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WHI freshaqua 22 #4

Weishaupt WHI freshaqua 22 #1, WHI freshaqua 22 #3, WHI freshaqua 22 #2, WHI freshaqua 22 #4 Mounting And Operating Instructions

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Mounting and operating instructions
Fresh water station WHI freshaqua 22
83514302 ▪ 1/2017-08
Installation and operating instructions Fresh water station WHI freshaqua 22
83514302 ▪ 1/2017-08 ▪ Ext. PAW
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1
Information for the user ........................................................................................ 4
1.1 User guidance ............................................................................................... 4
1.1.1 Symbols ........................................................................................................ 4
1.1.2 Target group ................................................................................................. 4
1.2 Warranty and liability..................................................................................... 4
2 Safety .................................................................................................................. 5
2.1 Designated use ............................................................................................. 5
2.2 Safety instructions ........................................................................................ 5
2.3 Safety measures ........................................................................................... 6
2.4 Electrical connection ..................................................................................... 6
2.5 Structural modifications ................................................................................. 6
2.6 Disposal ........................................................................................................ 6
3 Product description .............................................................................................. 7
3.1 Function ........................................................................................................ 8
3.2 Serial number ............................................................................................... 8
3.3 Technical Data Fresh Water Station ............................................................. 9
3.4 Technical Data Pumps ................................................................................ 11
3.5 PWM input signal (solar profile) .................................................................. 11
3.6 Hydraulilc performance data ....................................................................... 12
4 Dimensioning and Planning ............................................................................... 13
4.1 Dimensioning the storage ........................................................................... 15
4.2 Circulation mode ......................................................................................... 16
5 Installation ......................................................................................................... 17
5.1 Assembly .................................................................................................... 18
5.2 Connection .................................................................................................. 19
5.3 Controller connection .................................................................................. 19
6 Operation ........................................................................................................... 20
7 Commissioning .................................................................................................. 20
7.1 Filling the primary circuit ............................................................................. 21
7.2 Commissioning the controller ...................................................................... 22
7.3 Maximum tapped flow rate .......................................................................... 23
7.4 Setting the temperature .............................................................................. 25
8 Maintenance ...................................................................................................... 26
9 Spare parts ........................................................................................................ 27
9.1 Spare parts list WHI freshaqua 22 #1 (40900015012) and
WHI freshaqua 22 #3 (40900019012) ......................................................... 27
9.2 Spare parts list WHI freshaqua 22 #2 (40900015022) and
WHI freshaqua 22 #4 (40900019022) ......................................................... 29
10Commissioning log ............................................................................................ 31
Installation and operating instructions Fresh water station WHI freshaqua 22
1 Information for the user
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1 Information for the user
These installation and operation instructions form part of the device and must be stored
at the place of use.
Carefully read these instructions before installation and commissioning.
1.1 User guidance
1.1.1 Symbols
DANGER
Immediate danger of high risk. Non-observance will result in serious injuries or death.
WARNING
Danger of medium risk. Non-observance may result in environmental damage, serious injuries or death.
CAUTION
Danger of low risk. Non-observance may result in property damage or slight to moderate injuries.
NOTICE Important information.
1.1.2 Target group
This installation and operation manual is addressed to operators and qualified skilled
personnel. It must be observed by anyone working on the machine.
Work on the machine may only be performed by persons that have received the required training or instruction.
Persons with restricted physical, sensory or mental abilities may work on the machine if supervised or instructed by an authorised person.
Children may not play with the machine.
1.2 Warranty and liability
Warranty and liability claims for personal and material damage are void if they are due to
one or several of the following causes: Use of the machine contrary to its designated use, Non-observance of the installation and operation instructions, Operation of the machine with non-operational safety or protective devices, Continued use despite the presence of a defect, Improper assembly, commissioning, operation and maintenance of the machine, Unauthorised modification of the machine, Installation of additional components that were not tested together with the machine, Repairs carried out incorrectly, Failure to use Weishaupt original parts Defects in the supply lines, Force majeure.
