OPERATION AND INSTALLATION
UTILISATION ET INSTALLATION
OPERACIÓN E INSTALACIÓN
TANKLESS ELECTRIC WATER HEATER | CHAUFFE-EAU ÉLECTRIQUE SANS ACCUMULATEUR | CALENTADOR DE AGUA INSTANTANEOS SIN TANQUE
»» DHC 3-1
»»DHC 3-2
»»DHC 4-2
»» DHC 4-3
»»DHC 5-2
»»DHC 6-2
»»DHC 8-2
»»DHC 9-3
»»DHC 10-2
84335
The DHC series is tested and certified by WQA against NSF/ANSI 372 for lead free compliance.
CONTENTS | OPERATION
OPERATION
1. General information 2
1.1 Safety information 2
1.2 Other symbols in this document 2
2. Safety 2
2.1 Intended use 3
2.2 General Information 3
2.3 Safety Precautions 3
2.4 Test symbols 3
3. General 3
INSTALLATION
4. Mounting the unit 4
5. Water connections 4
6. Electrical connection 5
7. Putting the water heater into operation 5
8. Normal maintenance 5
9. Technical Data 6
9.1 Wiring diagram 6
9.2 Data table 7
10.Temperature increase above ambient water
temperature 8 11. Troubleshooting 9 12. Spare parts 10
WARRANTY | ENVIRONMENT AND RECYCLING
1.1Safety information
1.1.1 Structure of safety information
KEYWORD Type of risk
Here, possible consequences are listed that may result from not observing the safety information. ffSteps to prevent the risk are listed.
1.1.2 Symbols. type of risk
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Injury |
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Electrocution |
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Burns or scalding |
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1.1.3 Keywords |
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KEYWORD |
Description |
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DANGER |
If this information is not observed, it will result in serious |
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injury or death. |
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WARNING |
If this information is not observed, it can result in serious |
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injury or death. |
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CAUTION |
If this information is not observed, it can lead to medium |
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or minor injury. |
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OPERATION
1.General information
Note
Read these instructions carefully before using the appliance and familiarize yourself with its functions. Keep these instructions safe. Pass on the instructions to a new user if required.
1.2Other symbols in this document
Note
Notes are bordered by horizontal lines above and below the text. General information is identified by the symbol shown on the left.
ffRead these notes carefully.
Symbol
Damage to the appliance and environment
!
Appliance disposal
ffThis symbol indicates that you have to do something. The action you need to take is described step by step.
2.Safety
Observe the following safety information and regulations.
Operate the appliance only when fully installed and with all safety equipment fitted.
2 | DHC |
WWW.STIEBEL-ELTRON.COM |
OPERATION
General
2.1Intended use
The appliance is intended for heating domestic hot water and can supply one draw-off point.
Any other use beyond that described shall be deemed inappropriate.
Observation of these instructions is also part of the correct use of this appliance.
2.2General Information
This appliance is designed for domestic use. It can be used safely by untrained persons. The appliance can also be used in a nondomestic environment, e.g. in a small business, as long as it is used in the same way.
Read this entire manual. Failure to follow all the guides, instructions and rules could cause personal injury or property damage. Improper installation, adjustment, alteration, service and use of this appliance can result in serious injury.
This appliance must be installed by a licensed electrician and plumber. The installation must comply with all national, state and local plumbing and electric codes. Proper installation is the responsibility of the installer. Failure to comply with the installation and operating instructions or improper use voids the warranty.
Save these instructions for future reference. Installer should leave these instructions with the consumer.
If you have any questions regarding the installation, use or operation of this water heater, or if you need any additional installation manuals, please call our technical service line, see last side.
2.3Safety Precautions
DANGER Injury
! Please read and follow these instructions.
Failure to follow these instructions could result in serioius personal injury or death.
! Damage to the appliance and the environment
The appliance must be installed by a licensed electrician and plumber. The installation must comply with all national, state and local plumbing and electric codes.
Service of the appliance must be performed by qualified service TECHNICIANS.
DANGER Electrocution
Before proceeding with any installation, adjustment. alteration, or service of this appliance all circuit breakers and disconnect switches servicing the appliance must be turned off. Failure to do so could result in serious personal injury or death.
DANGER Electrocution
Never remove the appliance‘s cover unless the electricity servicing the appliance is turned off. Failure to do so could result in personal injury or death.
