GermanPool CRH9 User Manual
GB
CRH 9
1. Overview
Layout of appliance
4
3
6
5
7
2
1
Pos. Description
1 Brass connection set with back
flow prevention in hot water outlet
2 Temperature monitor
3 Heating element
4 Safety thermal cut out
When ordering spare parts, please always specify the appliance model, nominal rating and serial number!
Pos. Description
5 Differential pressure switch
6 Cable seal
7 Pilot lamp
not shown: set of small spareparts
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CN
2. Table of contents
1 Overview .......................................................................................................................................................................2
2 Table of contents ...........................................................................................................................................................3
3 Technical specifications .................................................................................................................................................3
4 Operating instructions ...............................................................................................................................................4–6
5 Customer service ..........................................................................................................................................................7
6 Installation ..............................................................................................................................................................8–13
7 Notes ..........................................................................................................................................................................14
8 Warranty Terms and Conditions ..................................................................................................................................15
中文使用說明書從第 14 頁開始 –
Chinese manual starts on page 14.
Operating Instructions:
Please read these instructions carefully before using the appliance!
3. Technical specifications
Type CRH 9
Capacity 0.2 litre
Pressure-type, rating pressure 6 bar
Heating system Tubular heater
Nominal rating
Rated voltage (50 / 60 Hz) 1/N/PE ~ 220..230 V
Rated current at 220 V 36.4 A
Min. required conductor cross-section 3 × 6.0 mm
Factory preset flow reducer 5.0 l/min
Increase of temperature ∆t at present flow 23 K
Hot water temperature at 20 °C inlet temp. 43 °C
Switch-on flow rate 2 l/min
Useful for cold water up to 30 °C
Water connection ½“ B.S.P. surface-mounted or flush-mounted
Net weight and dimensions (H × W × D) 2.2 kg / 33 × 21 × 9 cm
Protection class and type of protection to VDE 1 / IP25
Safety mark see type plate
8.0 kW / 220 V
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4. Operation instructions
Safety instructions for closed-outlet water heaters:
Installation, initial operation and maintenance of this appliance must only be conducted by an authorised profes-•
sional, who will then be responsible for adherence to applicable standards and installation regulations. We assume
no liability for any damages caused by failure to observe these instructions.
Do not use the appliance until it has been correctly installed and unless it is in perfect working order.•
The appliance is only suitable for domestic use and similar applications inside closed, frost-free rooms, and must only •
be used to heat incoming water from mains supply.
The appliance must never be exposed to frost.•
The appliance must be earthed at all times.•
The maximum water pressure must not exceed the value on the label.•
Before commissioning for the first time and each time the appliance is emptied (e.g. due to work on the plumbing •
system, if there is a risk of freezing or in case of maintenance), the appliance must be vented correctly in accordance
with the instructions in this manual.
Do not remove the front cover under any circumstances before switching off the mains electrical supply to the unit.•
Never make technical modifications, either to the appliance itself or the electrical leads and water pipes.•
Pay attention to the fact that water temperatures in excess of approx. 43 °C are perceived as hot, especially by chil-•
dren, and may cause a feeling of burning. Please note that the fittings and taps may be very hot when the appliance
has been in use for some time.
Water inlet temperature must not exceed • 30 °C.
In case of malfunction, disconnect the fuses immediately. In case of leaks, cut off the cold water supply instantly. •
Repairs must only be carried out by the customer service department or an authorised professional.
This appliance must not be used by any person (including children) with limited physical, sensorial or mental abilities •
or failing experience and/or knowledge unless they are supervised by a person responsible for their safety or received
instructions about how to use the appliance.Children should be supervised in order to make sure that they do not
play with the appliance.
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4. Operation instructions
Description of appliance
This appliance is a pressure-type, hydraulically controlled instantaneous water heater for decentral
water heating at one or two taps situated in close proximity to one another. e.g. kitchen sink or
wash basin.
