German pool CRH9 User manual

Instantaneous Water Heater
即熱式電熱水器即热式电热水器
CRH9
使用說明書
WH-CRH-M-10(2)
Printed in Germany
在使用之前請詳細閱讀「使用說明書」及「保用條例」
，並妥為保存。
在使用之前請詳細閱讀 「使用說明書」及「保用條例」
，並妥為保存。
Please read these instructions and warranty information carefully
before use and keep them handy for future reference.
WH-CRH-M-11(3)

1. Overview
1
6
7
2
3
4
5
When ordering spare parts, please always specify the appliance model, nominal rating and serial number!
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
Pos. Description
5Differential pressure switch
6 Cable seal
7Pilot lamp
not shown: set of small spareparts
Layout of appliance
2
CRH9

CRH9
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
Warranty Terms and Conditions ......................................................................................................................................38
Customer Service Center .................................................................................................................................................39
3. Technical specifications
Type CRH9
Capacity 0.2 litre
Pressure-type, rating pressure 6bar
Heating system Tubular heater
Nominal rating 8.0 kW ~ 9.6 kW
Rated voltage (50/60 Hz) 220 – 240 V
Rated current at 220V 36.4A
Min. required conductor cross-section 3 × 6.0mm2
Factory preset flow reducer 5.0 l/min
Increase of temperature ∆t at present flow 23K
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) 2.2kg / 33 × 21 × 9cm
Protection class and type of protection to VDE 1 / IP25
Safety mark see type plate
3
Operating Instructions:
Please read these instructions carefully before using the appliance!
中文使用說明書從第 14 頁開始 – Traditional Chinese manual starts on page 14.
中文使用說明書從第 25頁開始 – Simplified Chinese manual starts on page 25.

CRH9
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.
4

CRH9
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 con-
nected 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 dur-
ing 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 depends 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 between 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 tem-
perature.
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.
1Disconnect appliance from the mains by removing the fuses.
2Next, 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).
3Only 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.
4. Operation instructions
5

6
CRH9
4. Operation instructions
II
I
8 a
8 c
8 b
Cleaning the fine filter (flush-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.
1. Disconnect the instantaneous water heater by means of
the house fuses and close the shut-off valve (8 a) in the
cold water connection piece (position II) or shut-off the
mains supply.
2. Unscrew the screw plug (8 b) from the cold water connec-
tion piece and take out the strainer (8 c).
Attention: Residual water comes out!
3. The strainer can be cleaned or replaced.
4. After fixtur of the strainer tighten the screw plug.
5. Slowly open the shut-off valve in the cold water connec-
tion piece (positionI).
6. Vent the unit by carefully opening and closing the af-
filiated warm water tap valve several times until air no
longer emerges from the pipe.
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.
1. Disconnect the instantaneous water heater by means of
the house fuses and shut-off the main water supply.
2. Unscrew the cold water inlet connection of the unit and
take out the strainer (8d) of the connection piece.
Attention: Residual water comes out!
3. The strainer can be cleaned or replaced.
4. After fixture of the strainer remount the water connection
of the unit.
5. Carefully open the main water supply.
6. Vent the unit by carefully opening and closing the af-
filiated warm water tap valve several times until air no
longer emerges from the pipe.
8 d

7
CRH9
5. Customer service
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.
If you experience a malfunction, please try to rectify the fault yourself 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
Heating element or electronics faulty Reset fuse, water remains cold contact
customer service
Safety thermal cut-out tripped Reset. In case of repeated trips contact
customer service
The pilot lamp „Pressure“ lights,
water remains cold Flow rate too low Increase flow pressure Clean tap fitting or shower head
Water flows lower as expected
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
The hot water is not hot enough
Electronic board Reset fuse
Flow rate is too high (winter?) Reduce the water flow slightly
Heating element defect Contact customer service
Temperature and pressure vary Cold water is being added 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.