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DANGER Electrocution |
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ENGLISH |
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The appliance must be properly grounded. Failure to |
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electrically ground the product could result in serious |
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personal injury or death. |
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DANGER Burns |
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Water temperatures over 125 °F (52 °C)can cause severe |
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burns instantly or death from scalding. |
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! |
WARNING Injury |
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The appliance may be used by children aged 8 and up |
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and persons with reduced physical, sensory or mental |
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capabilities or a lack of experience provided that they |
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are supervised or they have been instructed on how to |
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use the appliance safely and have understood the result- |
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ing risks. Children must never play with the appliance. |
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Children must never clean the appliance or perform user |
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maintenance unless they are supervised. |
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2.4 Test symbols
See type plate on the appliance.
3.General
The DHC tankless water heater differs from conventional storage type water heaters in several ways. It does not store hot water. Instead, water is heated instantaneously as it flows through the unit. The powerful heating elements are activated by a flow switch as water is drawn from a hot water faucet connected to the DHC. Due to the absence of stand-by losses, the DHC has greater energy efficiency than storage type water heaters.
The temperature of the hot water delivered by the DHC depends on the wattage of the heating element, the temperature of the incoming cold water, and the water flow rate through the unit. In order for the DHC to operate properly, it must be carefully matched to the application.
In case you have questions regarding the way you plan to use the DHC, please call our technical service line at 800-582-8423 (USA and Canada). For service outside the U.S. and Canada, please call us at USA 413-247-3380. You can also e-mail us at info@stiebel-eltron- usa.com or fax us at 413-247-3369.
The DHC can be used for hand washing type applications in the U.S. and Canada:
-- Restroom sinks in commercial/industrial facilities and homes -- Kitchen areas in commercial /industrial facilities and homes -- Cabins
-- Special uses in photo developing shops, laboratories etc.
The DHC can also be used for whole apartments and homes in warm climate zones such as the Caribbean region, Central America and Mexico due to the higher ambient water temperatures.
WWW.STIEBEL-ELTRON.COM |
DHC | 3 |
INSTALLATION Mounting the unit
INSTALLATION
4.Mounting the unit
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26 02 02 0330 |
1Electrical junction box
2Water supply line for faucet installation
33/8“ compression-T
4Shut-off valve
51/2“ main pipe
6Sink
7Cold valve (right)
8Hot valve (left)
DANGER Electrocution
UNIT MUST BE INSTALLED IN A VERTICAL POSITION WITH THE WATER FITTINGS POINTING DOWNWARD. DO NOT INSTALL UNIT WHERE IT WOULD ROUTINELY BE SPLASHED WITH WATER. ELECTRIC SHOCK MAY RESULT.
1.Install DHC as close as possible to the hot water draw-off point, for example, directly underneath the sink or next to the shower stall.
2.Install DHC in a frost free area. If frost may occur, remove unit before freezing temperatures set in.
3.Leave a minimum of 5“ of clearance on all sides for servicing.
4.Remove plastic cover.
26 02 02 1360 |
5.Mount unit securely to wall by putting two screws through mounting holes. Screws and plastic wall anchors for mounting on masonry or wood are provided.
26 02 02 0331 |
26 02 02 1355 |
5.Water connections
1.All plumbing work must comply with national and applicable state and local plumbing codes.
2.A pressure reducing valve must be installed if the cold water supply pressure exceeds 150 PSI (10 bar).
3.Make certain that the cold water supply line has been flushed to remove any scale and dirt.
4.Install isolating valve in cold water line as shown in illustration. This allows the unit to be isolated for maintenance purposes.
5.Cold water connection (inlet) is on the right side of the unit, hot water connection (outlet) is on the left side of unit.
Note
EXCESSIVE HEAT FROM SOLDERING ON COPPER PIPES NEAR THE DHC MAY CAUSE DAMAGE.
4 | DHC |
WWW.STIEBEL-ELTRON.COM |
INSTALLATION Electrical connection
6.Tankless water heaters such as the DHC are not required to be equipped with a Pressure and Temperature Relief Valve (PTRV). If the local inspector will not pass the installation without a PTRV, it should be installed on the hot water outlet side of unit.
