STIEBEL ELTRON Accelera 300 User manual

OPERATING AND INSTALLATION
OPERACIÓN E INSTALACIÓN
UTILISATION ET INSTALLATION
DHW HEAT PUMP WATER HEATER
CALENTADOR DE AGUA CON BOMBA ELÉCTRICA DE CALOR
CHAUFFE-EAU THERMODYNAMIQUE
» ACCELERA® 300
STIEBEL ELTRON Inc.
17 West Street | West Hatfield MA 01088
Tel. [phone] | Fax [phone]
Email [e-mail]
www.stiebel-eltron-usa.com
The Accelera®300 Heat
Pump Water Heater is
tested and certified by WQA
against NSF/ANSI372 for
lead free compliance.

2 | ACCELERA® 300 HEAT PUMP WATER HEATER WWW.STIEBEL-ELTRON-USA.COM
GENERAL INFORMATION
QUICK START-UP GUIDE
GENERAL INFORMATION
Please read Read these instructions carefully and retain them for
future reference. If the water heater is passed on to
a third party please hand these instructions to the
new user.
This manual includes important information regarding the safe
and efficient handling of the water heater. Keep this manual with
the water heater at all times.
Work must only be carried out by a licensed installer who has read
and understands these instructions. All federal, state, and local
codes must be followed. Failure to do so may result in equipment
failure, serious injury, or death.
While working on the water heater, disconnect the power supply.
Illustrations in these instructions are designed to aid a general
understanding and may deviate from the actual water heater
version. No claims can be derived from such illustrations.
Limited liability:
We have collated all details and information in this manual in due
consideration of applicable standards and regulations, the state of
the art and our long-term know-how and experience.
Losses due to the following are excluded from our liability:
- Non-observance of these instructions
- Incorrect use
- Installation of the water heater by unqualified personnel
- Unauthorized modifications
- Technical modifications
- Use of unauthorized spare parts
Copyright:
These operating and installation instructions are subject to
copyright.
Transferring these instructions to third parties, copying of any
kind, either in total or extracts therefrom, as well as their use
and/or conveying its contents are prohibited without our written
consent.
Contraventions are liable to claims for compensation. Further
claims are reserved.
We hold the copyright:
STIEBEL ELTRON Inc.
17 West Street | West Hatfield MA 01088
Tel. [phone] | Fax [phone]
Email [e-mail]
www.stiebel-eltron-usa.com
Should you have any question regarding the installation or
operation of the water heater, please contact our customer service.
Tel. (USA) 800-582-8423 or 413-247-3380
Please record your serial number and information
Serial No.:
____________________________________________________________________
Date of Purchase: ____________________________________________________________
Accelera®300 Quick Start-up Guide
A. OVERVIEW: This water heater hooks up like any other electric water heater, with a few minor exceptions. Be sure to follow
all state and local codes during installation. This page is not intended to be a substitute for the installation manual. Be
sure to follow all safety precautions.
B. UNPACKING: DO NOT unpack water heater unit until it is located at the point of installation. Follow all instructions in the
manual and be sure to use caution, as this unit is top heavy. DO NOT lay the unit down and DO NOT jar or tip the unit past
45 degrees on the hand truck. See: 10.6
C. INSTALLATION / WATER:
a. Location: Find a suitable location according to the manual. Minimum area is 10’ x 10’ x 8’. Be sure vents are parallel to
the wall with the fan facing the most open area along that wall. Please note: a drain pan is recommended. See: 10.6
b. 3/4” Inlet from union provided. For hook-up, follow all state and local codes for check valves, expansion tanks, shut off
valves, gauges, etc. Install a 70 psi pressure reduction valve.
Please note: water pressure should not exceed 0.48 MPa (70 psi). See: 10.7
c. 3/4” Outlet from union to hot water line.
d. Install T&P Relief valve (supplied). Please note: 0.69 MPa / 99 °C (100 psi / 210 °F).
