STIEBEL ELTRON PSH 20 Plus Instruction Manual

OPERATION AND INSTALLATION
FONCTIONNEMENT ET INSTALLATION
Wall-Mounted Tank Water Heaters | Chauffe-eau à réservoir mural
»PSH20Plus
»PSH30Plus
Conforms to ANSI/UL Std. 174
Certified to CAN/CSA Std. C22.2 No. 110
Conforme a ANSI/UL Std. 174
Certificación con CAN/CSA Std. C22.2 No. 110
Conforme à la norme ANSI/UL Std. 174
Certifié à la norme CAN/CSA Std. C22.2 No. 110
Tested and certified by WQA to NSF/ANSI372
for lead free compliance.
Probado y certificado por WQA NSF/ANSI 372 para
el cumplimiento de las regulaciones sin plomo.
Testé et certifié par WQA à la NSF/ANSI 372 pour
une utilisation sans plomb.

2| PSH Plus www.stiebel-eltron-usa.com
CONTENTS | SPECIAL INFORMATION
SPECIAL INFORMATION
OPERATION
1. General information _________________________________________4
1.1 Safety instructions_______________________________________________ 4
1.2 Other symbols in this documentation _______________________ 4
2. Safety__________________________________________________________4
2.1 Intended use______________________________________________________ 4
2.2 General safety instructions ____________________________________ 4
2.3 Test symbols ______________________________________________________ 5
3. Register your product _______________________________________5
4. Appliance description _______________________________________5
5. Settings _______________________________________________________5
5.1 Vacation and absence___________________________________________ 6
6. Cleaning, care and maintenance ___________________________6
7. Troubleshooting ______________________________________________6
INSTALLATION
8. Safety__________________________________________________________7
8.1 General safety instructions ____________________________________ 7
8.2 Instructions, standards and regulations ____________________ 7
9. Appliance description _______________________________________7
9.1 Standard delivery________________________________________________ 7
9.2 Accessories________________________________________________________ 7
10. Preparations__________________________________________________7
10.1 Installation site___________________________________________________ 7
10.2 Securing the plywood backing sheet ________________________ 8
10.3 Mounting onto the plywood backing sheet_________________ 8
11. Installation____________________________________________________9
11.1 Water connection ________________________________________________ 9
11.2 Power supply _____________________________________________________ 9
12. Commissioning _______________________________________________9
12.1 Commissioning___________________________________________________ 9
12.2 Recommissioning________________________________________________ 9
13. Shutting down________________________________________________9
14. Troubleshooting ______________________________________________9
15. Maintenance ________________________________________________ 10
15.1 Draining the appliance ________________________________________ 10
15.2 Checking / replacing the sacrificial anode_________________ 10
15.3 Descaling _________________________________________________________ 10
15.4 Anti-corrosion protection _____________________________________ 10
15.5 Replacing the power cable ___________________________________ 10
15.6 Replacing the combined controller/limiter ________________ 11
16. Specification ________________________________________________ 11
16.1 Dimensions and connections_________________________________ 11
16.2 Wiring diagram _________________________________________________ 12
16.3 Heat-up diagrams ______________________________________________ 12
16.4 Data table ________________________________________________________ 13
16.5 Spare parts_______________________________________________________ 14
17. Warranty ____________________________________________________ 15
SPECIAL INFORMATION
- Only use a permanent connection to the power
supply. The appliance must be able to be sepa-
rated from the power supply by a circuit breaker
that disconnects all poles.
- Mount the appliance in position as described in
chapter 10, “Preparations”, pg. 7.
- Observe the maximum permissible pressure (see
chapter 16.4, “Data table”, pg. 13).
- Drain the appliance as described in the chapter
15.1, “Draining the appliance”, pg. 10.
- Size the drain so that water can drain off unim-
peded when the T&P relief valve is fully opened.
- Plumb the discharge pipe of the T&P relief valve
with a constant downward slope and in a room
free from the risk of frost.
- The safety valve discharge opening must remain
open to the atmosphere. Do not immerse it in
water.

ENGLISH
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SPECIAL INFORMATION
Suggested plumbing schematic for PSH Plus
M
VB
1
2
3
4
5
6
7
8
9
10
11
12
13
Hot water
Cold water
1 PSH Plus
2 Pressure reducing valve (70 psi [0.48 MPa], required, not provided)
3 Check valve (recommended, not provided)
4 Ball valve (recommended, not provided)
5 Expansion tank (required, not provided)
6 Vacuum breaker (required, not provided)
7 Boiler drain valve (recommended, not provided)
8 Cold water inlet
9 Hot water outlet
10 Temperature & pressure (T&P) relief valve (150 psi [1.03 MPa], provided)
11 Mixing valve (recommended, not provided)
12 PSH drain pan (recommended, not provided, item no. 328651)
13 Drain