Due to the integrated load-shedding circuit, this appliance can be connected to the outlet box of
an electric cooker if a separate power supply is not available and provided that the cooker is connected to a 3/N/PE~380/400 V supply.
Use
The instantaneous water heater heats the water as it flows through the appliance. The appliance only consumes power during this period. The heating power is switched on automatically in the event of the minimum flow rate being exceeded. The
„Power“ light indicates that the heating system is switched on.
If the instantaneous water heater has been connected in combination with an electric cooker, the cooker will switch off while
hot water is being withdrawn. Load shedding may only be used in conjunction with electromechanical cookers! Residual
heat indicators are off while hot water is withdrawn!
The temperature of the hot water de pends on the rate of flow and the temperature of the main water supply. By opening the
tap more or less you can adjust the desired water temperature between approx. 40 °C and 60 °C:
less flow = more hot
more flow = less hot
If the heater supplies two outlets the water from the unit will be shared be tween the outlets. Therefore you should use only
one outlet at the time to have a sufficient flow and to avoid variation in temperature.
Temperature monitor
If the temperature rises too high, the temperature monitor will reduce the power supply until the
water has cooled back to the permissible level. This is indicated by the „Overheat“ light. If the
water overheats frequently, the cause of the fault must be remedied and may be due, for example,
to dirt in the filter, an excessive reduction in the rate of flow or an impermissibly high inflow temperature.
Venting
To prevent damage to the appliance, the instantaneous water heater must be vented before using it for the first time. Each
time it is emptied (e.g. after work on the plumbing system, if there is a risk of frost or following repair work), the appliance
must be re-vented before it is used again.
1 Disconnect appliance from the mains by removing the fuses.
2 Next, open and close the hot water tap valve several times until no more air emerges from the pipe and all air has been
eliminated from the water heater (approx. 1 minute).
3 Only then should you re-connect the power supply to the unit.
How to save energy in order to protect the environment
The heat lost via the water pipes is very low when installed directly alongside the pipes leading to the taps (open-outlet taps
are recommended) and the hot water is rapidly supplied without drawing a great deal of cold water first.
Cleaning the filter
In case of malfunctions, the filter within the
cold water inlet
should be inspected and cleaned if necessary.
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4. Operation instructions
8 a
Cleaning the fine filter (flush-mounted)
The fine filter is located in the water connection (8) and
II
should be examined by an expert and cleaned if necessary
not only when operation of the appliance deteriorates, but
also in conjunction with regular servicing.
Disconnect the instantaneous water heater by means of 1.
the house fuses and close the shut-off valve (8 a) in the
cold water connection piece (position II) or shut-off the
I
mains supply.
Unscrew the screw plug (8 b) from the cold water connec-2.
tion piece and take out the strainer (8 c).
Attention: Residual water comes out!
The strainer can be cleaned or re placed.3.
After fixtur of the strainer tighten the screw plug. 4.
Slowly open the shut-off valve in the cold water connec-5.
tion piece (position I).
Vent the unit by carefully opening and closing the af-6.
filiated warm water tap valve several times until air no
longer emerges from the pipe.
8 b
8 c
Cleaning the fine filter (surface-mounted)
The fine filter is located in the water connection (8) and
should be examined by an expert and cleaned if necessary
not only when operation of the appliance deteriorates, but
also in conjunction with regular servicing.
Disconnect the instantaneous water heater by means of 1.
the house fuses and shut-off the main water supply.
Unscrew the cold water inlet connection of the unit and 2.
take out the strainer (8 d) of the connection piece.
Attention: Residual water comes out!
The strainer can be cleaned or replaced.3.
After fixture of the strainer remount the water connection 4.
of the unit.
Carefully open the main water supply.5.
Vent the unit by carefully opening and closing the af-6.
8 d
filiated warm water tap valve several times until air no
longer emerges from the pipe.