CRH9
6. Installation
8
Installing the wall bracket (flush-mounted):
1. Thoroughly rinse the water supply pipes before installation to remove soil-
ing from the pipes.
2. Using a 12 mm hexagon socket screw key, screw the screw-in nipple into
the wall connector.After tightening, the double nipple must protrude by
12mm.
3. Carefully seal the hot water connection pipe with a little P.T.F.E. Tape and
screwed it into the wall connection. Mount the cold water connector piece
including the 1/2“ seal.
4. Hold the unit on the wall and align it so that the water connectors of the
unit fit over the connections of the wall. Mark the drill holes and drill them
using a 6 mm drill.
5. Mount the unit to the wall and connect the water supply of the unit,
together with the 3/8“ seals.
6. Open the water supply line to the unit and slowly open the shut-off valve in
the cold water connection piece (8a) (Pos.I). Check all connections for leaks.
7. Next, open and close the hot water tapping valve several times until no
more air emerges from the line and all air has been eliminated from the
instantaneous water heater.
If you install the instantaneous water heater CRH9 instead of a conventional instantaneous water heater, there is gener-
ally 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.

CRH9
6. Installation
9
Installing the wall bracket (surface-mounted):
1. Thoroughly rinse the water supply pipes before installation to remove soil-
ing from the pipes.
2. Screw the 1/2“ screw in nipple and the 1/2“ seal into the 1/2“ union nuts of
the hot-water connector.
3. The 1/2“ cap of the side outlets of the coldwater connectors must be
removed and screwed onto the open end of the screw-in nipple.
4. Mount the fine filter into the cold water connection piece (8d).
5. The hot-water and cold-water connectors must then be screwed into the
3/8“ union nut of the appliance and delivery pipe, together with the 3/8“
seals.
6. 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.
7. The holes in the housing of the unit required for the pipes must then be
broken out of the housing with the aid of a blunt implement.
8. Open the water supply line to the unit and slowly open the shut-off valve
in the cold water connection piece (drawing 8a on page 6).
Check all connections for leaks.
9. Next, open and close the hot water tapping valve several times until no
more air emerges from the line and all air has been eliminated from the
instantaneous water heater.
8d

10
CRH9
6. Installation
Installation instructions for the authorized technician
• Thestatutoryregulationsoftherespectivecountry,aswellasthoseofthelocalelectricity
and water supply companies.
• Thespecicationsontheratingplateandthetechnicalspecications.
Installation site
• The installation site must be free from frost at all times.
• The appliance complies with protection type IP25 and may be installed in zone 1 acc. IEC
• In order to avoid thermal losses, the distance between the heater and the tapping point
should be as small as possible (< 2 m).
• Best performance is guaranteed at a flow pressure of ≥ 3 bar, avoiding pressures exceeding
6 bar.
• Material of water pipes for tubular heater types: cold water: steel or copper, hot water:
copper
Important notice!
A backflow preventer ( )
is already provided inside
the brass connection of
the hot water outlet.
It must NOT be fitted in
the cold inlet line before
the appliance!

11
CRH9
6. Installation
Installing the appliance:
1. Rinse water supply pipes thoroughly and turn off for instal-
lation.
2. Remove the front cover by unscrewing the locking screw
behind the small lid.
3. Locate and break out the required holes and cable inlets.
Mark the drilling holes with the appliance and drill them
with a 6mm bit.
4. Fit the rubber grommet supplied and insert the connecting
lead. The lead must be secured with the cable clamp when
using a flexible power cord.
5. Screw the appliance into position using the enclosed raw
plugs and screws.
6. Install the appliance as shown in the principal examples
above.The inlet and outlet are marked with arrows.
7. The water connections are designed for surface-mounted
or flush-mounted installation. They must be carefully
sealed with a little P.T.F.E. Tape when screwed into the wall
connections.
8. The front cover must be neatly broken at the designated
points when installed on the wall.