OPERATION
General information
4| PSH Plus www.stiebel-eltron-usa.com
OPERATION
1. General information
The chapters "Operation" and "Special Information" are intended
for both the user and qualified technicians.
The chapter "Installation" is intended for qualified technicians.
Note
Read these instructions carefully before using the appli-
ance and keep them for future reference.
Pass on the instructions to a new user if required.
1.1 Safety instructions
1.1.1 Structure of safety instructions
!
KEYWORD Type of risk
Here, possible consequences are listed that may result
from failure to observe the safety instructions.
f Steps to prevent the risk are listed.
1.1.2 Symbols, type of risk
Symbol Type of risk
Injury
Electrocution
Burns
1.2 Other symbols in this documentation
Note
General information is identified by the symbol shown
on the left.
f Read these texts carefully.
Symbol Meaning
Material losses
(appliance and collateral losses, environmental pollution)
Appliance disposal
2. Safety
2.1 Intended use
The appliance is intended for heating domestic hot water and can
supply one or more tapping points.
This appliance is intended for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-do-
mestic environment, e.g. in a commercial setting, as long as it is
used in the same way.
Any other use beyond that described shall be deemed inappro-
priate. Using the appliance for heating fluids other than water or
water supplemented with chemicals, such as brine, is also deemed
inappropriate.
Observation of these instructions and of instructions for any ac-
cessories used is also part of the correct use of this appliance.
!
WARNING
To reduce the risk of excessive pressures and tempera-
tures in this water heater, install temperature and pres-
sure protective equipment required by local codes and
no less than a combination temperature and pressure
relief valve certified by a nationally recognized testing
laboratory that maintains periodic inspection of pro-
duction of listed equipment or materials, as meeting
the requirements for Relief Valves and Automatic Gas
Shutoff Devices for Hot Water Supply Systems, ANSI
Z21.22.
The valve must be marked with a maximum set pres-
sure not to exceed the marked maximum working pres-
sure of the water heater, and orient it or provide tubing
so that any discharge from the valve exits only within 6
inches above, or at any distance below, the structural
floor, and does not contact any live electrical part. The
discharge opening must not be blocked or reduced in
size under any circumstances.
2.2 General safety instructions
WARNING Burns
During operation, the tap and T&P relief valve can reach
temperatures in excess of 140°F (60°C).
There is a risk of scalding at outlet temperatures in
excess of 109°F (43 °C).
!
Material losses
The user should insulate the water lines and the T&P
relief valve to protect them from freezing.
Note
The appliance is under pressure. During the heat-up pro-
cess, water will expand and increase in pressure. Without
an expansion vessel, the water will drip from the T&P
relief valve.
f Ensure that an expansion vessel is installed in line
with the water heater.
f If water continues to drip when heating is complet-
ed, please inform the installer.
!
!

OPERATION
Register your product
ENGLISH
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2.3 Test symbols
See the type plate on the appliance for testing information and
certification details.
3. Register your product
You must register this product within 90 days of pur-
chase on our web site in order to activate the standard
warranty or to be eligible for the extended warranty.
Go to our web site at www.stiebel-eltron-usa.com
and click on “Register Your Product”.
Before beginning the registration process, we suggest that
you gather the necessary information which will be as
follows:
Type, Example: PSH 30 Plus (from label that is on the unit)
Number listed after “Nr.”
Place of Purchase
Purchase Date
First & Last Name
Email address
Physical Address
Phone Number
Installation Date
IF YOU HAVE ANY QUESTIONS CONCERNING THE REGISTRA-
TION PROCESS OR WARRANTY OPTIONS, PLEASE CONTACT
STIEBEL ELTRON USA DIRECTLY AT 800.582.8423.
4. Appliance description
The appliance heats DHW using an electric resistance element.
You can adjust the temperature using the temperature knob. The
water is heated automatically to the required temperature.
The internal steel cylinder is coated with special "Co Pro" enamel
and is equipped with a sacrificial anode. The anode protects the
interior of the tank from corrosion. When the sacrificial anode
becomes worn, it will need to be replaced.
Frost protection
The appliance is also protected against freezing by the temperature
setting "*", provided that the appliance is supplied with power.
The appliance switches on when necessary and heats the water to
avoid freezing. The frost protection measure does not protect the
water supply lines and the T&P relief valve from freezing.
12
1 Hot water outlet stub
2 Cold water inlet stub
5. Settings
The temperature can be freely adjusted. It is factory set to 125 °F
(52 °C).
Turn the knob clockwise to increase the temperature setting, and
counter-clockwise to decrease it.
max
D0000037146
2
1
34
5
1 ON/OFF indicator
2 Temperature knob
3 Frost protection
4 Recommended energy saving position, low scaling, 140 °F
(60 °C)
5 Maximum temperature setting, 167°F (75°C)

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INSTALLATION
Cleaning, care and maintenance
Depending upon the system, the actual water temperatures at the
tapping points may be lower than the set value.
WARNING Burns
There is a risk of scalding at outlet temperatures in
excess of 109°F (43 °C).
Setting the temperature above 125°F (52°C) is not rec-
ommended without the installation of a mixing valve.
ON/OFF indicator
The ON/OFF indicator illuminates when water is being heated.
5.1 Vacation and absence
f If the appliance will not be used for a few days, set the tem-
perature knob to a position between the frost protection and
energy saving settings.
f If the appliance is not to be used for a longer period, set it to
frost protection to conserve energy. If there is no risk of frost
you may disconnect the appliance from the power supply.
f To protect against Legionella, heat the water once 140 °F
(60°C) before using hot water again.
6. Cleaning, care and maintenance
f Have the electrical safety of the appliance and the func-
tion of the T&P relief valve regularly checked by a qualified
technician.
f Have the sacrificial anode initially checked by a qualified
technician after the first year. The qualified technician should
then determine the intervals at which it must be checked
thereafter.
f Never use abrasive or corrosive cleaning agents. A damp
cloth is sufficient for cleaning the exterior of the appliance.
Scaling
f Almost every type of water will deposit lime at high tem-
peratures. This settles inside the appliance and affects both
the performance and service life. The heating elements must
therefore be descaled from time to time. A qualified tech-
nician who knows the local water quality will tell you when
the next service is due. Contact the water supplier or local
plumbing inspector for additional information.
f Check the taps/faucets regularly. You can remove lime scale
deposits at the outlets using commercially available descal-
ing agents.
f Regularly activate the T&P relief valve to prevent it from be-
coming blocked e.g. by lime scale deposits.
7. Troubleshooting
Problem Cause Remedy
The water does not heat
up and the ON/OFF indi-
cator does not illuminate.
There is no power. Check the fuses/circuit
breakers in your fuse
box.
The water does not heat
up sufficiently and the
ON/OFF indicator is illu-
minated.
The temperature is set
too low.
Select a higher tempera-
ture.
The appliance is heating,
for example, after large
amounts of DHW have
been drawn.
Wait until the ON/OFF
indicator goes out.
The flow rate is low. The aerator in the tap or
shower head is scaled up
or contaminated.
Clean and/or descale the
aerator or shower head.
If you cannot remedy the fault, notify your qualified technician. To
facilitate and speed up your inquiry, please provide the numbers
from the type plate (000000 and 0000-000000):
Technical data
Datos técnicos
Données techniques
Made in EU
Hecho en EU
Fabriqué en EU
Volume:
Volumen:
Volume:
1 MPa / 145 PSI
Max. pressure:
Presión máxima:
Pression max:
PSH XX Plus
M-NO.: 000000
S-NO.: 0000-000000
Supply:
Alimentación:
Alimentation:
220-240 V AC, 60 Hz
SINGLE PHASE L-L ONLY
Power:
Potencia:
Puissance:
Standby loss:
Pérdida de calor:
Pertes en mode de veille:
1,5 MPa / 217 PSI
Testing pressure:
Presión de prueba:
Pression d'essai:

ENGLISH
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INSTALLATION
Safety
INSTALLATION
8. Safety
Only a qualified technician should carry out installation, commis-
sioning, maintenance and repair of the appliance.
8.1 General safety instructions
We guarantee trouble-free function and operational reliability only
if original accessories and spare parts intended for the appliance
are used and if the installation is performed as described in this
manual.
8.2 Instructions, standards and regulations
Note
Observe all applicable national, state and local regula-
tions and instructions.
9. Appliance description
9.1 Standard delivery
The following are delivered with the appliance:
- T&P relief valve
9.2 Optional accessories
- PSH Plus drain pan [item no. 328651]
1
1 PSH Plus drain pan [item no. 328651]
The optional drain pan can be mounted below the appliance. The
drain pan will route away water from an activated T&P relief valve
or a leaking appliance.
10. Preparations
!
Material losses
Mounting a water heater that does not meet the structural
requirement needed may lead to significant damage to
the water heater and the installation location.
Ensure that all fasteners used are of sufficient penetration
depth into a suitable material to support the full weight
of the appliance with an acceptable additional factor of
safety.
Before installing the appliance, ensure that the mounting location
will sufficiently hold the filled weight of the appliance with a factor
of safety of at least 50%. Consult a qualified installer or a struc-
tural engineer to evaluate whether the appliance can be safely
mounted in the desired location. Failure to properly evaluate the
installation location for structural integrity could result in damage
to the water heater and the installation location.
10.1 Installation site
The instructions below describe the mounting process for an
installation space with wooden studs. If the appliance will be
installed in a space without wooden studs, follow a similar con-
struction procedure with comparable weight and loading con-
siderations. Consult Stiebel Eltron for more information if you
are unsure about mounting the appliance with the materials you
have on hand.
36Ý
16Ý
48Ý
6ÝVFUHZVSDFLQJ
DERYHZDOOEUDFNHW
12ÝVFUHZVSDFLQJ
EHORZZDOOEUDFNHW
1
2
3
5
4
1 Stud (wood, 16˝ on center)
2 ¾˝ plywood sheet
3 Wood screws (at least #10 x 2½˝ long)
4 PSH Plus
5 Tee nut, washer, & ½˝ bolt

8| PSH Plus www.stiebel-eltron-usa.com
INSTALLATION
Preparations
Note
Ensure that the temperature knob will be accessible from
the front when the appliance is secured in place.
The appliance is designed to be permanently wall-mounted to a
solid surface. Ensure the wall offers adequate load bearing ca-
pacity. Consult the specification table for the filled weight of your
appliance.
There should be a suitable drain near the appliance to drain off
water in the case of activation of the T&P relief valve.
Always install the appliance vertically in a room free from the risk
of freezing and as close as possible to the draw-off points.
The appliance may not be fitted in a corner since the screws for
fixing the appliance to the wall must remain accessible.
10.2 Securing the plywood backing sheet
This procedure calls for mounting a ¾˝ plywood sheet to the wall
attaching to at least 3 wooden studs, or another wall surface using
comparable means. Mount the appliance to the plywood sheet
using ½˝ diameter fasteners.
f Transfer the dimensions for the holes to be drilled on the ply-
wood sheet (see chapter 16.1, “Dimensions and connections”,
pg. 11).
f Drill a hole in the plywood to fit the ½˝ tee nuts into the back
side of the sheet. Thread the ½˝ bolt and washer into the tee
nut, leaving a gap for the tank to mount on.
To mounting
surface
To interior
space
3
2
1
4
1 ½˝ x 1¼˝ bolt
2 Washer
3 ½˝ tee nut
4 ¾˝ plywood
f Find the wall studs and mark their location. This is the most
secure means of mounting the sheet on the wall.
f Secure the plywood sheet to the studs with screws at least
size #10 x 2½˝ long. Space the screws every 6˝ above the
location of the tee nuts, and every 12˝ below. Use a level to
align the sheet horizontally.
f It is recommended to mount the plywood onto 2x6 studs, but
an installation on 2x4 studs is acceptable if mounted to at
least 3 studs. If studs are spaced farther apart than 16˝, use
a wider plywood sheet and make sure to mount to at least 3
studs.
7
6
5
5 ¾˝ drywall
6 2˝x6˝ stud
7 #10 x 2½˝ wood screw
10.3 Mounting onto the plywood backing sheet
The mounting bracket attached to the appliance has hook-in slots.
f Lift the appliance and mount it onto the ½˝ bolts. Make sure
the washers are on the outside of the mounting bracket.
1
1 PSH Plus
f Tighten the bolts onto the washer and the bracket.