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5. Customer service
If you experience a malfunction, please try to rectify the fault your self first with the help of this table. If a
fault in your appliance cannot be rectified with the aid of this table, please contact German Pool who will
either assist you directly or put you in touch with a customer service contract partner in your area.
Always specify the appliance model and serial number, please!
Problem Possible Cause Solution
LED remains off, water remains cold Circuit breaker tripped Have the fault rectified and reset
The pilot lamp „Power“ lights,
water remains cold
The pilot lamp „Pressure“ lights,
water remains cold
Water flows lower as expected
The hot water is not hot enough
Temperature and pressure vary Cold water is being added
Heating element or electronics faulty
Safety thermal cut-out tripped
Flow rate too low
Depends on the heater Check technical specifications
Outlet fitting dirty or calcified Clean tap fitting or shower head
Filter dirty or calcified Clean or renew the filter
Tap not suitable Use suitable shower head or aerator
Electronic board Reset fuse
Flow rate is too high (winter?) Reduce the water flow slightly
Heating element defect Contact customer service
Reset fuse, water remains cold contact
customer service
Reset. In case of repeated trips contact
customer service
Increase flow pressure
Clean tap fitting or shower head
Only hot water can be delivered to within
one degree
If you cannot rectify the fault with the aid of this table, please contact your distributer or German Pool
Customer Service – China Headquarters.
Repairs may only be carried out by authorized professionals!
We can either give you the name and address of an authorised customer service company or repair the
heater ourselves. In the latter case, please send in the heater (at your cost and risk) with details of the
problem and a copy of the sales invoice.
CRH 9
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6. Installation
If you install the instantaneous water heater CRH 9 instead of a conventional instantaneous water heater, there is generally no need to drill holes for the wall holder. In this case, you only need to screw in the double nipples as described in 2.
and to secure the wall bracket.
Installing the wall bracket (flush-mounted):
Thoroughly rinse the water supply pipes before installation to remove soil-1.
ing from the pipes.
Using a 12 mm hexagon socket screw key, screw the screw-in nipple into 2.
the wall connector. After tightening, the double nipple must protrude by
12 mm.
Carefully seal the hot water connection pipe with a little P.T.F.E. Tape and 3.
screwed it into the wall connection. Mount the cold water connector piece
including the 1/2“ seal.
Hold the unit on the wall and align it so that the water connectors of the 4.
unit fit over the connections of the wall. Mark the drill holes and drill them
using a 6 mm drill.
Mount the unit to the wall and connect the water supply of the unit, 5.
together with the 3/8“ seals.
Open the water supply line to the unit and slowly open the shut-off valve in 6.
the cold water connection piece (8 a) (Pos.I). Check all connections for leaks.
Next, open and close the hot water tapping valve several times until no 7.
more air emerges from the line and all air has been eliminated from the
instantaneous water heater.
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6. Installation
Installing the wall bracket (surface-mounted):
Thoroughly rinse the water supply pipes before installation to remove soil-1.
ing from the pipes.
Screw the 1/2“ screw in nipple and the 1/2“ seal into the 1/2“ union nuts of 2.
the hot-water connector.
The 1/2“ cap of the side outlets of the coldwater connectors must be 3.
removed and screwed onto the open end of the screw-in nipple.
Mount the fine filter into the cold water connection piece (8 d). 4.
The hot-water and cold-water connectors must then be screwed into the 5.
3/8“ union nut of the appliance and delivery pipe, together with the 3/8“
seals.
Mark the drill holes and drill them using a 6 mm drill. Mount the unit to the 6.
wall and connect the water supply of the unit.
The holes in the housing of the unit required for the pipes must then be 7.
broken out of the housing with the aid of a blunt implement.
Open the water supply line to the unit and slowly open the shut-off valve 8.
in the cold water connection piece (drawing 8a on page 6).
Check all connections for leaks.
Next, open and close the hot water tapping valve several times until no 9.
more air emerges from the line and all air has been eliminated from the
instantaneous water heater.
8d
9
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