CRH9
6. Installation
12
II
I
8a
9. Turn on the water supply and slowly open the shutoff valve (8a) in the
cold-water connection (position I) if necessary. Check all connections
for leaks.
10. Next, open and close the hot water tap several times until no more air
emerges from the line and all air has been eliminated from the heater.
Closed
flush-mounted
installation

CRH9
6. Installation
13
Electrical connection:
The instantaneous water heater is an appliance of protection class I
and must be connected to the protective earth conductor!
1. Check that the power supply is switched off prior to the electrical connec-
tion!
• Theappliancemustbeconnectedtothesupplybymeansofpermanent
wiring through suitable fuses having a contact separation of at least 3mm
in all poles.
• Thecrosssectionalareaoftheconnectioncablemustbeinaccordance
with the power rating.
• Toprotecttheappliance,afuseelementmustbettedwitha
tripping current commensurate with the nominal current of the appliance.
2. Slit the grommet to match the cable size.The opening in the grommet
should be slightly smaller than the cross-section of the cable in order
to ensure optimum protection against water. Fit the grommet into the
opening. The protection grommet must be used! The appliance must be
earthed!
•Theconnectingterminalcanbetransferredtothebottomoftheappliance
if necessary.
3. Fit the front cover properly. Doublecheck whether the temperature keys
can be operated easily. If not, make sure that the cover is correctly fitted.
Secure the front cover with the fastening screw.
4. Before making the electrical connection, fill the mains and the appliance
with water by carefully opening and closing the hot water tap in order to
vent completely.
5. Explain the user how the instantaneous water heater works and
hand over the operating instructions.
6. Fill in the guarantee registration card and send it to the German Pool
Central Customer Service or use the online registration on our website
www.germanpool.com.

14
CRH9
1
6
7
2
3
4
5
1. 概觀圖
位置 說明
1 黃銅接駁裝置
（帶有插入式回流防止器）
2 溫度監控器
3 發熱線
4 安全熱切斷器 (STB)
5 差壓開關
位置 說明
6 電纜密封
7 指示燈
沒有顯示：
細小的零配件
設備佈局
訂購產品零部件時，請說明產品型號、規格和序列號。

15
CRH9
2. 目錄
1. 概觀圖 .............................................................................................................................................. 14
2. 目錄 .................................................................................................................................................. 15
3. 技術規格 ........................................................................................................................................... 15
4. 操作說明 .................................................................................................................................... 16–18
5. 客戶服務 ........................................................................................................................................... 19
6. 安裝 ........................................................................................................................................... 20–25
保用條款和條件 ......................................................................................................................................38
客戶服務部 ............................................................................................................................................. 39
3. 技術規格
操作說明：使用設備之前，請仔細閱讀以下說明！
訂購產品零部件時，請說明產品型號、規格和序列號。
型號 CRH 9
容量 0.2 升
壓力類型，額定壓力 6 bar
加熱系統 管式加熱器
額定功率 8.0 kW ~ 9.6 kW
額定電壓 (50 / 60 Hz)220 – 240 V
220 V 時的額定電流 36.4 A
所需導體最小橫截面 3 × 6.0 mm2
出廠預設流量減速器 5.0 l/min
當前流量下的溫度增量 ∆t 23 K
進水溫度 20 ℃ 時的熱水溫度 43 ℃
接通流速 2 l/min
冷水溫度 30 ℃
水管接駁 1/2" B.S.P. 明裝或暗裝
淨重和尺寸 (H × W × D)2.2 kg / 33 × 21 × 9 cm
VDE 保護等級和保護類型 1 / IP25
安全標記 請參閱型號銘牌