ENGLISH
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INSTALLATION
Installation
11. Installation
11.1 Water connection
!
Material losses
Carry out all water connection and installation work in
accordance with regulations.
Operate the appliance only with pressure-tested taps.
f Connect the hydraulic connections with flat gaskets or with
PTFE tape and pipe thread sealant. The connecting nipples
are bare steel. Use only brass or stainless steel unions or
adapters to connect directly to the tank.
11.1.1 Permissible materials
!
Material losses
When using plastic piping, observe the manufacturer's
data and use piping with very low oxygen permeability.
Cold water line
Only dielectric unions, brass or stainless steel connections can be
made directly to the cold and hot water line.
11.1.2 Fitting the T&P relief valve
Note
The supplied T&P relief valve must be used.
Note
If the water pressure is greater than 87 psi (0.6MPa),
install a pressure reducing valve in the "cold water inlet".
The maximum permissible pressure must not be exceeded (see
chapter 16.4, “Data table”, pg. 13).
f Please note that, depending on the static pressure, you may
need a pressure reducing valve.
f Size the drain so that water can drain off unimpeded when
the T&P relief valve is fully opened.
f Fit the discharge pipe of the T&P relief valve with a constant
downward slope and in a room free from the risk of frost.
f The safety valve discharge opening must remain open to the
atmosphere. Do not immerse in water.
11.2 Power supply
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
Only use a permanent connection to the power supply.
The appliance must be able to be separated from the
power supply by a circuit breaker that disconnects all
poles. Before any work on the appliance, disconnect all
poles from the power supply. Ensure that the appliance
is grounded.
!
Material losses
Observe the type plate. The specified voltage must match
the mains voltage.
12. Commissioning
12.1 Commissioning
Note
Fill the appliance with water prior to electrical connec-
tion. If you switch on the appliance while empty, the high
limit safety cut-out will activate and need to be reset.
f Thoroughly flush out the cold water line before connecting
the appliance, so that no foreign material gets into the water
heater or T&P relief valve.
f Open the shut-off valve in the cold water feed line.
f Open a draw-off point until the appliance has filled up and
the piping is free of air.
f Turn the temperature knob to maximum.
f Switch the on the circuit breaker connected to the appliance.
f Check the function of the appliance. Turn the temperature
knob down to the minimum setting. Ensure that the thermo-
stat switches off.
f Turn the temperature knob back to the energy saving setting.
f Check that the T&P relief valve is working correctly.
12.1.1 Appliance handover
f Explain the function of the appliance and T&P relief valve to
users and familiarize them with their operation.
f Make users aware of potential dangers, especially the risk of
scalding.
f Hand over these instructions.
12.2 Recommissioning
See chapter 12.1, “Commissioning”, pg. 9.
13. Shutting down
f Disconnect the appliance from the mains at the circuit break-
er/fuse. If possible, lock out the breaker so that it cannot be
accidentally activated.
f Drain the appliance. See chapter 15.1, “Draining the appli-
ance”, pg. 10.
14. Troubleshooting
Note
The high limit safety cut-out can activate at temperatures
below 5 °F (–15°C). The appliance may be subjected to
these temperatures during storage or transport. If the
appliance does not heat during the initial commissioning,
the high limit safety cut-out switch may need to be reset.

10 | PSH Plus www.stiebel-eltron-usa.com
INSTALLATION
Maintenance
Fault Cause Remedy
The water does not heat
up and the ON/OFF indi-
cator does not illuminate.
The high limit safety
cut-out has responded
because the controller is
faulty.
Remedy the cause of the
fault. Replace the con-
troller.
The high limit safety
cut-out has responded
because the temperature
has fallen below 5 °F
(-15 °C).
Press the reset button
(see diagram).
The water does not heat
up and the ON/OFF indi-
cator illuminates.
The heating element is
faulty.
Replace the heating el-
ement.
The water does not heat
up sufficiently and the
ON/OFF indicator illumi-
nates.
The temperature control-
ler is faulty.
Replace the temperature
controller.
The heat-up time is very
long and the ON/OFF in-
dicator illuminates.
The heating element is
scaled up.
Descale the heating el-
ement.
The T&P relief valve drips
when heating is switched
off.
The valve seat is contam-
inated.
Clean the valve seat.
Water pressure is too
high.
Install a pressure reduc-
ing valve.
An expansion vessel was
not installed.
Install an expansion
vessel in line with the
appliance (see plumbing
schematic).
Reset key, high limit safety cut-out
If the high limit safety cut-out has activated, it should be reset.
Shut off the circuit breaker connected to the appliance before
removing the bottom cover and resetting the switch.
15. Maintenance
WARNING Electrocution
Carry out all electrical connection and installation work
in accordance with relevant regulations.
Before any work on the appliance, disconnect all poles
of the appliance from the power supply.
If you need to drain the appliance, observe chapter 15.1, “Draining
the appliance”, pg. 10.
15.1 Draining the appliance
WARNING Burns
Hot water may escape during the draining process.
If is necessary to drain the cylinder for maintenance or to protect
the whole installation from freezing, proceed as follows:
f Close the shut-off valve in the cold water feed line.
f Open the DHW valves of all draw-off points until the appli-
ance is fully drained.
f Drain any residual water from the T&P relief valve.
15.2 Checking / replacing the sacrificial anode
f Check the sacrificial anode after the first year of use and re-
place if necessary.
f Next, decide the time intervals at which further checks
should be carried out.
15.3 Descaling
f Remove loose scale deposits from the water heater.
f If necessary, descale the inner cylinder with commercially
available descaling agents.
f Only descale the flange after disassembly and never treat the
cylinder surface and sacrificial anode with descaling agents.
15.4 Anti-corrosion protection
Ensure that while carrying out maintenance work the anti-cor-
rosion protection resistor (560 Ω) is not damaged or removed.
Reinsert the anti-corrosion protection correctly after replacement.
15.5 Replacing the power cable
DANGER Electrocution
The power cable must only be replaced (for example if
damaged) by a qualified technician.

ENGLISH
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INSTALLATION
ZĤ¼êÐ|ŒêĒĉ
15.6 Replacing the combined controller/limiter
D0000037142
21
1 Controller sensor
2 Limiter sensor
f Insert the controller sensor and the limiter sensor into the
sensor well as far as they will go.
16. Specification
16.1 Dimensions and connections
c01
c06
a10
100
a40
PSH 20 Plus PSH 30 Plus
a10 Appliance Height 36¼˝ (922 mm) 48⅜˝ (1229mm)
a40 Appliance Diameter 20˝ (510 mm) 20˝ (510 mm)
c01 Cold water inlet Male thread ¾˝ NPT male ¾˝ NPT male
Rear clearance 3¾˝ (95 mm) 3¾˝ (95 mm)
c06 DHW outlet Male thread ¾˝ NPT male ¾˝ NPT male
Rear clearance 3¾˝ (95 mm) 3¾˝ (95 mm)
i13
b01
a30
28
PSH 20 Plus PSH 30 Plus
a30 Appliance Depth 20½˝ (520 mm) 20½˝ (520 mm)
b01 Electrical cable
entry
Threaded fitting PG 16 PG 16
Height 2⅜˝ (61 mm) 2⅜˝ (61 mm)
i13 Mounting bracket Height 20½˝ (521 mm) 32½˝ (826 mm)
Wall mounting bracket
17ôÝ (450 mm)
16óÝ (415 mm)
14Ý(360 mm)
13ôÝ (350 mm)
11ôÝ (300 mm)
7óÝ (265 mm)