7.In case you are connecting to 1/2“ water pipe, solder 1/2“ NPT tapered female adapter by copper on ends of cold and hot water lines. In case you are connecting to 3/8“ water pipe, use a 1/2“ female pipe thread by 3/8“ compression adapter. Braided flexible connectors will work as well. Connect cold and hot water lines to the unit.
8.When all plumbing work is completed, check for leaks and take corrective action before proceeding.
6.Electrical connection
DANGER Electrocution
BEFORE BEGINNING ANY WORK ON THE ELECTRIC INSTALLATION, BE SURE THAT MAIN BREAKER PANEL SWITCH IS „OFF“ TO AVOID ANY DANGER OF ELECTRIC SHOCK. ALL MOUNTING AND PLUMBING MUST BE COMPLETED BEFORE PROCEEDING WITH ELECTRICAL HOOK-UP. WHERE REQUIRED BY LOCAL, STATE OR NATIONAL ELECTRICAL CODES THE CIRCUIT SHOULD BE EQUIPPED WITH A „GROUND FAULT INTERRUPTER“.
1.All electrical work must comply with national and applicable state and local electrical codes.
2.The DHC should be connected to a properly grounded dedicated branch circuit of proper voltage rating. In installations with several DHC units, each unit requires an independent circuit. Please refer to the technical data table for the correct wire and circuit breaker size.
3.The wire must be fed through the rubber seal located between the hot and cold water connections. Then feed wires through strain relief clamp and tighten clamp down on wire. The „live“ wires must be connected to the slots on the terminal block marked N and L (DHC 3-1 only) or L and L (all other versions). The ground wire must be connected to slot marked with the ground symbol.
4.Reinstall plastic cover.
26 02 02 0469 |
7.Putting the water heater into operation
WARNING
! OPEN HOT WATER FAUCET FOR A FEW MINUTES UNTIL
WATER FLOW IS CONTINUOUS AND ALL AIR IS PURGED FROM WATER PIPES. THE UNIT’S PLASTIC COVER MUST BE INSTALLED BEFORE THE CIRCUIT BREAKER IS TURNED ON.
1. Turn on circuit breaker to bring electrical power to the unit. 2. Open hot water faucet to a degree so that water flow is „typical“ i.e. until the water flow is the same as that encountered
during normal use.
3. Wait twenty seconds until temperature has stabilized. Then check water temperature. If temperature is too low, the water flow rate needs to be reduced. In order to do this, turn off the unit’s circuit breaker, remove the cover and turn the flow adjustment screw shown in illustration clockwise 1/2 turn (180 degrees). Then reinstall plastic cover, turn
on circuit breaker and check water temperature. This procedure should be repeated until the desired temperature is achieved. In case the water temperature is too high, turn the flow adjustment screw counter clockwise in the same manner until the desired temperature is achieved. The arrows in illustration refer to the water temperature.
4. In order to obtain temperature control at a single spout mix- er-type faucet, restrict cold water flow to faucet by partially closing the cold water shut-off valve under the sink until cold water and hot water flow rates are approximately the same.
8.Normal maintenance
STIEBEL ELTRON DHC tankless heaters are designed for a very long service life. Actual life expectancy will vary with water quality and use. The unit itself does not require any regular maintenance. However, to ensure consistent water flow, it is recommended to periodically remove scale and dirt that may build up at the aerator of the faucet or in the shower head. Also, the DHC has a built in filter screen that should be cleaned from time to time. In order to do this, turn off the cold water supply at the isolating valve and remove the ground wire. Twist cold water supply tube counterclockwise by 90° and pull towards bottom of unit. Clean screen and put the screen, the cold water supply tube and the ground wire back into their original position. Please be sure that the ground wire is reinstalled and that ground screw is securely tightened after this procedure.
Note
OTHER THAN THE FILTER SCREEN, THE DHC DOES NOT CONTAIN ANY PARTS SERVICEABLE BY THE LAY PERSON. IN CASE OF MALFUNCTION PLEASE CONTACT A LICENSED PLUMBER OR ELECTRICIAN.
DANGER Electrocution
AS WITH ANY ELECTRIC APPLIANCE, FAILURE TO ELECTRICALLY GROUND UNIT MAY RESULT IN SERIOUS INJURY OR DEATH.