16
CRH9
4. 操作說明
封閉式出水管熱水器的安全說明：
• 本設備的安裝、初步操作和維護必須只能由經過授權的專業人士進行，他們將負責遵守適用的標準
和安裝規定。我們對由於不遵守這些說明而導致的任何損壞概不負責。
• 除非設備已正確安裝並處於最佳工作狀態，否則請勿使用設備。
• 本設備僅適用於在封閉、無霜的房間內供家庭用途和類似的應用，並且必須僅用於加熱來自幹線供
給的進水。
• 本設備永遠不得暴露在霜凍環境中。
• 本設備必須始終接地。
• 最大水壓不得超過標籤上的值。
• 初次試運行之前和每次設備排空後（例如，由於在管道系統上工作後，如果有霜凍風險或如果進行
維護時），必須根據本手冊中的說明對設備進行正確放氣。
• 任何情況下，請勿在切斷電源與設備的接駁之前拆下前蓋。
• 切勿進行技術改動（不論對設備本身還是電線和水管）。
• 請注意，水溫超過約 43 ℃ 將被視為熱水（對小童而言尤甚），並且可能導致灼熱感。另外，設備
使用一段時間後，配件和水喉可能會非常熱。
• 進水溫度不得超過 30 ℃。
• 如果發生故障，請立即斷開保險絲。如果發生洩漏，請立即切斷冷水供給。只能由客戶服務部門或
經過授權的專業人士進行維修。
• 身體、感知或精神能力有缺陷或無法獲得經驗和/或學習知識的人士（包括小童）必須在負責其安全
的人士監督下或瞭解如何使用本設備後方可使用。小童應在監督下使用本設備以免用本設備玩耍。

17
CRH9
設備說明
本設備為液壓控制、壓力型出水即熱式熱水器，用於加熱一個水喉或彼此相鄰的
兩個水喉（例如，廚房水槽或洗臉盆）的分散出水。
由於採用集成式分區切斷負載電路，此設備可在沒有獨立電源的情況下接駁到電
爐出線盒（如果電爐接駁的是 3/N/PE~380/400 V 電源）。
用途
即熱式熱水器可在水流經過時對其加熱。設備僅在該時間段內耗電。當水流超過最低流速時，加熱電源
會自動接通。“Power（電源）”燈指示加熱系統已經接通。
如果即熱式熱水器與電爐一起接駁，電爐將在使用熱水時關閉。分區切斷負載只可與電機式電爐一起使
用！餘熱指示燈會在使用熱水時關閉！
熱水溫度取決於幹線供水的流速及溫度。通過水喉的開啟程度，可在 40 ℃ 至 60 ℃ 之間調節所需水溫：
水流小 = 水更熱
水流大 = 水更涼
如果熱水器有兩個出水口，則設備水流將在兩個出水口之間分攤。因此，在這種情況下您應該只使用一
個出水口，以保證水流充足，且不會出現溫度變化。
水溫監控器
如果溫度升得太高，水溫監控器將降低電力供應，直至水溫降至允許水準。這種
情況將通過“Overheat（過熱）”燈表示。如果水溫頻繁過熱，則必須修正故障原
因，可能原因包括：沙隔中存在污垢，流速降低過度，或者注入水溫過高。
放氣
為避免設備損壞，初次使用即熱式熱水器之前必須對其進行放氣。每次排空後（例如在管道系統上工作
後，如果有霜凍風險或隨後需要進行維修工作時），再次使用之前必須重新對設備進行放氣。
1. 拆下保險絲，斷開設備與電源的接駁。
2. 接下來，打開和關閉熱水喉閘掣數次，直到沒有氣體從管道排出且所有氣體均已從熱水器中排出（約
1 分鐘）。
3. 然後將電源重新接駁至設備。
如何節約能源以保護環境
如果水管直接沿著與水喉（建議使用出口敞開式水喉）接駁的管道進行安裝，則經由水管流失的熱量會
非常少，並且無需首先抽取大量冷水便可迅速供應熱水。
清潔沙隔
若出現故障，應檢查冷水進水口內的沙隔，並在必要情況下進行清潔。
4. 操作說明