12 | PSH Plus www.stiebel-eltron-usa.com
INSTALLATION
ZĤ¼êÐ|ŒêĒĉ
16.2 Wiring diagram
L2
L1
2
1
34
5
67
8
1 Terminal
2 High limit safety cut-out
3 Temperature controller
4 ON/OFF indicator
5 Heating element
6 Resistor (560 Ω)
7 Anode
8 Cylinder
16.3 Heat-up diagrams
The heat-up time depends on the cylinder capacity, cold water
inlet temperature and heating output.
Graph assumes 59°F (15°C) cold water inlet temperature:
0
1
2
3
4
5
6
95 113 131 149 167
2
1
X Temperature setting [°F]
Y Heat-up time [h]
1 PSH 30 Plus
2 PSH 20 Plus

ENGLISH
www.stiebel-eltron-usa.com PSH Plus | 13
INSTALLATION
ZĤ¼êÐ|ŒêĒĉ
16.4 Data table
PSH 20 Plus PSH 30 Plus
Part number 235968 235969
Hydraulic data
Nominal capacity 21 gal (80 l)32 gal (120 l)
Mixed water volume 104°F [59°F-->149°F] (40°C [15°C-->65°C]) 37 gal (139 l)58 gal (221 l)
Water connections ¾˝ NPT ¾˝ NPT
Electrical data
Wattage 3.0 kW 3.0 kW
Rated voltage 220–240 V 220–240 V
Amperage draw 13.1 A 13.1 A
Phase 1/N/PE 1/N/PE
Frequency 50/60 Hz 50/60 Hz
Heat-up time, 59°F-->140°F (15°C-->60°C) 1.42 hr 2.14 hr
Application limits
Temperature setting range 86–167°F (30–75°C) 86–167°F (30–75°C)
Max. permissible pressure 150 psi (1.0 MPa)150 psi (1.0 MPa)
Test pressure 217 psi (1.5 MPa)217 psi (1.5 MPa)
Max. permissible temperature 203°F (95 °C)203°F (95 °C)
Max. flow rate 6.2 gpm (23.5 l/m)6.2 gpm (23.5 l/m)
Min./max. conductivity, drinking water 100–1500 μS/cm 100–1500 μS/cm
Energy data
Standby energy consumption/24hr at 149°F (65 °C) 0.729 kWh 1.073 kWh
Versions
IP rating IP25 IP25
Frost protection setting 42°F (27°C)42°F (27 °C)
Color white white
Dimensions
Height 34¼˝ (871 mm)48⅜˝ (1178 mm)
Depth 20½˝ (520 mm)20½˝ (520 mm)
Diameter 20˝ (510 mm) 20˝ (510 mm)
Weights
Weight, full 238.5 lb (108.2 kg)350.8 lb (159.1 kg)
Weight, empty 62.2 lb (28.2 kg)86.2 lb (39.1 kg)

14 | PSH Plus www.stiebel-eltron-usa.com
INSTALLATION
ZĤ¼êÐ|ŒêĒĉ
16.5 Spare parts
No. Spare part PSH 20 Plus PSH 30 Plus
1 Cap 510 322172 322172
2Screw 7981-3,9x22-C-Z
3Knob pl. 299865 299865
4Front sticker STE 328077 328077
5Glow lamp TBF/SLTS 321989 321989
6 Screw M4x6 B DIN 7985-4.8 A3F 2
7Thermostat GTLH 11 322943 322943
8Thermal fuse 298433 298433
9Heating element 3000 W 321979 321979
10 Flange gasket 315024 315024
11 Insulation ring 315038 315038
12 Union nut 315023 315023
13 Rubber bolt 268821 268821
14 Sacrificial anode 286093 286095
15 Anode gasket 286097 286097
16 Bushing pl. 270957 270957
17 Washer 125-A 8,4-140 HV-ZN
18 Nut I4035-M 8-05-ZN
19 Terminal block 10 E/3 309566 309566
20 Screw DIN 7981-2,9x22
21 Fitting PG 16 312207 312207
22 T&P valve 3/4˝ 294545 294545
23a Insulation T&P valve 80x68 323812 323812
23b Insulation T&P valve 80x68 326658 326658
24 Insulating sleeve 22x90 323811 323811
25 Resistor compl. 292907 292907
Cable loop 321988 321988
Insulating bushing 315540 315540