ENGLISH
WWW.STIEBEL-ELTRON.COM |
DHC | 5 |
INSTALLATION
Technical Data
9.Technical Data
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b01 |
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360 (14.17") |
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273 (10.75") |
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75 (2.953") |
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8 (0.315") |
c06 |
c01 |
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38 (1.5") |
D0000021558 |
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100 (3.94") |
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110 (4.33") |
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200 (7.88") |
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b01 |
electrical supply cable |
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c01 |
cold water connection |
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1/2 |
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c06 |
hot water connection |
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1/2 |
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9.1Wiring diagram
DHC 3-2, DHC 4-2, DHC 5-2
2/GRD ~ 208 / 240 V
DHC 4-3
2/GRD ~ 277 V
V
L L 
DHC 6-2, DHC 8-2, DHC 10-2
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2/GRD ~ 208 / 240 V |
DHC 9-3 |
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2/GRD ~ 277 V |
DHC 3-1 |
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1/N/GRD ~ 120 V |
85_02_02_0008
V
A
B
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0009 |
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02 02_ |
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85 |
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WWW.STIEBEL-ELTRON.COM
INSTALLATION
Technical Data
9.2Data table
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DHC 3-1 |
DHC 3-2 |
DHC 4-2 |
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DHC 4-3 |
DHC 5-2 |
DHC 6-2 |
DHC 8-2 |
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DHC 9-3 |
DHC 10-2 |
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074050 |
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074052 |
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074053 |
074051 |
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074054 |
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074424 |
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074055 |
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232204 |
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074056 |
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234452 |
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234453 |
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234454 |
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234455 |
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Electrical details |
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Voltage |
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V |
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120 |
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208 |
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240 |
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208 |
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240 |
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277 |
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208 |
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240 |
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208 |
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240 |
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208 |
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240 |
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277 |
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Wattage |
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kW |
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3.0 |
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2.5 |
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3.5 |
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2.9 |
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3.8 |
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4.5 |
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3.6 |
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4.5 |
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6.0 |
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5.4 |
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7.2 |
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9 |
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7.2 |
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9.6 |
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Ampere |
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A |
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25 |
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12 |
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14 |
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14 |
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16 |
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17 |
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18 |
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20 |
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22 |
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25 |
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30 |
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32.5 |
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40 |
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Min. required circuit breker size |
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A |
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30 |
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15 |
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Required wire size |
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AWG |
