B37EN-04

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