Installation and operating instructions Fresh water station WHI freshaqua 22
2 Safety
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2 Safety
2.1 Designated use
The fresh water station must only be installed in heating systems between the buffer tank
and the domestic water circuit. Due to its construction, it must only be installed and operated in a vertical position. The technical limit values specified in this instruction must be considered.
Use only original accessories in connection with the fresh water station.
Using the station contrary to its designated use will invalidate all liability claims.
The wrapping materials are made of recyclable materials that can be recycled by standard recycling operations.
2.2 Safety instructions
The following must be observed during installation and commissioning:
Relevant local and national regulations Accident prevention regulations of the employers' liability insurance association Instructions and safety instructions mentioned in these instructions
WARNING
Risk of scalding from hot water!
Due to the third party circulation, up to 90 °C hot water may run out at the tapping point in the primary circuit.
No external pump may be installed between the fresh
water station and the buffer tank.
The fresh water station must not be connected to a
heating circuit distributor.
CAUTION
Risk of burns!
The valves and fittings and the pumps can become heated up to more than 95 °C during operation.
The insulation must remain closed during operation.
Installation and operating instructions Fresh water station WHI freshaqua 22
2 Safety
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NOTICE Material damage due to mineral oils!
Mineral oil products cause permanent damage in the material, resulting in its sealing characteristics getting lost. We cannot be held liable for damage caused by seals damaged in this way, and nor will we give warranty replacement for such parts.
It is imperative to prevent the EPDM from making contact
with substances containing mineral oils.
Use a silicone- or polyalkylene-based lubricant free of
mineral oil such as Unisilikon L250L and Syntheso Glep 1 from Klüber or a silicone spray.
NOTICE Malfunction!
The fresh water station must be integrated in the
potential equalisation of the electrical installation. If this is not ensured by the connected pipework than establish a correct potential equalisation connection to the main potential connection.
2.3 Safety measures
Immediately eliminate safety-relevant defects and replace safety-relevant components
when they have reached the end of their service life due to their construction.
2.4 Electrical connection
When performing any work on live parts:
Observe the accident prevention regulations BGV A3 and local regulations, Use tools according to EN 60900.
2.5 Structural modifications
Conversion measures are only allowed after prior approval in writing by the
Max Weishaupt GmbH. Additional components may only be installed if they were tested together with the machine. Use only Weishaupt original parts.
2.6 Disposal
Dispose of the materials used properly and in an environmentally compatible manner.
In doing so, observe local regulations.
Installation and operating instructions Fresh water station WHI freshaqua 22
3 Product description
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3 Product description
The fresh water station is a pre-assembled fitting group tested for leaks for transferring
heat between the buffer tank and the domestic water circuit. It contains a preset controller as well as important fittings for operating the system:
Ball valves in the primary circuit Piston valves in the secondary circuit Safety valve in the secondary circuit Pre-assembled controller Temperature sensor on the cold water supply Temperature sensor on the heating supply Flow meter on the warm domestic water outlet Lockable primary pump Fill and drain valve for venting the heat exchanger and the pump
Connections
1 Secondary side: hot water outlet
2 Primary side: supply from buffer tank
3 Primary side: return to buffer tank
4 Secondary side: cold water inlet
Equipment
A Piston valve (warm water outlet)
B Fill and drain valve
C Safety valve, 10 bars
(Only for protection of the station. Does not replace the safety valve that must be installed on-site.)
D Temperature sensor PT1000, rapid
E Primary pump
F Ball valve
G Ball valve with check valve
H Analogue flow rate temperature sensor VFS 2-40 l/min
J Heat exchanger
K Temperature sensor PT1000, rapid
L Piston valve (cold water inlet)
Installation and operating instructions Fresh water station WHI freshaqua 22
3 Product description
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3.1 Function
The fresh water stations WHI freshaqua are used for the comfortable and hygienic
heating of domestic water according to the continuous flow heater principle. Other than in conventional domestic water storage tanks, the foodstuff water is not used for energy storage and stored as hot water for hours or days. It is only heated when required using a high-performance plate heat exchanger. The energy for heating the domestic water comes from a buffer tank that can be heated by different systems - by solar systems as well as by solid fuel boilers, oil / gas boilers, heat pumps or other systems.