ENGLISH
www.stiebel-eltron-usa.com PSH Plus | 15
WARRANTY | ENVIRONMENT AND RECYCLING
!The installation, electrical connection and first operati-
on of this appliance should be carried out by a qualified
installer.
!The company does not accept liability for failure of any
goods supplied which have not been installed and ope-
rated in accordance with the manufacturer‘s
instructions.
Environment and recycling
Please help us to protect the environment by disposing of the
packaging in accordance with the national regulations for waste
processing.
Subject to the terms and conditions set forth in this limited
warranty, Stiebel Eltron, Inc. (the “Manufacturer”) hereby
warrants to the original purchaser (the “Owner”) that each
PSH Plus Domestic Hot Water Heater (the “Heater”) shall
not (i) leak due to defects in the Manufacturer’s materials
or workmanship for a period of six (6) years from the date
of purchase or (ii) fail due to defects in the Manufacturer’s
materials or workmanship for a period of two (2) years
from the date of purchase. As Owner’s sole and exclusive
remedy for breach of the above warranty, Manufacturer
shall, at the Manufacturer’s discretion, send replacement
parts for local repair; retrieve the unit for factory repair, or
replace the defective Heater with a replacement unit with
comparable operating features. Manufacturer’s maximum
liability under all circumstances shall be limited to the
Owner’s purchase price for the Heater.
This limited warranty shall be the exclusive warranty
made by the Manufacturer and is made in lieu of all other
warranties, express or implied, whether written or oral,
including, but not limited to warranties of merchantability
and fitness for a particular purpose. Manufacturer shall
not be liable for incidental, consequential or contingent
damages or expenses arising directly or indirectly from any
defect in the Heater or the use of the Heater. Manufacturer
shall not be liable for any water damage or other damage
to property of Owner arising, directly or indirectly,
from any defect in the Heater or the use of the Heater.
Manufacturer alone is authorized to make all warranties
on Manufacturer’s behalf and no statement, warranty or
guarantee made by any other party shall be binding on
Manufacturer.
Manufacturer shall not be liable for any damage
whatsoever relating to or caused by:
1. any misuse or neglect of the Heater, any accident to
the Heater, any alteration of the Heater, or any other
unintended use;
2. acts of God and circumstances over which
Manufacturer has no control;
3. installation of the Heater other than as directed by
Manufacturer and other than in accordance with
applicable building codes;
4. failure to maintain the Heater or to operate the Heater
in accordance with the Manufacturer’s specifications;
5. operation of the Heater under fluctuating or excessive
water pressure or in the event the Heater is supplied
with non-potable water, for any duration;
6. improper installation and/or improper materials used
by any installer and not relating to defects in parts or
workmanship of Manufacturer;
7. moving the Heater from its original place of installation;
8. exposure to freezing conditions;
9. water quality issues such as corrosive water, hard water,
and water contaminated with pollutants or additives;
10. not continuously supplying the unit with water aka
“dry-firing”.
Should Owner wish to return the Heater to Manufacturer
for repair or replacement under this warranty, Owner
must first secure written authorization from Manufacturer.
Owner shall demonstrate proof of purchase, including a
purchase date, and shall be responsible for all removal
and transportation costs. If Owner cannot demonstrate a
purchase date this warranty shall be limited to the period
beginning from the date of manufacture stamped on the
Heater. Manufacturer reserves the right to deny warranty
coverage upon Manufacturer’s examination of the Heater.
This warranty is restricted to the Owner and cannot be
assigned.
Some States and Provinces do not allow the exclusion
or limitation of certain warranties. In such cases, the
limitations set forth herein may not apply to the Owner. In
such cases this warranty shall be limited to the shortest
period and lowest damage amounts allowed by law. This
warranty gives you specific legal rights and you may also
have other rights which vary from State to State or Province
to Province.
Owner shall be responsible for all labor and other charges
incurred in the removal or repair of the Heater in the field.
Please also note that the Heater must be installed in such a
manner that if any leak does occur, the flow of water from
any leak will not damage the area in which it is installed.
This Warranty is valid for U.S.A. & Canada only. Warranties may vary
by country. Please consult your local Stiebel Eltron Representative for
the Warranty for your country.
17. Warranty

16 | PSH Plus www.stiebel-eltron-usa.com
TABLE DES MATIÈRES | D‘INFORMATION SPÉCIALE
D’INFORMATION SPÉCIALE
FONCTIONNEMENT
1. Généralités__________________________________________________ 18
1.1 Consignes de sécurité__________________________________________ 18
1.2 Autres symboles dans cette documentation ______________18
2. Sécurité _____________________________________________________ 18
2.1 Utilisation conforme ___________________________________________ 18
2.2 Consignes de sécurité générales ____________________________18
2.3 Symboles de test________________________________________________ 19
3. Inscrivez votre produit ____________________________________ 19
4. Description de l’appareil __________________________________ 19
5. Paramètres _________________________________________________ 19
5.1 Congé et absence _______________________________________________ 20
6. Nettoyage, entretien et maintenance ____________________ 20
7. Dépannage __________________________________________________ 20
INSTALLATION
8. Sécurité _____________________________________________________ 21
8.1 Consignes de sécurité générales ____________________________ 21
9. Description de l’appareil __________________________________ 21
9.1 Livraison standard______________________________________________ 21
9.2 Accessoires optionnels ________________________________________ 21
10. Préparations________________________________________________ 21
10.1 Site d’installation _______________________________________________ 21
10.2 Fixation de la feuille de support en contreplaqué _______ 22
10.3 Montage sur le contreplaqué_________________________________ 22
11. Installation__________________________________________________ 23
11.1 Raccordement de l’eau ________________________________________ 23
11.2 Source de courant ______________________________________________ 23
12. Mise en service_____________________________________________ 23
12.1 Mise en service__________________________________________________ 23
12.2 Remise en service ______________________________________________ 23
13. Mise hors____________________________________________________ 24
14. Dépannage__________________________________________________ 24
15. Entretien ____________________________________________________ 24
15.1 Vidange de l’appareil __________________________________________ 24
15.2 Contrôle / remplacement de l’anode sacrificielle ________24
15.3 Détartrage________________________________________________________ 24
15.4 Protection anti-corrosion _____________________________________ 25
15.5 Remplacement du câble d’alimentation ___________________ 25
15.6 Remplacement du régulateur / limiteur combiné________ 25
16. Spécification ________________________________________________ 25
16.1 Dimensions et raccordements________________________________ 25
16.2 Schéma de câblage_____________________________________________ 26
16.3 Diagrammes de réchauffement______________________________ 26
16.4 Tableau de données____________________________________________ 27
16.5 Pièces de rechange_____________________________________________ 28
17. Garantie _____________________________________________________ 29
D’INFORMATION
SPÉCIALE
- Utilisez uniquement une connexion permanente à
l’alimentation. L’appareil doit pouvoir être séparé
de l’alimentation électrique par un disjoncteur
qui déconnecte tous les pôles.
- Montez l’appareil comme décrit au chapitre 10
«Préparations», p. 21.
- Respectez la pression maximale admissible (voir
chapitre 16.4 «Tableau de données», p. 27).
- Vidanger l’appareil comme décrit au chapitre 15.1
«Vidange de l’appareil», p. 24.
- Dimensionner le drain de manière à ce que l’eau
puisse s’écouler sans soupape de entrave lorsque
la surpression T & P est complètement ouverte.
- Placer le tuyau de décharge de la soupape de sû-
reté T & P avec une pente constante et dans une
pièce exempte de gel.
- L’ouverture de décharge de la soupape de sécuri-
té doit rester ouverte dans l’atmosphère. Ne pas
plonger dans l’eau.