10 |
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12 |
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12 |
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10 |
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Copper |
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Power connection |
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1/N/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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2/GRD |
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Connections |
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Water connection |
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1/2“ NPT |
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1/2“ NPT |
1/2“ NPT |
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1/2“ NPT |
1/2“ NPT |
1/2“ NPT |
1/2“ NPT |
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1/2“ NPT |
1/2“ NPT |
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Total alkaline earths |
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mol/m³ |
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2.5 |
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2.5 |
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2.5 |
2.5 |
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2.5 |
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2.5 |
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2.5 |
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2.5 |
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2.5 |
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Total hardness (H2O) |
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Degree d |
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14 |
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14 |
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14 |
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14 |
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14 |
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14 |
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14 |
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14 |
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Hardness range |
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2 (average |
2 (average |
2 (average 2 (average |
2 (average |
2 (average |
2 (average 2 (average |
2 (average |
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hardness) |
hardness) |
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hardness) |
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hardness) |
hardness) |
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hardness) |
hardness) |
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hardness) |
hardness) |
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Hydraulic data |
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Rated capacity |
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l |
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0.5 |
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0.5 |
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0.5 |
0.5 |
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0.5 |
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0.5 |
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0.5 |
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0.5 |
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0.5 |
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Rated capacity |
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gal |
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0.13 |
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0.13 |
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0.13 |
0.13 |
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0.13 |
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0.13 |
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0.13 |
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0.13 |
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0.13 |
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Values |
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Max. permissible inlet tem- |
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°C |
30 |
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30 |
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30 |
30 |
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30 |
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30 |
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30 |
30 |
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30 |
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perature |
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Max. permissible inlet tem- |
|
|
°F |
86 |
|
|
86 |
|
|
|
86 |
86 |
|
|
86 |
|
|
|
86 |
|
86 |
|
86 |
|
|
86 |
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|
perature |
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ON |
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l/min |
|
1.2 |
|
|
1.2 |
|
|
|
1.6 |
|
1.6 |
|
|
1.6 |
|
1.8 |
|
2.6 |
|
3.0 |
|
3.0 |
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|||||||||||
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ON |
|
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GPM |
|
0.32 |
|
|
0.32 |
|
0.43 |
0.43 |
|
|
0.43 |
|
|
|
0.48 |
|
0.69 |
|
0.8 |
|
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0.8 |
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|||||||||||||
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Pressure drop at flow rate |
|
|
MPa |
|
0.023 |
|
|
0.023 |
|
0.023 |
0.023 |
|
|
0.023 |
|
0.023 |
|
0.025 |
0.03 |
|
0.03 |
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|||||||||||
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Pressure drop at flow rate |
|
|
PSI |
|
2.88 |
|
|
2.88 |
|
|
|
2.88 |
|
2.88 |
|
|
2.88 |
|
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|
2.88 |