The WHI freshaqua modules are well suited for use in combination with a thermal solar system. The very good cooling of the heating water in the highly effective plate heat exchangers leads to an increased efficiency of the solar circuit as the average temperature of the solar circuit can be reduced due to the cold return.
In the event of great tapping differences, the WHI freshaqua fresh water stations always have to guarantee a constant outlet temperature at the hot water tap. The speed of the highly efficient EC pumps of the latest generation is controlled by a high-performance closed-loop control always allowing the heating flow rate to be optimal­ly set to the current tap capacity.
The closed-loop control receives the necessary information for adjusting the system from a flow rate sensor and extremely fast temperature sensors that detect the smallest temperature deviations immediately.
The WHI freshaqua can also be equipped with a highly efficient EC circulation pump as an option. The closed-loop control can operate the pump in different circulation modes; always adapted to the current system and requirements of the customer.
During commissioning, the circulation return temperature can be set individually on the circulation system so that the recordable and traceable DVGW (551) requirements for a maximum cooling of the circulation by 5 K can be fulfilled.
Thus, the WHI freshaqua offer perfect comfort, optimum hygiene and a future-orientated energy saving operation.
3.2 Serial number
The serial number on the type plate clearly identifies each product. The serial number is
necessary for the Weishaupt after-sales service. In case of a complaint, please send us the serial number of the product concerned and the completed commissioning report (see page 31). The serial number is placed in the upper right corner of the support sheet of the station.
Serial number:
Installation and operating instructions Fresh water station WHI freshaqua 22
3 Product description
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3.3 Technical Data Fresh Water Station
Dimensions WHI freshaqua 22 #1 and #3 WHI freshaqua 22 #2 and #4
Total height 645 mm 1116 mm
Total width 355 mm 446 mm
Total depth 249 mm
Centre distance, top 86 mm
Centre distance, bottom 47 mm
Primary pipe connection (storage tank circuit)
G ¾" female thread
Secondary pipe connection (WHI freshaqua)
G ¾" male thread, flat sealing
Safety valve outlet G ¾" female thread
Operating data
Max. admissible pressure primary: 6 bars, secondary: 10 bars
Min. flow rate 2 l/min
Operating temperature 2 – 95°C
Max. power Q
max
80 kW at Flow
prim.
75° / DHW
sec.
60° / DCW
sec.
10°
Flow rate at Q
max
primary: 1400 l/h, secondary: 22 l/min
Operating temperature sensors -25 °C to +120 °C
Equipment
Safety valve secondary: 10 bars, suitable for domestic water
Primary pump High-efficiency pump with PWM control, 3-70 W
Secondary pump —
High-efficiency pump
with PWM control, 3-70 W
Heat exchanger 30 plates
Flow rate sensor secondary: 1 x VFS, Measuring range: 2-40 l/min
Temperature sensor primary / secondary: 1 x PT1000 each, rapid
Check valve (in the ball valve) primary: 1 x 200 mm wc, can be opened
Installation and operating instructions Fresh water station WHI freshaqua 22
3 Product description
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Material
Valves and fittings Brass
Seals: o-ring EPDM
Flat sealing AFM 34, free of asbestos
Check valve Hostaform
Pipes 1.4401 (AISI 316)
Insulation EPP, = 0.041 W/(m K), fire class B2
Heat exchanger with copper soldering (WHI freshaqua 22 #1 and #2)
Plates + connecting pieces: 1.4401 (AISI 316)
Solder: 99.99% pure copper
Heat exchanger with nickel soldering (WHI freshaqua 22 #3 and #4)
Plates + connecting pieces: 1.4401 (AISI 316)
Solder: 99.99% nickel
Admissible medium (WHI freshaqua 22 #1 and #2)
primary: heating water according to VDI 2035 / Ö-Norm H 5195-1
secondary: domestic water with a max. chloride content: ≤ 80 ppm
Admissible medium (WHI freshaqua 22 #3 and #4)
primary: heating water according to VDI 2035 / Ö-Norm H 5195-1
secondary: domestic water with a max. chloride content: ≤ 300 ppm
Certification SVGW (1308-6180)
ACS (15 ACC NY 015)
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