18
CRH9
4. 操作說明
II
I
8a
8c
8b
清潔細濾器（暗裝）
細濾器位於水管接駁 (8) 中，應由專家在設備運行退
化和定期維護時進行檢查和清潔。
1. 通過斷開家庭保險絲的方式斷開即熱式熱水器的接
駁，關閉冷水接駁件（位置 II）中的關閉掣 (8a) 或
關閉幹線供給。
2. 旋松冷水接駁件的螺旋塞 (8b) 並取出沙隔 (8c)。
注意：殘留的水將流出！
3. 沙隔可以清潔或更換。
4. 固定沙隔後，旋緊螺旋塞。
5. 慢慢打開冷水接駁件（位置 I）中的關閉掣。
6. 將設備放氣，方法是小心地打開和關閉相連的熱水
喉閘掣數次，直到不再有氣體從管道中排出。
清潔細濾器（明裝）
細濾器位於水管接駁 (8) 中，應由專家在設備運行退
化和定期維護時進行檢查和清潔。
1. 通過斷開家庭保險絲的方式斷開即熱式熱水器的接
駁，關閉幹線供水。
2. 旋松設備的冷水進水接駁裝置並從接駁件取出沙隔
(8d)。注意：殘留的水將流出！
3. 沙隔可以清潔或更換。
4. 固定沙隔後，請重新組裝設備的水管接駁。
5. 小心地打開幹線供水。
6. 將設備放氣，方法是小心地打開和關閉相連的熱水
喉閘掣數次，直到不再有氣體從管道中排出。
8d

19
CRH9
5. 客戶服務
只能由經過授權的專業人士進行維修！
我們可能會向經過授權的客戶服務公司提供您的姓名和地址，也可能會自己維修熱水器。
如果是後一種情況，請遞交熱水器（自行承擔費用和風險）及問題詳情和銷售發票的副本。
如果您遇到故障，請首先嘗試借助此表格自行修復故障。如果借助此表格無法修復設備的故
障，請聯繫 German Pool，我們將直接為您提供幫助，或幫助您與當地的客戶服務簽約合作夥伴
進行聯繫。
請務必指定設備型號和序列號！
故障 可能的原因 解決方案
LED 不亮，水不熱 電路斷路器已觸發 修復該故障並重定
“Power”（電源）指示燈亮起，
水不熱
發熱線或電子設備故障 重定保險絲，如果水仍然不熱，請聯
繫客戶服務
安全熱切斷器已觸發 復位。如果反復跳閘，請聯繫客戶
服務
“Pressure”（壓力）指示燈亮起，
水不熱 流速過低 增加流量壓力清潔水喉配件或淋浴頭
水流如預期降低速度
取決於熱水器 查看技術規格
出水管配件髒汙或鈣化 清潔水喉配件或淋浴頭
沙隔髒汙或鈣化 清潔或更換沙隔
水喉不合適 使用合適的淋浴頭或通風裝置
熱水不夠熱
電路板 復位保險絲
流速過高（冬季？） 稍微減少水流量
發熱線故障 聯繫客戶服務
溫度和壓力變化 添加了冷水 只提供某一度範圍內的熱水
如果借助此表格無法修復故障，請聯繫您的分銷商或德國寶客戶服務總部。

20
CRH9
6. 安裝
如果您安裝的是即熱式熱水器 CRH 9 而不是傳統的即熱式熱水器，則通常牆壁固定支架不需要鑽孔。
在這種情況下，您只需要如 2 中所述旋緊雙向管接頭並固定掛牆背碼即可。
安裝掛牆背碼（暗裝）：
1. 安裝前，仔細清洗供水管道，以除去管道中的髒汙。
2. 使用 12 mm 的內六角形螺釘扳手，將旋入杬牙旋入牆壁接頭中。
旋緊後，杬牙必須突出 12 mm。
3. 使用少量 P.T.F.E. 仔細密封熱水接駁管。將其用帶子固定並旋入牆
壁接駁裝置中。裝配附帶 1/2" 密封件的冷水接駁件。
4. 握住牆壁上的設備並將其對齊，以便設備的水管接頭裝在牆壁連
接裝置上。標記鑽孔位置並使用 6 mm 鑽嘴來鑽孔。
5. 將設備裝到牆上並接駁設備的水源，以及 3/8" 密封件。
6. 打開設備的供水管道並慢慢打開冷水接駁件 (8a)（位置 I）中的關
閉掣。檢查所有接駁有無洩漏。
7. 接下來，打開和關閉熱水喉閘掣數次，直到沒有氣體從管道排出
並且所有氣體均已從即熱式熱水器中排出。