|
3.13 |
|
3.75 |
|
|
3.75 |
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Flow rate for pressure drop |
|
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l/min |
|
1.2 |
|
|
1.2 |
|
|
|
1.6 |
|
1.6 |
|
|
1.6 |
|
1.8 |
|
2.6 |
|
3.0 |
|
3.0 |
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||||||||||||
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Flow rate for pressure drop |
|
|
GPM |
|
0.32 |
|
|
0.32 |
|
0.43 |
0.43 |
|
|
0.43 |
|
|
|
0.48 |
|
0.69 |
|
0.8 |
|
|
0.8 |
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DHW delivery |
|
|
l/min |
|
1.2 |
|
|
1.2 |
|
|
|
1.6 |
|
1.6 |
|
|
1.6 |
|
1.8 |
|
2.6 |
|
3.0 |
|
3.0 |
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||||||||||||
|
DHW delivery |
|
|
GPM |
|
0.32 |
|
|
0.32 |
|
0.43 |
0.43 |
|
|
0.43 |
|
|
|
0.48 |
|
0.69 |
|
0.8 |
|
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0.8 |
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|||||||||||||
|
ϑ if presented |
|
|
K |
|
36 |
|
|
30 |
|
34 |
40 |
|
|
43 |
|
48 |
|
30 |
43 |
|
34 |
||||||||||||||||||||
|
Application limits |
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Max. permissible pressure |
|
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MPa |
|
1 |
|
|
1 |
|
1 |
1 |
|
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1 |
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|
1 |
|
1 |
|
1 |
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1 |
||||||||||||||||
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|||||||||||||
|
Max. permissible pressure |
|
|
PSI |
|
150 |
|
|
150 |
|
150 |
150 |
|
|
150 |
|
150 |
|
150 |
|
150 |
|
150 |
|||||||||||||||||||
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||||||||||||
|
Test pressure |
|
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MPa |
|
2 |
|
|
2 |
|
2 |
2 |
|
|
2 |
|
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|
2 |
|
2 |
|
2 |
|
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2 |
||||||||||||||||
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|||||||||||||
|
Test pressure |
|
|
PSI |
|
300 |
|
|
300 |
|
300 |
300 |
|
|
300 |
|
300 |
|
300 |
300 |
|
300 |
||||||||||||||||||||
|
Versions |
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IP-Rating |
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|
|
IP25 |
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IP25 |
|
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IP25 |
|
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|
IP25 |
|
|
IP25 |
|
|
IP25 |
|
|
IP25 |
|
IP25 |
|
|
IP25 |
||||||||||
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|||||||||||
|
Material of the pressure vessel |
|
|
|
|
Copper |
|
|
Copper |
|
Copper |
|
|
|
Copper |
|
Copper |
|
Copper |
|
Copper |
|
Copper |
|
Copper |
|||||||||||||||||
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|||||||||||||||||
|
Heating system |
|
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|
|
Tubular |
|
Tubular |
Tubular |
|
|
|
Tubular |
Tubular |
Tubular |
Tubular |
|
Tubular |
Tubular |
|||||||||||||||||||||||
|
|
|
|
|
|
|
heater |
|
|
heater |
|
heater |
|
|
|
heater |
|
heater |
|
heater |
|
heater |
|
heater |
|
heater |
||||||||||||||||
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|||||||||||
|
Cap and back panel |
|
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|
|
Plastic |
|
|
Plastic |
|
Plastic |
|
|
|
Plastic |
|
Plastic |
|
Plastic |
|
Plastic |
|
Plastic |
|
Plastic |
|||||||||||||||||
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||||
|
Colour |
|
|
|
|
white |
|
|
|
|
white |
|
|
white |
|
|
|
white |
|
|
white |
|
|
white |
|
|
white |
|
white |
|
|
white |
||||||||||
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|
||||
|
Colour |
|
|
|
|
white |
|
|
|
|
white |
|
|
white |
|
|
|
white |
|
|
white |
|
|
white |
|
|
white |
|
white |
|
|
white |
||||||||||
|
Dimensions |
|
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|
|
|
|
Height |
|
|
mm |
|
360 |
|
|
360 |
|
|
|
360 |
|
360 |
|
|
360 |
|
|
|
360 |
|
360 |
|
360 |
|
|
360 |
|||||||||||||
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|
|
|||||||||||
|
Height |
|
|
in |
|
14.17 |
|
|
14.17 |
|
|
|
14.17 |
|
14.17 |
|
|
14.17 |
|
|
|
14.17 |
|
14.17 |
|
14.17 |
|
|
14.17 |
|||||||||||||
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|
|||||||||||
|
Width |
|
|
mm |
|
200 |
|
|
200 |
|
|
|
200 |
|
200 |
|
|
200 |
|
|
|
200 |
|
200 |
|
200 |
|
|
200 |
|||||||||||||
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|
|||||||||||
|
Width |
|
|
in |
|
7.88 |
|
|
7.88 |
|
|
|
7.88 |
|
7.88 |
|
|
7.88 |
|
|
|
7.88 |
|
7.88 |
|
7.88 |
|
|
7.88 |
|||||||||||||
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||||||||||||
|
Depth |
|
|
mm |
|
100 |
|
|
100 |
|
100 |
100 |
|
|
100 |
|
|
|
100 |
|
100 |
|
100 |
|
|
100 |
||||||||||||||||
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|
|
|||||||||||||
|
Depth |
|
|
in |
|
4.33 |
|
|
4.33 |
|
4.33 |
4.33 |
|
|
4.33 |
|
4.33 |
|
4.33 |
|
4.33 |
|
|
4.33 |
||||||||||||||||||
|
Weights |
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|
Weight |
|
|
kg |
|
2.1 |
|
|
2.1 |
|
2.1 |
2.1 |
|
|
2.1 |
|
|
|
2.4 |
|
2.4 |
|
2.4 |
|
|
2.4 |
||||||||||||||||
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|
|||||||||||||
|
Weight |
|
|
lb |
|
4.6 |
|
|
4.6 |
|
4.6 |
4.6 |
|
|
4.6 |
|
4.6 |
|
4.6 |
4.6 |
|
4.6 |
||||||||||||||||||||
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|
|
-- |
Suitable for supply with cold water |
|
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|||||||
-- |
Tankless water heaters are considered a non-continuous load |
|
|
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|
||||||||||||||||
-- |
Conductors should be sized to maintain a voltage drop of less |
|
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||||||||||||||||
|
|
than 3 % under load |
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|
|
ENGLISH
WWW.STIEBEL-ELTRON.COM |
DHC | 7 |
INSTALLATION
Temperature increase above ambient water temperature
10.Temperature increase above ambient water temperature
|
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|
|
[ °F ] |
|
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|
||
Typ |
|
|
kW |
|
GPM |
(gallon per minute) |
|
|
|
|
|
|
|
|
|||||||||
|
|
|
|
0.32 |
|
0.42 |
0.48 |
0.5 |
0.69 |
0.75 |
0.79 |
1.0 |
1.5 |
2.0 |
|||||||||
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|
|
|
|
|
|
|
|
DHC 3-1 |
3.0 |
65 |
|
49 |
43 |
41 |
30 |
27 |
26 |
20 |
14 |
10 |
|||||||||||
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|
|
|
|
|
|
DHC 3-2 |
|
2.5 |
54 |
|
40 |
35 |
34 |
25 |
23 |
21 |
17 |
11 |
9 |
||||||||||
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|
|
3.3 |
71 |
|
53 |
47 |
45 |
33 |
30 |
28 |
22 |
15 |
11 |
||||||||||
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|
|
DHC 4-2 |
|
2.9 |
– |
47 |
41 |
40 |
29 |
26 |
25 |
20 |
13 |
10 |
|||||||||||
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|
|
3.8 |
– |
61 |
54 |
52 |
38 |
35 |
33 |
26 |
17 |
13 |
|||||||||||
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|
|
DHC 4-3 |
4.5 |
– |
73 |
64 |
61 |
45 |
41 |
39 |
31 |
20 |
15 |
||||||||||||
|
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|
DHC 5-2 |
|
3.6 |
– |
58 |
51 |
49 |
36 |
33 |
31 |
25 |
16 |
12 |
|||||||||||
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|
|
|
|
|
|
|
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|
|
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|
|
|
|
|
4.8 |
– |
77 |
68 |
65 |
48 |
44 |
41 |
33 |
22 |
16 |
|||||||||||
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|
|
|
|
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DHC 6-2 |
|
4.5 |
– |
– |
64 |
61 |
45 |
41 |
39 |
31 |
20 |
15 |
|||||||||||
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6.0 |
– |
– |
85 |
82 |
60 |
55 |
52 |
41 |
27 |
20 |
|||||||||||
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DHC 8-2 |
|
5.4 |
– |
– |
|
– |
|
– |
54 |
49 |
46 |
37 |
25 |
18 |
|||||||||
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7.2 |
– |
– |
|
– |
|
– |
71 |
65 |
62 |
49 |
33 |
25 |
|||||||||
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|
|
|
|
DHC 9-3 |
9.0 |
- |
|
- |
- |
- |
- |
- |
77 |
58 |
41 |
31 |
|||||||||||
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|
|
DHC 10-2 |
|
7.2 |
– |
– |
- |
|
– |
|
– |
|
– |
62 |
49 |
33 |
25 |
||||||||
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|
9.6 |
– |
– |
- |
|
– |
|
– |
|
– |
82 |
65 |
44 |
33 |
||||||||
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Min. water flow to activate unit
|
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|
[ °C ] |
|
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||
Typ / Type |
|
kW |
l/min |
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||
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|
|
1.2 |
|
1.6 |
1.8 |
2.0 |
2.6 |
3.0 |
4.0 |
5.0 |
7.5 |
||||||||
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|
|
DHC 3-1 |
|
3.0 |
36 |
|
27 |
24 |
22 |
17 |
14 |
11 |
9 |
6 |
||||||||
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|
DHC 3-2 |
|
2.5 |
30 |
|
22 |
20 |
18 |
14 |
12 |
9 |
7 |
5 |
||||||||
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3.3 |
39 |
|
30 |
26 |
24 |
18 |
16 |
12 |
9 |
6 |
||||||||
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|
DHC 4-2 |
|
2.9 |
– |
26 |
23 |
21 |
16 |
14 |
10 |
8 |
6 |
|||||||||
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|
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|
|
3.8 |
– |
34 |
30 |
27 |
21 |
18 |
14 |
11 |
7 |
|||||||||
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|
DHC 4-3 |
|
4.5 |
– |
40 |
36 |
32 |
25 |
22 |
16 |
13 |
9 |
|||||||||
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|
DHC 5-2 |
|
3.6 |
– |
32 |
29 |
26 |
20 |
17 |
13 |
10 |
7 |
|||||||||
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|
4.8 |
– |
43 |
38 |
34 |
26 |
23 |
17 |
14 |
9 |
|||||||||
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DHC 6-2 |
|
4.5 |
– |
– |
36 |
32 |
25 |
22 |
16 |
13 |
9 |
|||||||||
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|
6.0 |
– |
– |
48 |
43 |
33 |
29 |
22 |
17 |
11 |
|||||||||
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DHC 8-2 |
|
5.4 |
– |
– |
– |
|
– |
30 |
26 |
19 |
15 |
10 |
||||||||
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|
7.2 |
– |
– |
– |
|
– |
40 |
34 |
26 |
21 |
14 |
||||||||
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DHC 9-3 |
|
9.0 |
- |
|
- |
- |
- |
- |
43 |
32 |
26 |
17 |
||||||||
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|
DHC 10-2 |
|
7.2 |
– |
– |
– |
|
– |
|
– |
34 |
26 |
21 |
14 |
|||||||
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9.6 |
– |
– |
– |
|
– |
|
– |
46 |
34 |
28 |
18 |
|||||||
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Min. water flow to activate unit
8 | DHC |
WWW.STIEBEL-ELTRON.COM |
INSTALLATION
Troubleshooting
11. Troubleshooting
Symptom |
|
Possible cause |
|
Solution |
No hot water but audible click can be heard when |
|
circuit breaker off |
|
circuit breaker on. |
water is turned on |
|
|
|
|
|
|
safety thermal cut-out tripped |
|
reset thermal cut-out. |
No hot water and no audible click can be heard when |
|
water flow too low to activate flow switch |
|
clean faucet aerator. |
water is turned on |
|
|
|
|
|
|
|
|
open shut-off valve completely. |
|
|
|
|
open flow adjustment screw. |
|
|
|
|
clean filter screen at DHC unit (see figure “Spare |
|
|
|
|
parts”). |
Water not warm enough |
|
water flow too high |
|
reduce wter flow, close flow agjusment screw. |
|
|
voltage too low |
|
supply correct voltage to unit. |
If you are not able to resolve a problem please contact us toll free at 800-582-8423 before removing the unit from the wall. STIEBEL ELTRON is happy to provide technical assistance. In most instances, we can resolve the problem over the phone.
Open flow adjustment screw
ENGLISH
26_02_02_1358
Reset button from safety thermal cut out
26_02_02_1357
WWW.STIEBEL-ELTRON.COM |
DHC | 9 |
INSTALLATION
Spare parts
12. |
Spare parts |
|
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||
|
No. |
Spare part |
DHC 3-1 |
DHC 3-2 |
DHC 4-2 |
DHC 4-3 |
DHC 5-2 |
DHC 6-2 |
DHC 8-2 |
DHC 9-3 |
DHC 10-2 |
||||||||||
|
1 |
|
Heating system |
|
165889 |
|
167769 |
|
167770 |
|
165890 |
|
167771 |
|
171117 |
|
167772 |
|
296874 |
167773 |
|
|
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|
2 |
|
Flow switch |
|
165273 |
|
165273 |
|
162162 |
|
162162 |
|
162162 |
|
171105 |
162164 |
|
162465 |
|
162165 |
|
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|
|
|
|
|
|
|
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|
3 |
|
Thermostat |
|
162472 |
|
162472 |
|
162472 |
|
162472 |
162472 |
|
162472 |
|
162472 |
|
162472 |
|
162472 |
|
|
4 |
|
Switch |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
168026 |
|
5 |
|
Housing (back) |
|
165891 |
|
165891 |
|
165891 |
|
165891 |
165891 |
|
165891 |
165891 |
|
165891 |
165891 |
|||
|
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|
6 |
|
Plumbing connection |
|
165893 |
|
165893 |
|
165893 |
|
165893 |
165893 |
|
165893 |
|
165893 |
|
165893 |
|
165893 |
|
|
|
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|
|
|
|
|
|
|
|
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|
|
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|
|
|
|
|
|
|
|
7 |
|
Housing (front) |
|
165892 |
|
165892 |
|
165892 |
|
165892 |
165892 |
|
165892 |
|
165892 |
|
165892 |
|
165892 |
|
|
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|
|
|
|
|
|
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|
|
|
|
|
8 |
|
Safety thermal cut out |
|
162474 |
|
162474 |
|
162474 |
|
162474 |
162474 |
|
162474 |
|
162474 |
|
162474 |
|
162474 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
9 |
|
Wiring block |
|
026010 |
|
026010 |
|
026010 |
|
026010 |
026010 |
|
026010 |
026010 |
|
026010 |
026010 |
|||
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
10 |
|
Copper tube |
|
162314 |
|
162314 |
|
162314 |
|
162314 |
162314 |
|
162314 |
162314 |
|
162314 |
162314 |
|||
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11 |
|
Module chassis |
|
162462 |
|
162462 |
|
162462 |
|
162462 |
162462 |
|
162462 |
|
162462 |
|
162462 |
|
162462 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
12 |
|
Wire strain relief clamp |
|
055754 |
055754 |
055754 |
055754 |
055754 |
055754 |
055754 |
|
055754 |
055754 |
|||||||
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
13 |
|
Filter screen |
|
252430 |
252430 |
252430 |
252430 |
252430 |
252430 |
252430 |
252430 |
252430 |
||||||||
|
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8
3 |
|
|
|
4 |
|
|
|
2
1
10
11 |
|
5 |
|
6
13
7 9 12
D0000043978
10 | DHC |
WWW.STIEBEL-ELTRON.COM |
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