FRANÇAIS
www.stiebel-eltron-usa.com PSH Plus | 17
D‘INFORMATION SPÉCIALE
Plomberie suggéré pour PSH Plus
M
VB
1
2
3
4
5
6
7
8
9
10
11
12
13
Eau chaude
Eau froide
1 PSH Plus
2 Réducteur de pression (0.48 MPa [70 psi], requis, non fourni)
3 Clapet anti-retour (recommandé, non fourni)
4 Clapet à bille (recommandé, non fourni)
5 Vase d’expansion (requis, non fourni)
6 Disjoncteur à vide (requis, non fourni)
7 Robinet de vidange de la chaudière (recommandé) , non fourni)
8 Entrée d’eau froide
9 Sortie d’eau chaude
10 Soupape de décharge de température et pression (1.03 MPa [150 psi], fournie)
11 Vanne de mélange (recommandée, non fournie)
12 Bac de vidange PSH Plus (recommandé, non fourni, no. d’article 328651)
13 Drain

OPERATION
Généralités
18 | PSH Plus www.stiebel-eltron-usa.com
FONCTIONNEMENT
1. Généralités
Les chapitres intitulés « Renseignements spéciaux » et « Fonc-
tionnement » sont prévus pour les utilisateurs de l’appareil et les
entrepreneurs spécialisés.
Le chapitre « Installation » est à l’attention des entrepreneurs
spécialisés.
Remarque
Lisez attentivement ces directives avant d’utiliser l’ap-
pareil puis mettez-les de côté pour référence ultérieure.
Transférez ce document à toute personne qui utilisera
l’appareil.
1.1 Consignes de sécurité
1.1.1 Structure des consignes de sécurité
!MENTION D'AVERTISSEMENT: Nature du danger
Sont indiqués ici les risques éventuellement encourus
en cas de non-respect de la consigne de sécurité. Sont
indiqués ici les mesures permettant de pallier au dan-
ger.
1.1.2 Symboles, nature du danger
Symbole Nature du danger
Blessure
Électrocution
Brûlure
1.2 Autres symboles dans cette documentation
AVERTISSEMENT
Brûlures Remarque Les informations générales sont
identifiées par le symbole illustré à gauche.
f Lisez attentivement ces textes.
Symbole Signification
Endommagements de l'appareil et pollution de l'environ-
nement
Recyclage de l'appareil
2. Sécurité
2.1 Utilisation conforme
L’appareil est destiné au chauffage de l’eau chaude sanitaire et
peut fournir un ou plusieurs points de prélèvement.
Cet appareil est prévu pour un usage ménager, c’est-à-dire qu’il
peut être utilisé en toute sécurité par des personnes non formées.
Cet appareil peut également être utilisé en dehors d’un usage
ménager, par exemple dans une petite entreprise, tant que son
usage reste le même.
Tout autre usage au-delà de l’usage décrit sera jugé inapproprié.
L’usage correct comprend également le respect de ces directives
et de toutes les directives relatives aux accessoires utilisés de
concert avec cet appareil.
L’observation de ces instructions et des instructions concernant les
éventuelles consignes de mises à jour des fait également partie
de l’utilisation correcte de cet appareil.
!ATTENTION
Pour réduire le risque de pression et de température
excessives dans ce chauffe-eau, installez un équipe-
ment de protection de la température et de la pression
requis par les codes locaux et une soupape de décharge
combinée certifiée par un laboratoire d’essai l’équipe-
ment ou les matériaux, répondant aux exigences rela-
tives aux soupapes de sûreté et aux dispositifs d’arrêt
automatique du gaz pour les systèmes d’alimentation
en eau chaude, ANSI Z21.22.
La soupape doit être marquée avec une pression maxi-
male fixée pour ne pas dépasser la pression de ser-
vice maximale indiquée du chauffe-eau, et orienter ou
fournir une tubulure de sorte que toute décharge de la
soupape ne dépasse pas de plancher structurel et ne
touche aucune pièce électrique sous tension. L’ouver-
ture de décharge ne doit en aucun cas être obstruée
ou réduite.
2.2 Consignes de sécurité générales
AVERTISSEMENT Brûlures
Pendant le fonctionnement, le robinet et la soupape de
surpression T & P peuvent atteindre des températures
supérieures à 60 ° C (140 ° F).
Il existe un risque de brûlure à des températures de
sortie supérieures à 43°C (109° F).
!PERTES MATÉRIELLES
L’utilisateur doit isoler les conduites d’eau et la sou-
pape de sûreté T & P pour les protéger du gel.
!
!