D. CONDENSATE DRAIN: Goes directly into a drain or use a condensate pump to drain into a suitable location. See: 10.6.1
E. FILL & FLUSH TANK: Run water and be sure tank is full prior to turning on the electricity.
F. INSTALLATION / ELECTRICAL: Use a 240 Volt / 15 Amp double pole breaker and connect to water heater L1, L2, and
Ground. See: 16.2
!
WITHIN ABOUT 5 HOURS OF START-UP TIME, EXHAUST AIR FLOW SHOULD BE APPROXIMATELY -14,4°C (6°F)
LESS THAN THE INLET SIDE. CAUTION: RISK OF SCALDING.
THERE IS A RISK OF SCALDING AT OUTLET
TEMPERATURES EXCEEDING 43°C (110°F) RISK OF
SCALDING

WWW.STIEBEL-ELTRON-USA.COM ACCELERA 300 | 3
QUICK START-UP GUIDE| OPERATION
REQUIRED ROOM DIMENSIONS AND CLEARANCES
15 ¾˝ (0.4 m)
2´ (0.6 m)
8˝ (0.2 m)
6´ (1.8 m)
Air flow
intake
Air flow
intake
Air flow
exhaust
Air flow
exhaust
2´ (0.6 m)
2´ (0.6 m)
2´ (0.6 m)
Air flow
intake
Air flow
exhaust
6´ (1.8 m)
Minimum room
volume: 800 ft2
(10´ x 10´ x 8´)
Acceptable positioning, vent parallel side wall:
Acceptable positioning, vent towards room center:
D0000018502
›Do not install in a room with
less than 800 cubic feet of
total volume (for example:
10 ft. x 10 ft. x 8 ft.).
›Do not install with the air
exhaust pointing at a wall
or any surface closer than 6
feet away.
›Do not install with the air
intake pointing to a wall or
any surface closer than 2
feet away.
Failure to follow installation
instructions will void the
factory warranty.

ENGLISH
4 | ACCELERA® 300 HEAT PUMP WATER HEATER WWW.STIEBEL-ELTRON-USA.COM
QUICK START-UP GUIDE| OPERATION
H
M
C
Cold water
Hot water
2
12 15
13
14
11
3
4
567
89
10
1
1 Vacuum breaker
2 Hot water connection (Union adaptor to 3/4")
3 Mixing valve (optional, supplied by installer)
4 Connection for T&P valve ¾"
5 T&P valve ¾", 0.69 MPa @99 °C (100 psi @210 °F) (supplied with unit)
6 0.551 MPa (80 psi) relief valve (optional, supplied by installer)
7 Expansion tank (optional, supplied by installer)
8 Straight-through shut-off valve (supplied by installer)
9 Check valve (optional, supplied by installer)
10 0.48 MPa (70 psi) pressure reduction valve (optional, supplied by installer)
11 Cold water connection (with Union adaptor to 3/4")
12 Condensate drain (elbow supplied with unit)
13 Drain valve (supplied by installer)
14 Drain pan (supplied by installer)
15 Condensate spillover

ENGLISH
WWW.STIEBEL-ELTRON-USA.COM ACCELERA® 300 HEAT PUMP WATER HEATER |5
CONTENTS | OPERATION
GENERAL INFORMATION��������������������������������������������2
QUICK START-UP GUIDE ��������������������������������������������3
OPERATION ����������������������������������������������������������6
1. Overview ����������������������������������������������������6
2. General information ����������������������������������������7
2.1. Key to symbols ___________________________________________________ 7
3. Safety ������������������������������������������������������ 10
3.1. General safety instructions ___________________________________ 10
3.2. Intended use_____________________________________________________ 10
3.3. Incorrect use_____________________________________________________ 10
3.4. Personnel qualification________________________________________ 10
3.5. Safety equipment _______________________________________________ 10
3.6. Particular risks __________________________________________________ 10
4. Water heater description��������������������������������� 11
4.1. Function description ___________________________________________ 11
5. Operation �������������������������������������������������� 11
5.1. Initial start-up by a licensed installer ______________________ 11
5.2. Starting and stopping__________________________________________ 11
5.3. Emergency stop _________________________________________________ 11
6. Maintenance and care������������������������������������ 11
6.1. Descaling _________________________________________________________ 12
7. What to do if ... ������������������������������������������� 12
7.1. ... the water heater does not deliver hot water___________ 12
7.2. ... the safety valve of the cold water supply line is
dripping __________________________________________________________ 12
7.3. ... the condensate drain drips________________________________ 12
7.4. ... the power consumption is too high______________________12
7.5. ... the room temperature drops excessively_______________12
7.6. ... other faults occur____________________________________________12
8. Safety ������������������������������������������������������ 13
8.1. General safety instructions ___________________________________13
8.2. Incorrect use_____________________________________________________ 13
8.3. Qualification _____________________________________________________ 13
8.4. Instructions, standards and regulations ___________________ 13
8.5. Water installation_______________________________________________13
8.6. Electrical installation___________________________________________13
9. Water heater description��������������������������������� 14
9.1. Standard delivery_______________________________________________ 14
9.2. Special accessories _____________________________________________ 14
10. Transport �������������������������������������������������� 15
10.1. Transport in a horizontal position___________________________ 15
11. Installation ������������������������������������������������ 15
11.1. Installation location ____________________________________________ 15
11.2. Shipping inspection ____________________________________________ 15
11.3. Handling__________________________________________________________ 15
11.4. Storage____________________________________________________________ 16
11.5. Positioning the water heater _________________________________ 16
11.6. Unpacking the water heater__________________________________ 16
11.7. Removing the transport lock _________________________________ 18
11.8. Condensate drain _______________________________________________ 19
11.9. Water connection _______________________________________________ 19
11.10. Power supply: 240V / 15A double pole circuit breaker__20
12. Initial start-up �������������������������������������������� 22
12.1. Initial start-up___________________________________________________ 22
12.2. Shutting down___________________________________________________ 22
12.3. Restarting ________________________________________________________ 22
13. Settings ���������������������������������������������������� 22
13.1. Adjusting the water temperature____________________________ 22
14. Water heater hand over ���������������������������������� 22
15. Troubleshooting������������������������������������������� 22
15.1. Safety equipment of the water heater______________________ 22
15.2. Troubleshooting_________________________________________________ 23
16. Maintenance and cleaning ������������������������������� 23
16.1. Cleaning the evaporator ______________________________________ 21
16.2. Draining the tank _______________________________________________ 21
16.3. Sacrificial anode rod ___________________________________________ 21
16.4. Descaling _________________________________________________________ 24
16.5. Checking valves _________________________________________________ 25
17. Specification����������������������������������������������� 26
17.1. Connection and dimensions __________________________________ 26
17.2. Wiring diagram _________________________________________________ 27
17.3. Refrigerant diagram ___________________________________________ 28
17.4. Technical Data ___________________________________________________ 29
ENVIRONMENT AND RECYCLING ��������������������������������� 30
WARRANTY�������������������������������������������������������� 31
ENGLISH

OPERATION
OvERvIEW
6 | ACCELERA® 300 HEAT PUMP WATER HEATER WWW.STIEBEL-ELTRON-USA.COM
1. Overview
Front of the water heater
7
6
2
5
4
3
1
26_03_01_1338
44
8
1 Water heater cover
2 Opening for PT valve
3 Condensate drain
4 Leveling feet
5 Cold water inlet
6 Hot water outlet
7 Air entry
8 Condensate spillover
An 80 gallon water tank is part of the water heater. Foam insulation
is applied to the outside of the water tank to prevent heat losses.
The water heater casing is made from powder-coated sheet steel.
The internally enameled water tank is supported by three height-
adjustable anti-vibration leveling feet.
OPERATION Back of the water heater
910
26_03_01_1337
9 Air discharge
10 Entry for the power cable
11 Information labels, serial no.:
11

OPERATION
GENERAL INFORMATION
ENGLISH
WWW.STIEBEL-ELTRON-USA.COM ACCELERA® 300 HEAT PUMP WATER HEATER |7
2. General information
The chapter Operation is intended for users and licensed installers.
The chapter Installation is intended for licensed installers only.
2.1 Key to symbols
2.1.1 Layout of safety information
DANGER Electric shock Before any work on the water heater,
disconnect all poles from the power
supply.
13
4
2
1 Symbol (see chapter "Symbols")
2 Keyword (see chapter "Keywords")
3 Designations (see chapter "Symbols")
4 Information text
2.1.2 Symbols
Symbol Description
Injury
Electrocution
Burns or scalding
!Other situations
Fire
Explosion
Water heater disposal
2.1.3 Keywords
KEYWORD
DANGER The keyword DANGER indicates information
that must be observed, otherwise serious injury
or death
will result.
WARNING The keyword WARNING indicates information
that must be observed, otherwise serious injury
or death
may result.
CAUTION The keyword CAUTION indicates information
that must be observed, otherwise relatively
serious or light injuries may result.
2.1.4 Symbols in this documentation
Read the text next to this symbol carefully.
»Passages with the symbol "»" indicate that you have to do
something. The action you need to take is described step by
step.
- Passages with this symbol "–" indicate lists.
2.1.5 Units of measure in this documentation
The dimensions in this document are given in millimeters (inches).
2.1.6 Information on the packaging
Information label "Top heavy"
AO 085 / Created with Adobe Illustrator CS
Benennung:
Description:
Mat.Nr.:
Ident.No.:
Bearb.:
Editor:
Gepr.:
Checked:
Datum:
Date:
Änd.-Index:
Mod.-index:
Datum:
Date:
Datum:
Date:
Ersatz für:
Substitute:
V / ZV:
Manifold.:
Format:
Size:
Maßstab
Measuring rod:
Blatt:
Page:
Herausgabe Index:
Actual Index:
Materialart:
Type of material:
Klassifizierung:
Classification:
Für diese Zeichnung behalten wir uns alle Rechte vor. Schutzvermerk nach
DIN ISO 16016 beachten. Änderungen von Seiten des Lieferanten bedürfen
der vorherigen Genehmigung durch STIEBEL ELTRON
For this drawing we reserve ourselves all rights to protection note
DIN ISO 16016 pay attention. Change from the supplier need the previous
approval by STIEBEL ELTRON.
Herstellnummer:
Date of manufacturing:
Lfd. Nummerierung / Start:
Upcounting number / Start:
Material:
Material:
Norm gepr.:
Norm check:
Roh
1 / 1
A3
1 : 1
EWN 801
000001
165123
264623
Afkl Hinw Transport
Haibach
Hoersting
__
28.06.04
28.06.04
_
K_______.__.__
20 / 15
K33631
23700000
Transportation Information Sticker
! !
Hoher Schwerpunkt
High balance point
Hoog zwaartepunt
Centre de gravité en partie haute
Hög tyngdpunkt
Alto centro di graviá
Alto centro de gravedad
Achtung - Attention - Attentie - Attention
Uppmärksamhet - Oppmerksomhet
Attenzione - Atención
264623/K33631
264623-33631
Information label "Vertical transport"
! Achtung - Attention !
Transport und Aufstellung
Damit das Gerät vor Beschädigungen geschützt ist, sollte es bis an den Montageort in der Verpackung transportiert werden.
Gerät senkrecht transportieren! Bei
beengten Transportbedingungen kann das Gerät auch kurzzeitig geneigt werden. Beachten Sie die weiteren Hinweise zum Aufstellen und Ausrichten des Gerä
-
tes in der beiliegenden Gebrauchs- und Montageanweisung um Schäden am Gerät zu vermeiden.
Transport and installation
To protect the equipment against damage, it must be transported inside its dedicated packaging until the installation facility is arrived.
Transport the equipment
upright.
Where space is restricted, you may also move briefly the equipment tipped backwards at an angle.. Observe the notes on installation and fitting of the
equipment, which can be found in the enclosed installation and operating instructions, to avoid possible damage to the equipment.
280306-34594
Gerät nur senkrecht oder ggf. geneigt transportieren.
Move this machine only in a vertical position or, if required, slightly inclined with the control facia point up.
280306-34594

OPERATION
GENERAL INFORMATION
8 | ACCELERA® 300 HEAT PUMP WATER HEATER WWW.STIEBEL-ELTRON-USA.COM
2.1.7 Information on the water heater
1
2
4
3
26_03_01_1355
3
1 General information label
2 Information label "Relief valve"
3 Information label "Connection"
4 Information label "Cold water inlet"
BURN
CAUTION
DANGER
!
HOT
Powersupply
Disconectpower supply
Beforeopeningthe c over
!Attention!
Mustconnect to
240V, 15 A
Double-pole
Circuitbreaker
ES:Sistemaherméticamentecerrado que contiene gases de efecto invernadero mencionados en el protocolo de Kioto.
BG:Съдържапосоченитев Протокола от Киото флуорирани парникови газове - херметически затворена система.
299581-36960 7
9
26_03_01_1356
6
5
5 Type plate
6 Information label "Power connection"
7 Information label "Fluorated gases"
8 Information label "Risk of scalding"
9 Information label "Energy efficiency"
1 Information label "Condensate drain"
This label shows you the position where the water heater drain
is located.
Drain
280302-3481284594
280302-34812.
2 Information label "Risk of scalding"
BURN
HOT
CAUTION
DANGER
!
284760-34684
284760-34684.
3 Information label "Connection"
For reason
of
corrosion
protection
use flat
gasket ring
280305-35826
280305-35826
8

OPERATION
GENERAL INFORMATION
ENGLISH
WWW.STIEBEL-ELTRON-USA.COM ACCELERA® 300 HEAT PUMP WATER HEATER | 9
4 Information label "Hot water outlet"
WW Austritt
D
HW outlet
280304-346845
280304-34684
5 Information label "Relief valve"
Warning
A
temperature and pressure relief valve
m
ust be fitted to the clearly marked
s
ocket. The valve drain outlet pipe
m
ust not be sealed or blocked, and the
v
alve easy gear is to be operated
a
t least once every six month.
280558-34684
280558-34684
6 Information label "Relief valve installation location"
R
elief valve
P
lumber:
T
he relief valve installation
m
ust be fitted to this socket.
280557-35826
280557-35826
7 Information label "Cold water inlet"
K
W Eintritt
C
W Inlet
280303-346845
280303-34684
8 Information label "Power connection"
Power supply
D
isconnect power supply
b
efore opening the cover.
280556-3468425
280556-34684
9 Type plate
Type: Accelera 300/WHP 300Order-No.: 222423
Observe the installation manual! Tested for leaks!
Made in Germany
No.: xxxx / xxxxxx
*222423xxxxxxxxxxxx*
26_03_01_1357
10 Information label "Fluorated gases"
DE: Enthält vom Kyoto - Protokoll erfasste fluorierte Treibhausgase - hermetisch geschlossenes System.
GB: Contains fluorinated greenhouse gases covered by the Kyoto Protocol - hermetically sealed.
FR: Comprend les gaz à effet de serrefluorés enregistrés par le protocole de Kyoto - systèmes hermétiquement scellés.
NL: Bevat gefluoreerde broeikasgassen die onder het Kyoto-protocol vallen - hermetisch gesloten systeem.
SE: Innehåller av Kyoto - protokollet registrerade flourerande växthusgaser i hermetiskt förslutna system.
PL: Zawiera fluorowane gazy cieplarniane ujęte w Protokole z Kioto - hermetycznie zamknięty układ.
CZ: Obsahuje fluorizované skleníkové plyny, obsažené v Kjótském protokolu - hermeticky uzavřený systém.
ES: Sistema herméticamente cerrado que contiene gases de efecto invernadero mencionados en el protocolo de Kioto.
DK: Indeholderfra Kyoto-protokollen registrerede, fluorerede drivhusgasser – hermetisk lukket system.
NO: Inneholderfluorerte drivhusgasser som omfattes av Kyotoprotokollen - hermetisk lukket system.
FI: Sisältää Kioton sopimuksen alaisia fluorattuja kasvihuonekaasuja - ilmatiiviisti suljettu järjestelmä. 284436-34741
BG: Съдържа посочените вПротокола от Киото флуорирани парникови газове - херметически затворена система.
HU: A Kiotói Jegyzıkönyv szerinti fluortartalmú üvegházhatású gázokat tartalmaz - hermetikusan zárt rendszer.
IT: Contiene gas fluorurati ad effetto serra disciplinati dal protocollo di Kyoto - Impianto ermeticamente chius.
RO: Conține un sistem închis ermetic contra emisiei de gaze fluorine monitorizat de protocolul Kyoto.
26_03_01_1386
11 Information label "Energy efficiency"
282980-36142
Maintain the legibility of all information labels. Illegible safety information and symbols can result in
dangerous situations.

OPERATION
SAFETY
10 | ACCELERA® 300 HEAT PUMP WATER HEATER WWW.STIEBEL-ELTRON-USA.COM
3. Safety
This chapter provides an overview of all important actions required
for a safe and trouble-free operation.
3.1 General safety instructions
Operate the water heater only when fully installed and with all
safety equipment in place.
Unsuitable tools or incorrect handling can result in damage to
the water heater.
DANGER Scalding
The water is heated inside the water tank to60°C
(140 °F). There is a risk of scalding at outlet
temperatures above 43 °C (109°F).
»Ensure that outflowing water does not directly
contact your body.
CAUTION Injury
Where children or persons with limited physical,
sensory or mental capabilities are allowed to control
this water heater, ensure that this will only happen
under supervision or after appropriate instruction by
a person responsible for their safety.
»Children should be supervised to ensure that they
never play with the water heater.
Never place any objects on top of the water heater.
Objects placed on top of the water heater can increase
the noise level developed by the water heater through
vibrations.
Never cover the water heater.
The water heater draws in air. Covering the inlet slots
reduces the air intake. This reduces the efficiency of
the water heater and can even lead to one of the safety
devices interrupting the water heater operation.
3.2 Intended use
This water heater produces hot water automatically.
The water heater can be installed and operated in the open as well
as in enclosed spaces. The temperature of the air that is drawn in
during operation must not fall below 6°C (43°F).
Any other use beyond that described shall be deemed inappropriate.
Observation of these instructions is also part of the correct use of
this water heater.
Any changes or modifications to this water heater void all warranty
rights.
3.3 Incorrect use
The following are not permitted:
- Do not heat anything other than potable water
- Do not use unqualified (unlicensed) personnel for installation
- Do not use in an environment with greasy extract air
This water heater must not be operated at ambient temperatures in excess of 42°C (107°F) or below 6°C
(43°F).
If outside air is directly drawn in ensure, that the
water heater is isolated from its power supply when
the air temperature falls below 6°C (43°F).
3.4 Personnel qualification
DANGER Injury
Incorrect handling can result in severe injuries and
material losses. Inadequately qualified personnel
cannot assess the potential risks.
Have the installation, initial start-up, maintenance
and repair steps carried out only by the qualified
individuals specified in the respective chapters.
In the remainder of this manual, such qualified individuals will be
described as the "licensed installer."
3.5 Safety equipment
Wear safety shoes/boots during the transportation and positioning
of the water heater. Dry, this water heater weighs 130kg (290 lb).
Safety shoes/boots reduce the risk of injury.
3.6 Particular risks
3.6.1 Electric current
WARNING Electric shock
Contacting parts that carry live power is associated
with a direct risk to life. Damaging the insulation or
individual components can result in a risk to life.
»If you detect damaged insulation, immediately
switch off the power supply and arrange for the
necessary repair.
»Have all electrical work carried out by a qualified
electrician.
3.6.2 Hot surfaces
CAUTION Burning
Contact with hot components can result in burning.
»When working near hot components, wear
protective clothing and gloves.
»The pipework connected to the hot water outlet of
the water heater can reach temperatures in excess
of 60 °C (140°F).
3.6.3 Refrigerant
The water heater is filled with R134A refrigerant at the factory.
WARNING Freezer burn
Should the water heater leak refrigerant, avoid contact
with the refrigerant or breathing in any released
vapors. Immediately vent the room.
In normal water heater operation, the refrigerant is contained in
a sealed circuit.