OPERATION
Inscrivez votre produit
FRANÇAIS
www.stiebel-eltron-usa.com PSH Plus | 19
REMARQUE
L’appareil est sous pression. Pendant le processus de
réchauffement, l’eau se dilatera et la pression aug-
mentera. Sans vase d’expansion, l’eau s’égouttera de
la soupape de surpression T & P.
f Assurez-vous qu’un vase d’expansion est
installé en ligne avec le chauffe-eau.
f Si l’eau continue à couler à la fin du chauf-
fage, veuillez en informer l’installateur.
2.3 Symboles de test
Reportez-vous à la plaque signalétique de l’appareil pour obtenir
des informations sur les tests et les détails de la certification.
3. Inscrivez votre produit
Vous devez inscrire votre produit dans les 90 jours qui
suivent la date d’achat sur notre site internet pour ac-
tiver la garantie normale ou pour pouvoir réclamer la
garantie prolongée, Rendez-vous à notre site internet
à l’adresse suivante :
www.stiebel-eltron-usa.com et cliquez sur « Regis-
ter Your Product » (inscrivez votre produit).
Avant de lancer le processus d’inscription, nous vous conseillons
d’avoir à portée de main la documentation nécessaire, à savoir.
Modèle (Exemple: PSH 20 Plus):
Numéro apparaissant après « Nr, »:
Lieu d’achat:
Date d’achat:
Prénom et nom de famille:
Adresse courriel:
Adresse postale:
Numéro de téléphone:
En cas de questions à propos du processus d’inscription ou des
options pour la garantie, veuillez contacter Stiebel Eltron USA
directement en composant le (800)-582-8423.
4. Description de l’appareil
L’appareil chauffe l’eau chaude sanitaire à l’aide d’un élément de
résistance électrique. Vous pouvez ajuster la température à l’aide
du bouton de température. L’eau est chauffée automatiquement
à la température requise.
Le cylindre en acier interne est recouvert d’émail spécial “Co Pro”
et est équipé d’une anode sacrificielle. L’anode protège l’intérieur
du réservoir de la corrosion. Lorsque l’anode sacrificielle sera
usée, elle devra être remplacée.
Protection antigel
L’appareil est également protégé contre le gel par le réglage de
température “*”, à condition que l’appareil soit alimenté. L’appa-
reil s’allume si nécessaire et chauffe l’eau pour éviter le gel. La
mesure de protection contre le gel ne protège pas les conduites
d’alimentation en eau et la soupape de sûreté T & P contre le gel.
12
1 Embout de sortie d’eau chaude
2 Embout d’entrée d’eau froide
5. Paramètres
La température peut être librement ajustée. Il est réglé en usine
à 52°C (125°F).
Tournez le bouton dans le sens des aiguilles d’une montre pour
augmenter le réglage de la température et dans le sens inverse
pour le diminuer.
max
D0000037146
2
1
34
5
1 Indicateur ON / OFF
2 Bouton de température
3 Protection antigel
4 Position d’économie d’énergie recommandée, mise à
l’échelle faible, 60°C (140 °F)
5 Réglage de la température maximale 75 °C (167°F)
Selon le système, les températures d’eau réelles aux points de
prélèvement peuvent être inférieures à la valeur définie.

20 | PSH Plus www.stiebel-eltron-usa.com
INSTALLATION
Nettoyage, entretien et maintenance
AVERTISSEMENT Brûlures
Il existe un risque de brûlure à des températures de
sortie dépassant 43°C (109°F). Le réglage de la tempé-
rature au-dessus de 125°F (52°C) n’est pas recomman-
dé sans l’installation d’une vanne mélangeuse.
Indicateur ON / OFF
L’indicateur ON / OFF s’allume lorsque de l’eau est en train d’être
chauffée.
5.1 Congé et absence
f Si l’appareil ne doit pas être utilisé pendant quelques jours,
placez le bouton de réglage de la température entre la pro-
tection antigel et les réglages d’économie d’énergie.
f Si l’appareil ne doit pas être utilisé pendant une période pro-
longée, réglez-le sur protection antigel pour économiser de
l’énergie. S’il n’y a pas de risque de gel, vous pouvez débran-
cher l’appareil de l’alimentation électrique.
f Pour protéger contre les légionelles, chauffez l’eau une fois à
60°C (140°F) avant d’utiliser à nouveau de l’eau chaude.
6. Nettoyage, entretien et
maintenance
f Faites vérifier régulièrement la sécurité électrique de l’ap-
pareil et la fonction de la soupape de sûreté T & P par un
technicien qualifié.
f Faites vérifier l’anode sacrificielle par un technicien qualifié
après la première année. Le technicien qualifié doit alors
déterminer les intervalles auxquels il doit être vérifié par la
suite.
f N’utilisez jamais de produits nettoyants abrasifs ou corro-
sifs. Un chiffon humide suffit pour nettoyer l’extérieur de
l’appareil.
Mise à l’échelle
f Presque tous les types d’eau déposent de la chaux à haute
température. Cela s’installe à l’intérieur de l’appareil et
affecte à la fois les performances et la durée de vie. Les élé-
ments chauffants doivent donc être détartrés de temps en
temps. Un technicien qualifié, connaissant la qualité de l’eau
locale, vous indiquera le prochain service. Contactez le four-
nisseur d’eau ou l’inspecteur de plomberie local pour plus
d’informations.
f Vérifiez régulièrement les robinets. Vous pouvez éliminer les
dépôts de calcaire au niveau des sorties à l’aide d’agents de
détartrage disponibles dans le commerce.
f Activer régulièrement la soupape de sûreté T & P pour évi-
ter qu’elle ne soit bloquée, par exemple par des dépôts de
calcaire.
7. Dépannage
Problème Cause Remède
L’eau ne chauffe pas et le
témoin ON / OFF ne s’al-
lume pas.
Il n’y a pas de pouvoir. Vérifiez les fusibles /
disjoncteurs dans votre
boîte à fusibles.
L’eau ne chauffe pas suf-
fisamment et l’indicateur
ON / OFF est allumé.
La température est trop
basse.
Sélectionnez une tempé-
rature plus élevée.
L’appareil chauffe, par
exemple, après avoir
prélevé de grandes
quantités d’eau chaude.
Attendez que le témoin
ON / OFF s’éteigne.
Le débit est faible. L’aérateur du robinet ou
de la pomme de douche
est mis à l’échelle ou
contaminé.
Nettoyez et / ou détartrez
l’aérateur ou la pomme
de douche.
Appelez un installateur si vous ne réussissez pas à éliminer la
cause. Donnez-lui le numéro indiqué sur la plaque signalétique
pour qu’il puisse vous aider plus rapidement et plus efficacement
(000000-0000-000000):
Technical data
Datos técnicos
Données techniques
Made in EU
Hecho en EU
Fabriqué en EU
Volume:
Volumen:
Volume:
1 MPa / 145 PSI
Max. pressure:
Presión máxima:
Pression max:
PSH XX Plus
M-NO.: 000000
S-NO.: 0000-000000
Supply:
Alimentación:
Alimentation:
220-240 V AC, 60 Hz
SINGLE PHASE L-L ONLY
Power:
Potencia:
Puissance:
Standby loss:
Pérdida de calor:
Pertes en mode de veille:
1,5 MPa / 217 PSI
Testing pressure:
Presión de prueba:
Pression d'essai: