Bosch 660 EF Specifications

660 EF/EFO
INDOOR MODEL/OUTDOOR MODEL
Installation must conform with local codes, or in the absence of local codes, the National Fuel Gas Code,
ANSI Z223.1/NFPA 54.
When applicable, installation must conform with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part
3280 or the Canadian Standard CAN/CSA-Z240 MH Mobile Homes, Series M86. (660 EFO only)
INDOOR MODEL 660 EF- Natural Gas/Liquefied Petroleum (LP) Gas
OUTDOOR MODEL 660 EFO- Natural Gas/Liquefied Petroleum (LP) Gas
6 720 644 063 (2010/03) US/CA
Warning: If the information in this manual is not
followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. Refer to this manual. For
assistance or additional information consult a
qualified installer, service agency or the gas
supplier.
In the Commonwealth of Massachusetts this
product must be installed by a licensed plumber or
gas fitter.
Upon completion of the installation, these
instructions should be handed to the user of the
appliance for future reference.
SBA8517
What to do if you smell gas
• Close gas valve. Open windows.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor’s
phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire
department.
• Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
Index
Index
1
Important Safety Information
2
2.1
2.2
2.3
2.4
2.5
Appliance details
Features
Specifications (Technical data)
Before Installation
Dimensions (660 EF)
Dimensions (660 EFO)
7
7
8
9
10
10
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
Installation instructions
Specialized tools
Introduction
Venting (660 EF only)
Combustion air requirements
Choosing Installation Site
Installation Clearances
Installation
Gas piping
Water piping
Water Treatment
Plumbing Applications
11
11
11
11
15
17
18
19
21
24
25
27
4
4.1
4.2
4.3
Electrical Wiring
Electrical wiring
Remote Controller
Remote Controller Installation Guide
28
28
29
30
5
5.1
5.2
5.3
33
33
33
5.4
Operation instructions
Trial Operation
Initial Operation
How to Use
(Not using the remote controller)
How to Use (Using the remote controller)
34
35
6
6.1
6.2
Maintenance and service
Regular Maintenance
Preventing Damage from Freezing
37
37
38
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
Troubleshooting
Initial Operation
Temperature
Amount of Hot Water
Remote Controller
Sounds
Others
Check for an Error Code
(Using the remote controller)
40
40
40
41
42
42
43
2
3
8
8.1
8.2
Follow- up Service
Requesting Service
Gas conversion
45
45
45
9
9.1
9.2
Interior components diagram
660 EF Interior components
660 EFO Interior components
46
46
47
10
Protecting the environment
48
11
Limited Warranty
49
44
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Important Safety Information
1
Important Safety Information
To prevent damage to property and injury to the user,
the icons shown below will be used to warn of varying
levels of danger. Every indication is critical to the safe
operation of the water heater and must be understood
and observed. Potential dangers from accidents during
installation and use are divided into the following four
categories. Closely observe these warnings; they are
critical to your safety.
Icons warning of risk level
This is the safety alert symbol. It is used
to alert you to potential personal injury
hazards. Obey all safety messages that
follow this symbol to avoid possible
injury or death.
Attention Installers
• In order to use the water heater safely, read this
installation manual carefully, and follow the installation instructions.
• Failures and damage caused by erroneous work or
work not as instructed in this manual are not covered
by the warranty.
• Check that the installation was done properly in
accordance with this Installation Manual upon
completion.
• After completing installation, please either place this
Installation Manual in a plastic pouch and attach it to
the side of the water heater (or the inside of the pipe
cover or recess box if applicable), or hand it to the
customer to retain for future reference.
DANGER
Danger: DANGER indicates an
imminently hazardous situation which, if
not avoided, will result in death or
serious injury.
HOT
Warning: WARNING indicates a
potentially hazardous situation which, if
not avoided, could result in death or
serious injury.
BURN
Caution: CAUTION indicates a
potentially hazardous situation which, if
not avoided, may result in minor or
moderate injury.
Water temperature over 125°F can
cause severe burns instantly or
death from scalds.
Children, disabled and elderly are
at highest risk of being scalded.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
See instruction manual before
setting temperature at water
heater.
Feel water before bathing or
showering.
Fig. 1
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3
Important Safety Information
Warning: BEFORE OPERATING
smell all around the water heater area
for evidence of leaking gas. Be sure to
smell next to the floor because some
gas is heavier than air and will settle on
the floor.
WHAT TO DO IF YOU SMELL GAS:
- Do not try to light any appliance.
- Do not touch any electrical switch; do
not use any phone inyour building.
- Immediately call your gas supplier from
a neighbor’s phone. Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier,
call the fire department.
Warning:
Use only your hand to turn the gas valve
knob. Never use tools. If the knob will
not turn by hand, don’t try to repair it.
Call a qualified service technician.
Force or attempted repair may result in
a fire or explosion.
Fig. 2
Danger: [660 EF] - do not install
outdoors!
Do not use the water heater if the exhaust pipe is displaced, has holes, is
clogged or is corroded.
Danger: [660 EFO] - do not install
indoors!
This will cause carbon monoxide poisoning and a potential fire hazard.
Danger: Do not allow anyone to
change the water temperature while hot
water is being used!
To prevent scalding, do not change the
water temperature to a higher setting.
Warning: If the information in this
manual is not followed exactly, a fire or
explosion may result causing property
damage, personal injury or death.
Warning:
Do not use this water heater if any part
has been under water. lmmediately call
a qualified service technician to inspect
the water heater and to replace an damaged parts.
Warning:
When a gas leak is noticed:
1. Stop use immediately
2. Close the gas valve
3. [When installing indoors] Open windows and doors.
Warning:
If you detect abnormal combustion or
abnormal odors, or during an earthquake, tornado or fire:
1. Turn off the hot water supply
2. Turn off the power to the water heater
3. Turn off gas and water supply valve.
4. Call the nearest Bosch agent.
Warning: This water heater does not
have a pilot. It is equipped with an ignition device that automatically lights the
burner. Do not try to light the burner by
hand.
4
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Important Safety Information
Warning: Explosion Hazard!
If the temperature and pressure relief
valve is dripping or leaking, have a qualified service technician replace it. Do
not plug or remove the valve. Failure to
follow these instructions can result in
fire or explosion, and personal injury or
death.
Warning:
Check the temperature of the running
hot water before entering the shower.
Check the temperature before stepping
into the bath tub.
Warning:
Do not place the exhaust vent terminal
in an indoor environment by means of
adding walls and ceiling (do not enclose using corrugated sheets, etc.).
Carbon monoxide poisoning or fire may
occur as a result.
Warning:
Leave the proper clearance between
the water heater and nearby objects
(trees, timber, boxes with flammable
materials etc.).
Warning:
Do not use combustible chemicals
such as oil, gasoline, benzene etc. in
the near the heater or the exhaust vent
terminal.
Warning:
Do not place combustibles such as
laundry, newspapers, oils etc. near the
heater or the exhaust vent terminal.
Warning:
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of this or any other appliance.
Warning:
Do not place or use a spray can near
the heater or the exhaust vent terminal.
Warning:
Installation and service must be performed by a qualified installer, service
agency or the gas supplier.
Warning: [When installing indoors
660 EF]
Check the air supply vent for dust or obstructions.
Warning:
If this unit will be installed in a beauty
salon or other location where hair spray
or aerosols will be used, locate the unit
in a separate area that is supplied with
fresh air from outdoors.
Warning:
Do not use hair spray or spray detergent in the vicinity of the heater.
Warning:
Do not allow small children to play unsupervised in the bathroom. Do not allow small children to bathe
unsupervised.
Warning:
Do not touch the powercord with wet
hands.
Warning: [660 EF only]
Carbon Monoxide Poisoning Hazard.
Do not install this water heater in a mobile home, recreation vehicle or on a
boat.
Warning:
Consult the nearest Bosch agent if the
water heater location needs to be
changed.
Warning: [660 EFO only]
Carbon Monoxide Poisoning Hazard.
Do not install this water heater in a recreation vehicle or on a boat.
Warning:
Contact a qualified service technician
for any necessary repairs, service or
maintenance.
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5
Important Safety Information
Warning:
Contact Bosch before using with a solar pre-heater.
Caution:
Do not turn off the water heater while
someone is bathing.
Warning:
California Proposition 65 lists chemicalsubstances known to the state to cause
cancer, birth defects, death, serious illness or other reproductive harm. This
product may contain such substances,
be their origin from fuel combustion
(gas, oil) or components of the product
itself.
Caution:
Do not cover the water heater and the
exhaust vent terminal, store trash or debris near it, or in any way block the flow
of fresh air to the unit.
Warning:
The gas conversion kit shall be installed
by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and
requirements of the authority having jurisdiction. The information in the instructions must be followed to minimize the
risk of fire or explosion or to prevent
property damage, personal injury, or
death. The qualified service agency is
responsible for the proper installation of
this kit. The installation is not proper
and complete until the operation of the
converted appliance is checked as
specified in the manufacturer’s instructions supplied with the kit.
Caution:
Be sure to electrically ground the unit.
Caution:
Keep power cord free of dust.
Caution:
Do not use the water heater for other
than hot water supply, shower and bath.
Caution:
Do not use a broken or modified power
cord. Do not bind, bend or stretch power cords. Do not scratch, modify, or
subject them to impact or force.
Caution:
To prevent burns or scalding, turn off
the power button or power supply and
wait until the equipment cools before
performing maintenance.
6
Caution:
Do not install in locations where excessive dust or debris will be in the air.
Caution:
Do not touch the exhaust vent (pipe, terminal) during or immediately after operation of the water heater.
Caution:
Do not drink water that has been inside
the unit for an extended period of time.
Do not drink the first use of hot water
from the unit in the morning.
Caution:
Clean the filter on the water inlet as frequently as required by the quality of
your local water.
Caution:
Keep the area around the unit clean. If
boxes, weeds, cobwebs, cockroaches
etc. are in the vicinity of the unit,
damage or fire can result.
Caution:
Do not install the equipment where the
exhaust will blow on walls or windows.
Caution:
Treat hard, acidic or otherwise impure
supply water with approved methods to
ensure full warranty coverage.
Caution:
Problems resulting from scale formation
are not covered by the warranty.
Caution:
Check ignition during use and extinction after use.
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Appliance details
Caution:
Do not run water through the unit
when unit is not on. When discharging hot water, make sure the unit is ON.
If water is run through the unit with the
unit OFF, water may condense inside
the unit and cause incomplete combustion or damage to the internal electrical
components. For single-handle fixtures
or valves, discharge water setting the
handle completely to the water side.
Caution:
This unit is only approved for installation
up to 1350m (4500 ft.) above sea level.
For installations at higher elevations,
contact Bosch Thermotechnology
Corp. for Instructions.
Caution:
Do not disassemble the remote controller. Do not use benzene, oil or fat detergents to clean the remote controller.
This may cause deformation. Do not get
the remote controller wet. Although it is
water resistant, too much water can
cause damage. Do not splash water on
the remote controller. Do not expose
the remote controller to steam. Do not
locate the remote controller near stoves
or ovens, this may cause damage or failure.
Caution:
Do not use parts other than those
specified for this equipment.
2
Appliance details
2.1
Features
Parts included with the unit
• Tapping Screw
• Installation Manual/user manual with warranty inside
(this document)
• Cross Recess Head Screw (660 EFO NG, 660 EFO
LP)
• Power Cord (660 EF NG, 660 EF LP).
Accessories (Bosch part #)
• Optional Remote Control to operate with the appliance BRC01US for USA, BRC01CA for Canada
• Isolation Valves (includes pressure relief valve)
• Remote Controller Outdoor Junction Box (BOJB)
• Remote Controller cord 3m (10ft) BRC10CORD
• Remote Controller cord 8m (26ft) BRC26CORD
• Recess Box BRBKIT (for 660 EFO only)
• Pipe Cover (BPCKIT).
i
BOSCH is constantly improving its products, therefore specifications are subject
to change without prior notice.
Caution:
Preventing damage from freezing (see
section 6.2). Damage can occur from
frozen water within the device and
pipes even in warm environments. Be
sure to read below for appropriate
measures. Repairs for damage caused
by freezing are not covered by the warranty.
Caution:
Take necessary measures to prevent
freezing of water and leakage of gas
when leaving the unit unused for long
periods of time (see section 6.2).
Caution:
If it is snowing, check the air inlet, exhaust gas vent and exhaust vent terminal for blockage.
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7
Appliance details
2.2
Specifications (Technical data)
Approved in US/Canada
Capacity
Maximum flow rate: 5.3 GPM (20 l/min) at a 45°F
(25°C) rise.
Maximum Input
140,000 Btu/h (41,03 kW)
Minimum Input
20,000 Btu/h (5.67 kW)
Temperature Control
Selection range: 100°F (37°C) - 160°F (70°C)
Safety devices
• Flame Rod
• Thermal Fuse
• Lightning Protection Device (ZNR)
• Overheat Prevention Device
• Freezing Prevention Device
• Fan Rotation Detector.
i
If this water heater is being installed at an
elevation of 2,000' (610m) or higher,
disconnect the connector labeled "High
Elevation Disconnect". This connector is
located inside the unit.
Default temperature: 120°F (50°C)
Temperature Settings using the remote controller:
USA
100- 150 °F (5°F intervals), 160 °F
Canada
37-48°C (In 1°C intervals), 50-70°C (In 5°C intervals)
Gas Requirement
Gas connection (inches) - ¾”
Inlet gas pressure under operation (with a high hot
water flow rate)
• Propane: 8” - 14” water column
• Natural Gas: 4” - 10.5” water column.
Power Supply Consumption
•
Freeze Prevention 141W.
Water
• Hot water connection (inches) - ¾”
• Cold water connection (inches) - ¾”
• Minimum water flow: 0.5 gallon/minute (2 l/m)
Note: The capacity may differ slightly, depending on
the water pressure, water supply, piping conditions,
and water temperature
• Water pressure recommend: 29 to 70 psi
• Connections:
– Bottom of heater
Dimensions
• Depth (in): 6.7” (170 mm)
• Width (in): 13.8” (350 mm)
• Height (in): 20.5” (520 mm)
• Weight: 36 pounds (16.3 kg).
Gas types
Natural Gas.
LP Gas.
Voltage
120 V AC (60 Hz) nominal
8
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Appliance details
2.3
Before Installation
Danger: Checkup!
Check the fixing brackets and vent pipe
yearly for damage or wear. Replace if
necessary.
Caution: Check Water Supply Quality!
If the water supply is in excess of 6
grains per gallon (100 mg/L) of hardness, acidic or otherwise impure, treat
the water with approved methods in order to ensure full warranty coverage.
Danger: Check the gas!
- Check that the rating plate indicates
the correct type of gas.
- Check that the gas supply line is sized
for 140,000 BTU for 660 EF, 660 EFO.)
Fig. 3
Ex. For LP Gas 660 EFO
Warning: Check the power!
The power supply required is 120VAC,
at 60Hz. May result in fire or electric
shock.
Warning: Use Extreme Caution if Using With a Solar Pre-Heater!
Using this unit with a solar pre-heater
can lead to unpredictable output temperatures and possibly scalding. If absolutely necessary, use mixing valves to
ensure output temperatures do not get
to scalding levels.
Caution: Do Not Use Equipment for
Purposes Other Than Those Specified!
Do not use for other than increasing the
temperature of the water supply, as unexpected accidents may occur as a result.
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9
Appliance details
2.4
Dimensions (660 EF)
Fig. 4
Dimensions
2.5
Dimensions (660 EFO)
Fig. 5
Dimensions
10
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Installation instructions
3
Installation instructions
3.1
Specialized tools
The following specialized tools may be required for
installation:
• Manometer
Max. Straight Vent Length1)
3
15' (4.5m)
2
25' (7.5m)
1
35' (10.6m)
Table 2
• Multimeter
1)
• Combustion Gas Analyzer.
3.2
No. of elbows
Introduction
Please follow these instructions. Failure to follow
instructions may result in:
Not including the termination.
• Make the vertical section of the exhaust ventas short
as possible
• Maintain the same vent pipe diameter from the heater
flue to the vent termination.
Clearances
B Damage or injury.
B Improper operation.
Manufacturer
and Product
B Loss of warranty.
Warning: The water heater must be
installed by a qualified installer in
accordance with these instructions. If
improperly installed, a hazardous condition
such as explosion or carbon monoxide
poisoning
could
result.
Bosch
Thermotechnology
Corp.
is
not
responsible for improperly installed
appliances.
3.3
Venting (660 EF only)
Warning:
CARBON MONOXIDE POISONING!
Follow all vent system requirements in accordance with relevant local or state regulation,or, in the absence of local or state
code, in the U.S. to the National Fuel Gas
Code ANSIZ233.1/NFPA 54 – latest edition, and in Canada, in accordance with
NSCNGPI.
3.3.1
Vent piping
• Bosch Vent System is suggested for the vent system.
If Bosch Vent is not used, a UL listed category III
ventsystem must be used
• Follow the vent pipe manufacturer's installation
instructions.
Bosch Vent
System
Enclosed
Unenclosed
Hort.
Vert.
Hort.
Vert.
10" (250mm) (sides)
15" (375mm) (top)
6" (150mm) (bottom)
4"
(100mm)
1"
(25mm)
1"
(25mm)
Table 3
Clearances vary by manufacturer, refer to the UL
approved clearances when using materials other than
Bosch Vent System.
• The first vertical run from the top of the heater should
be no longer than 0.9m (3')
• Make sure vent pipe is gas tight and will not leak. Use
silicon sealant wherever necessary
• Do not common vent or connect more than one appliance to this venting system
• The total vent length including horizontal & verticalvent runs should be no less than 3' (0.9m).
• Do not store hazardous or flammable substances
near the vent termination and check that the termination is not blocked in any way
• Steam or condensed water may come out from the
vent termination. Select the location for the termination so as to prevent injury or property damage
• If snow is expected to accumulate, take care the end
of the pipe is not covered with snow or hit by falling
lumps of snow
• Consult the vent pipe manufacturer's installation
instructions for chimney connections.
Appliance Adapters
660 EF
Pipe diameter
Table 1
6 720 644 063
3’’ (75mm)
When using a vent system other than Bosch Vent, an
appliance adapter will be required to properly connect
the vent to this appliance. Consult the manufacturer's
instructions for the proper appliance adapter.
11
Installation instructions
Horizontal Vent Termination
Vertical Vent Termination
Fig. 6
• Terminate at least 12" (300mm) above grade or
above snow line.
• Terminate at least 7' (2.1m) above a public walkway,
6' (1.8m) from the combustion air intake of any appliance, and 3' (0.9m) from any other building opening,
gas utility meter, service regulator etc.
• Terminate at least 3' (0.9m) above any forced air inlet
within 10' (3m), 4' (1.2m) below, 4' (1.2m) horizontally from or 1' (0.3m) above any door, window, or
gravity air inlet into any building per National Fuel
Gas Code ANSI Z223.1/NFPA 54.
• Slope the horizontal vent 1/4" downwards for every
12" (300mm) toward the termination.
• In the Commonwealth of Massachusetts a carbon
monoxide detector is required for all side wall horizontally vented gas fuel equipment.
Fig. 7
• Terminate at least 6' (1.8m) from the combustion air
intake of any appliance, and 3' (0.9m) from any other
building opening, gas utility meter, service regulator
etc.
• Enclose exterior vent systems below the roofline to
limit condensation and protect against mechanical
failure.
• When the vent penetrates a floor or ceiling and is not
running in a fire rated shaft, a firestop and support is
required.
• When the vent termination is located not less than 8'
(2.4m) from a vertical wall or similar obstruction, terminate above the roof at least 2' (0.6m), but not more
than 6' (1.8m), in accordance with the National Fuel
Gas Code ANSI Z223.1/NFPA 54.
• Provide vertical support every 12' (3.6m) or as
required by the vent pipe manufacturer's instructions.
• Slope the horizontal vent 1/4" for every 12" (300mm)
towards the drain tee.
• A short horizontal section is recommended to prevent debris from falling into the water heater.
• Install a condensation drain in the horizontal section
of the venting. For installations in tight spaces where
there is not enough room to install two elbows and a
horizontal drain tee, a vertical drain tee may be substituted.
12
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Installation instructions
Clearance Requirements from Vent Terminations to Building Openings
*All clearance requirements are in accordance with ANSI Z21.10.3 and the National Fuel Gas Code, ANSI Z223.1
and in Canada, in accordance with NSCNGPIC.
Fig. 8
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13
Installation instructions
3.3.2
Clearance Requirements from Vent Terminations to Building Openings
All clearance requirements are in accordance with ANSI
Z21.10.3 and the National Fuel Gas Code, ANSI
Z223.1 and in Canada, in accordance with
NSCNGPIC.
Vent Clearances When Heater is Installed
Indoors (For 660 EF appliance)
Maintain the following clearances to any opening in any
building:
• 4' (1.2m) below, 4' (1.2m) horizontally from, or 1'
(0.3m) above any door, operable window, or gravity
air inlet into any building. 3' (0.9m) above any forced
air inlet within 10' (3m).
Fig. 10
Vent Clearances When Heater is Installed in a
Recess Box (For 660 EFO appliance)
Fig. 11 Recess box installation with cover removed
Fig. 9
For Installations in Canada, clearances are as follows:
To windows, doors, & gravity air inlets: 36" (900mm). To
forced air inlets: 6' (1.8m). These clearance requirements hold true for all of the above situations: Indoor.
Maintain the following clearances to any opening in any
building:
•
1' (0.3m) below, 1' (0.3m) horizontally from, or
1' (0.3m) above any door, operable window, or gravity air inlet into any building. 3' (0.9m) above any
forced air inlet within 10' (3m).
Outdoor Clearances to Opening into any Building
(For 660 EFO appliance)
Maintain the following clearances to any opening in any
building:
• 1' (0.3m) below, 1' (0.3m) horizontally from, or 1'
(0.3m) above any door, operable window, or gravity
air inlet into any building. 3' (0.9m) above any forced
air inlet within 10' (3m).
Fig. 12
For Installations in Canada, clearances are as follows:
To windows, doors, & gravity air inlets: 36" (900mm).
To forced air inlets: 6' (1.8m).
14
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Installation instructions
3.4
Combustion air requirements
Combustion Air
Supply combustion air to the units as per the National
Fuel Gas Code, ANSI Z223.1 and in Canada, in
accordance with NSCNGPIC.
• Provide two permanent openings to allow circulation
of combustion air.
• Make each opening 180 square inches if they provide indoor air, and 100 square inches for outdoor
air.
• If the unit is installed in a mechanical closet, provide
a 24" (600mm) clearance in front of the unit to the
door.
• If combustion air will be provided through a duct, size
the duct to provide 60 cubic feet of fresh air per
minute.
Fig. 13
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15
Installation instructions
Attention residents of the Commonwealth of Massachusetts:
In the Commonwealth of Massachusetts the following
regulation went into effect on 12/30/2005:
signage installed in accordance with the provisions of
248 CMR 5.08(2)(a)1 through 4.
(a)For all side wall horizontally vented gas fueled
equipment installed in every dwelling, building or
structure used in whole or in part for residential
purposes, including those owned or operated by the
Commonwealth and where the side wall exhaust vent
termination is less than seven (7) feet above finished
grade in the area of the venting, including but not limited
to decks and porches, the following requirements shall
be satisfied:
(b)EXEMPTIONS: The following equipment is exempt
from 248 CMR 5.08(2)(a)1 through 4:
1. INSTALLATION OF CARBON MONOXIDE
DETECTORS. At the time of installation of the side wall
horizontal vented gas fueled equipment, the installing
plumber or gasfitter shall observe that a hard wired
carbon monoxide detector with an alarm and battery
back-up is installed on the floor level where the gas
equipment is to be installed. In addition, the installing
plumber or gasfitter shall observe that a battery
operated or hard wired carbon monoxide detector with
an alarm is installed on each additional level of the
dwelling, building or structure served by the side wall
horizontal vented gas fueled equipment. It shall be the
responsibility of the property owner to secure the
services of qualified licensed professionals for the
installation of hard wired carbon monoxide detectors.
a.In the event that the side wall horizontally vented gas
fueled equipment is installed in a crawl space or an at
tic, the hard wired carbon monoxide detector with alarm
and battery back-up may be installed on the next
adjacent floor level.
b. In the event that the requirements of this subdivision
can not be met at the time of completion of installation,
the owner shall have a period of thirty (30) days to
comply with the above requirements; provided,
however, that during said thirty (30) day period, a
battery operated carbon monoxide detector with an
alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS.
Each carbon monoxide detector as required in
accordance with the above provisions shall comply with
NFPA 720 and be ANSI/UL 2034 listed and IAS
certified.
3. SIGNAGE. A metal or plastic identification plate shall
be permanently mounted to the exterior of the building
at a minimum height of eight (8) feet above grade
directly in line with the exhaust vent terminal for the
horizontally vented gas fueled heating appliance or
equipment. The sign shall read, in print size no less than
one half (1/2) inch in size, "GAS VENT DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
1. The equipment listed in Chapter 10 entitled
"Equipment Not Required To Be Vented" in the most
current edition of NFPA 54 as adopted by the Board;
and
2. Product approved side wall horizontally vented gas
fueled equipment installed in a room or structure
separate from the dwelling, building or structure used in
whole or in part for residential purposes.
(c) MANUFACTURERS REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM REQUIRED. When
the manufacturer of Product Approved side wall
horizontally mounted gas equipment provides a venting
system design or venting system components with the
equipment, the instructions provided by the
manufacturer for the installation of the equipment and
the venting shall include:
1. Detailed instructions for the installation of the venting
system or the venting system components: and
2. A complete parts list for the venting system design or
venting system.
(d) MANUFACTURER REQUIREMENTS - GAS
EQUIPMENT VENTING SYSTEM NOT PROVIDED.
When the manufacturer of a product approved side wall
horizontally vented gas fueled equipment does not
provide the parts for the venting of flue gases, but
identifies "special venting systems," the following
requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions
shall be included with the appliance or equipment
installation instructions; and
2. The "special venting systems" shall be product
approved by the Board, and the instructions for that
system shall include a parts list and detailed installation
instructions.
(e) A copy of all installation instructions for all products
approved side wall horizontally vented gas fueled
equipment, all venting instructions, all parts lists for
venting instructions, and/or all venting design
instructions shall remain with the appliance or
equipment at the completion of the installation.
4. INSPECTION. The state or local gas inspector of the
side wall horizontally vented gas fueled equipment shall
not approve the installation unless, upon inspection, the
inspector observes carbon monoxide detectors and
16
6 720 644 063
Installation instructions
3.5
Choosing Installation Site
Locate the appliance in an area where leakage from the
unit or connections will not result in damage to the area
adjacent to the appliance or to the lower floors of the
structure. When such locations cannot be avoided, it is
recommended that a suitable drain pan, adequately
drained, be installed under the appliance. The pan must
not restrict combustion air flow.
Danger: Install the exhaust vent
(terminal) so that there are no obstacles
around the termination and so that
exhaust can't accumulate. Do not
enclose the termination with corrugated
metal or other materials.
Danger: Model 660 EFO is for outdoor
installation only. Never install it indoors.
Do not enclose the termination with
corrugated metal or other materials.
This will cause carbon monoxide
poisoning and a potential fire hazard.
Caution: Install the water heater in a
location where it is free from obstacles
and stagnant air.
Caution: Consult with the customer
concerning the location of installation.
Caution: Do not install the water
heater near staircases or emergency
exits.
Caution: Do not install the water
heater where the exhaust will blow on
outer walls or material not resistant to
heat. Also consider the surrounding
trees and animals. The heat and
moisture from the water heater may
cause discoloration of walls and
resinous materials, or corrosion of
aluminum materials.
Warning: Avoid places where fires are
common, such as those where gasoline, benzene and adhesives are handled, or places in which corrosive gases
(ammonia, chlorine, sulfur, ethylene
compounds, acids) are present. Using
the incorrect voltage may result in fire or
cracking.
Caution: Do not locate the vent
termination directed towards a window
or any other structure which has glass
or wired glass facing the termination.
Warning: Avoid installation in places
where dust or debris will accumulate.
Dust may block the air-supply opening,
causing the performance of the device
fan to drop and incomplete combustion
to occur as a result.
Caution: [660 EF]
Avoid installation between the kitchen
fan and stove. If oily fumes or a large
amount of steam are present in the
installation location, take measures to
prevent the fumes and steam from
entering in the equipment.
Warning: Avoid installation in places
where special chemical agents (e.g.,
hair spray or spray detergent) are used.
Ignition failures and malfunction may
occur as a result.
Warning: [660 EF only]
Carbon Monoxide Poisoning Hazard.
Do not install this water heater in amobile home, recreation vehicle or on a
boat.
Caution: [660 EF]
Avoid installation above gas ranges or
stoves.
Caution:
Install in a location where the exhaust
gas flow will not be affected by fans or
range hoods.
Caution:
Take care that noise and exhaust gas
will not affect neighbors. Avoid
installation on common walls as the unit
will make some operational noises while
it is running.
Warning: [660 EFO only]
Carbon Monoxide Poisoning Hazard.
Do not install this water heater in a recreational vehicle or on a boat.
6 720 644 063
17
Installation instructions
Caution:
Make sure that the location allows
installation of the exhaust vent as
specified.
i
State of California:
The water heater must be braced, anchored or strapped to avoid moving during an earthquake. Contact local utilities
for code requirements in your area or call:
1-866-330-2730 and request instructions.
Cooking Equipment
•
If the unit will be installed in the vicinity of a permanent kitchen range or stove that has the possibility of
generating steam that contains fats or oils, use a
dividing plate or other measure to ensure that the unit
is not exposed to air containing such impurities
• The dividing plate should be of noncombustible
material of a width greater than the water heater.
Exhaust hood
i
The Commonwealth of Massachusetts:
1) The outdoor units (EFO) can only be
used if they are for summer use only.
2)The water heater can be used for hot
water only and not in a combination of domestic and space heating.
Dividing plate
Water
heater
Range
For Venting Manufacturers Requirements, see websites
or phone numbers listed below:
Bosch Vent System
www.boschpro.com
Fig. 15
Securing of space for repair/inspection
3.6
Installation Clearances
Warning: Before installing, check for
the following:
Install in accordance with relevant
building and mechanical codes, as well
as any local, state or national regulations, or in the absence of local and
state codes, to the National Fuel Gas
Code ANSIZ223.1/NFPA 54 – latest
edition. In Canada, see NSCNGPIC for
detailed requirements.
• If possible, leave 8" (200mm) or more on either side
of the unit to facilitate inspection.
• If possible, leave 24" (600mm) or more in front of the
unit to facilitate maintenance and service if necessary.
• If possible, leave 3" (75mm) or more above and
below the vent pipe to facilitate inspection and repair
if necessary.
For 660 EF
Required Clearances From Heater
• Maintain the following clearance from both combustible and non-combustible materials.
12” (300 mm) or more
4” (100mm) or more
Fig. 16
2” (50mm) or more
Fig. 14
18
6 720 644 063
Installation instructions
For 660 EFO
Required Clearances From Heater
• Maintain the following clearance from both combustible and non-combustible materials.
* ( ) indicates the distance when installing a heat insulating board (non-combustible material other than metal,
with thickness of 0.1" (2.5mm) or more) or "section of
building effectively finished with non-combustible material." Note, however, that combustion failure may occur
to the unit as exhaust gas reflects from the wall. Provide
clear-ance of 24" (600mm) or more in the front of the
unit to facilitate inspection and repair.
Fig. 18
• When installing the unit on a balcony, etc., secure an
evacuation route of 24" (600mm) or more in width.
• Provide clearance of 24" (600mm) or more in front of
the unit to facilitate inspection and repair. Do install
the unit such as the wall of the second floor where
the unit is out of reach.
Fig. 19
3.7
Installation
3.7.1
Securing to the wall
Be sure to:
• The weight of the device will be applied to the wall. If
the strength of the wall is not sufficient, reinforcement must be done to prevent the transfer of vibration.
Fig. 17
Surrounding the area of installation
• When installing the unit in a common side corridor,
provide a clearance of 47" (1175mm) or more in
front of the unit.
• Do not drop or apply unnecessary force to the device
when installing. Internal parts maybe damaged and
may become highly dangerous.
• Install the unit on a vertical wall and ensure that it is
level.
• Set the bottom edge of the exhaust port about 84"
(2100mm) from the corridor floor.
6 720 644 063
19
Installation instructions
3.7.2
Locating Scew Holes
3.7.5
Caution:
B When installing with bare hands, take
caution to not inflict injury.
B Be careful not to hit electrical wiring,
gas, or water piping while drilling holes.
1. Drill a single screw hole, making sure to hit a stud.
2. Insert and tighten the screw and hang the unit by the
upper wall mounting bracket.
3. Determine the positions for the remaining four screws
(two for the top bracket and two for the bottom), and
remove the unit.
Installations at Elevations Above 2,000'
(610m)
• If this water heater is being installed at an elevation
of 2,000' (610m) or higher, disconnect the connector labeled "High Elevation Disconnect" as illustrated
on the right. This connector is located inside the unit.
• Disconnect power to the water heater before disconnecting this connector. Failure to perform this step
will result in a flashing light on the unit or a "73" code
displayed on the optional remote controller and a
cease in operation. If this occurs, disconnect, then
reconnect power to the water heater to reset the system.
Fig. 22
Fig. 20
3.7.3
Mounting
4. Drill holes for the remaining four screws.
5. Hang the unit again by the first screw, and then insert
and tighten the remaining four screws.
6. Take waterproofing measures so that water does not
enter the building from screws mounting the device.
Fig. 21
3.7.4
Structure
• Make sure the unit is installed securely so that it will
not fall or move due to vibrations or earthquakes.
20
6 720 644 063
Installation instructions
3.8
i
Gas piping
Follow the instructions from the gas
supplier.
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of ½ psig (3.5 kPa).
The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than ½ psig
(3.5 kPa).
The appliance and its gas connections must be leak
tested before placing the appliance in operation.
The inlet gas pressure must be within the range specified. This is for the purposes of input adjustment.
In order to choose the proper size for the gas line, consult local codes or the National Fuel Gas Code ANSI
Z223.1.
Gas Pressure
Size the gas line according to total btuh demand of the
building and length from the meter or regulator so that
the following supply pressures are available even at
maximum demand:
• Natural Gas Supply Pressure
Min.4" WC
Max.10.5" WC
• LP Gas Supply Pressure
Min.8" WC
Max.14" WC.
Gas Meter
• Select a gas meter capable of supplying the entire
btuh demand of all gas appliances in the building.
Gas Connection
• Do not use piping with a diameter smaller than the
inlet diameter of the water heater.
• Gas flex lines are not recommended unless they are
rated for 140,000 btuh (660 EF/660 EFO).
• Install a gas shutoff valve on the supply line.
• Use only approved gas piping materials.
6 720 644 063
21
Installation instructions
Measuring Gas Pressure
• In order to check the gas supply pressure to the unit,
a tap is provided on the gas inlet. Remove the hex
head philips screw from the tap, and connect a
manometer using a silicon tube.
• In order to check the gas manifold pressure, a pair of
taps are provided on the gas valve inside the unit.The
pressure can be checked either by removing the hexhead philips screw and connecting a manometer
with a silicon tube, or by removing the 1/8" NPT
screw with an allen wrench and connecting the
appropriate pressure gauge.
Fig. 23
22
6 720 644 063
Installation instructions
Gas Line Sizing For a BOSCH Gas Water Heater
6 720 644 063
23
Installation instructions
3.9
Water piping
Installation and service must be performed by a qualified plumber. In the Commonwealth of Massachusetts,
this product must be installed by a licensed plumber or
gas fitter in accordance with the Massachusetts Plumbing and Fuel Gas Code 248 CMR Sections 2.00 and
5.00. Observe all applicable codes.
This appliance is suitable for potable water and space
heating applications. Do not use this appliance if any
part has been underwater. Immediately call a qualified
service technician to inspect the appliance and replace
any part of the control system and gas control which
has been under water. If the water heater is installed in
a closed water supply system, such as one having a
backflow preventer in the coldwater supply line, means
shall be provided to control thermal expansion. Contact
the water supplier or a local plumbing inspector on how
to control this situation. A pressure relief valve must be
installed near the hot water outlet that is rated in
accordance with and complying with either The Standard for Relief Valves and Automatic Shutoff Devices for
Hot Water Supply Systems, ANSI Z21.22, orThe ANSI/
ASME Boiler and Pressure Vessel Code, Section IV(
Heating Boilers). This pressure relief valve must be
capable of an hourly Btu rated temperature steam discharge of 140,000 Btuh for 660 EF-(O)). Multiple
valves may be used. The pressure relief capacity must
not exceed 150 psi. No valve shall be placed between
the relief valve and the water heater. The relief valve
must be installed such that the discharge will be conducted to a suitable place for disposal when relief
occurs. No reducing coupling or other restriction may
be installed in the discharge line. The discharge line
must be installed to allow complete drainage of both the
valve and the line. If this unitis installed with a separate
storage vessel, the separate vessel must have its own
temperature and pressure relief valve. This valve must
also comply with The Standard for Relief Valves and
Automatic Gas Shutoff Devices for HotWater Supply
Systems, ANSI Z21.22. (in the U.S. only). A temperature relief valve is not required, but if one is used,do not
install the valve with the probe directly in the flow of
water. This may cause unwarranted discharge of the
valve. Piping and components connected to the water
heater shall be suitable for use with potable water. Toxic
chemicals, such as those used for boiler treatment, shall
not be introduced into the potable water. A water heater
used to supply potable water may not be connected to
any heating system or components previously used with
a nonpotable water heating appliance. When water is
required in one part of the system at a higher temperature than in the rest of the system, means such as a mixing valve shall be installed to temper the water to reduce
the scald hazard.
• Perform the following insulation measures for prevention of freezing.
• Take appropriate heat insulation measures (e.g.,
wrapping with heat insulation materials, using electric heaters) according to the climate of the region to
prevent from freezing.
• Make sure that there are no water leaks from the cold
and hot water supply pipes, then insulate the pipes
completely.
• Be sure to also completely insulate the water supply
valve and the cold and hot water connections on the
water heater (refer to the Fig. 24).
• Do not cover the water drain plug with insulation so
that water in the pipe can be drained (refer to the Fig.
24).
Fig. 24
• Use a union coupling or flexible pipe for connecting
the pipes to reduce the force applied to the piping.
• Do not use piping with a diameter smaller than the
coupling.
• When feed water pressure is too high, insert a
depressurizing valve, or take water hammer prevention measures.
• Avoid using joints as much as possible to keep the
piping simple.
• Avoid piping in which an air lock can occur.
If installing the unit on a roof:
If the unit is installed on a roof to supply water to the levels below, make sure that the water pressure supplied
to the unit does not drop below 29 psi. It may be necessary to install a pump system to ensure that the water
pressure is maintained at this level. Check the pressure
before putting the unit into operation. Failure to supply
the proper pressure to the unit may result in noisy operation, shorter lifetime of the unit, and may cause the unit
to shut down frequently.
• Flush water through the pipe to clean out metal powder, sand and dirt before connecting it.
24
6 720 644 063
Installation instructions
Supply water piping
Description
Max. Levels
• Do not use PVC, iron, or any piping which has been
treated with chromates, boiler seal or other chemicals.
Zinc
5 mg/L or less
• Mount a check valve and a shut off valve (near the
inlet).
Residual chlorine
• In order for the client to use the water heater comfortably, 29 to 70 psi of pressure is needed from the
water supply. Be sure to check the water pressure. If
the water pressure is low, the water heater cannot
perform to its full capability, and may become a
source of trouble for the client.
Drain piping
• Expansion water may drop from the pressure prevention device and wet the floor. If necessary, provide
drain piping or use a drain hose to remove the water.
Hot water piping
• Do not use lead, PVC, iron or any piping which has
been treated with chromates, boiler seal or other
chemicals.
Sulfate ion
1)
Maximum limit suggested by Bosch.
3.10 Water Treatment
If this water heater will be installed in an application
where the supply water is hard, the water must be
treated with either a water softener, which removes the
hardness, or by using sequestering agents, that reduce
the amount of scale deposits. Refer to the below tables
for suggested treatment and maintenance measures to
be taken based on the water hardness level. Damage
to the water heater as a result of water in excess of 6
gpg (100 mg/L) of hardness is not covered by the
Bosch Thermotechnology Corp. Limited Warranty.
When installing a water softener, consult
with the manufacturer for proper sizing
and installation guidelines; the below diagram is for reference only.
i
• Use mixing valves with low water resistance. Use
shower heads with low pressure loss.
Damage to the water heater as a result of poor water
quality is not covered by the Limited Warranty. To
ensure full warranty coverage, treat or condition water
that exceeds the target levels provided in this table.
Source: EPA National Secondary Drinking WaterRegulations (40 CFR Part 143.3)
Description
Residential Use Treatment Guidelines
Type of
Water
Hardness
Level
Treatment
Device
Flush
Frequency 1)
Soft
0-1 gpg
(0-17 mg/L)
None
None
Slightly Hard
1-3 gpg
(17-51 mg/L)
None
None
Moderately
Hard
3-6 gpg
(51-100 mg/L)
Water Softener
Once a Year
Hard
6-10 gpg
(100-171 mg/L)
Water Softener
Once a Year
Very hard
10-14 gpg
(171-239 mg/L)
Water Softener
Softener
Required
Extremely Hard
> 14 gpg
(> 239 mg/L)
Water Softener
Softener
Required
Max. Levels
Total Hardness1)
100 mg/L (6 gpg) or less
Aluminum
0.05 to 0.2 mg/L or less
Chloride
0.05 to 0.2 mg/L or less
Copper
1 mg/L or less
Table 5
1)
Iron
0.3 mg/L or less
Manganese
0.05 mg/L or less
pH
Total Dissolved Solids
4 mg/L or less
Table 4
• The longer the piping, the greater the heat loss. Try
to make the piping as short as possible.
• If necessary, use a pump or other means to ensure
that the supply water pressure to the inlet of the
heater does not fall below 29 psi when the maximum
amount of water is being demanded. Install a pressure meter on the inlet to confirm proper water pressure.
250 mg/L or less
Install Bosch Isolation Valves to allow for flushing.
6.5 - 8.5
500 mg/L or less
Table 4
6 720 644 063
25
Installation instructions
Comercial Use Treatment Guidelines
Type of
Water
Hardness
Level
Treatment
Device
Flush
Frequency 1)
Soft
0-1 gpg
(0-17 mg/L)
None
None
Slightly Hard
1-3 gpg
(17-51 mg/L)
None
None
Moderately
Hard
3-6 gpg
(51-100 mg/L)
Water Softener
Suggested
Once a Year2)
Hard
6-10 gpg
(100-171 mg/L)
Water Softener
Suggested
Twice a
Year3)
Very hard
10-14 gpg
(171-239 mg/L)
Water Softener
Softener
Required
Extremely Hard
> 14 gpg
(> 239 mg/L)
Water Softener
Softener
Required
Table 6
1)
2)
3)
26
Install Bosch Isolation Valves to allow for flushing.
Flushing is required if a water softener is not installed.
Flushing is required if a water softener is not installed.
6 720 644 063
Installation instructions
3.11 Plumbing Applications
Refer to section 11 for Limited Warranty.
Fig. 25
Fig. 26
6 720 644 063
27
Electrical Wiring
4
Electrical Wiring
4.1
Electrical wiring
i
Warning:
Tie the redundant power cord outside
the water heater. Putting the redundant
length of cord inside the water heater
may cause electrical interference and
faulty operation.
Consult a qualified electrician for the
electrical work.
Warning: Do not connect electrical
power to the unit until all electrical
wiring has been completed.
Warning: This appliance must be
electrically grounded in accordance
with local codes, or in the absence of
local codes, with the National Electrical
Code, ANSI/NFPA 70. In Canada, the
latest CSA C22.1 Electrical Code.
Caution: Label all wires prior to
disconnection when servicing controls.
Wiring errors can cause improper and
dangerous operation.
Caution: Verify proper operation after
servicing.
Caution: Field wiring to be performed
at time of appliance installation.
Warning: Electrical Shock Hazard!
Do not turn power on until electrical
wiring is finished. Disconnect power
before servicing. Failure to do so may
result in death or serious injury from
electrical shock.
Ground
• To prevent electrical shock, provide a ground with
resistance less than100Ω. An electrician should do
this work.
• A grounding screw is provided on the back in the
junction box.
Warning:
Do not connect the ground to the city
water or gas piping. Do not tie the
ground to a telephone line.
Breaker Installation
• Mount a device which shuts off the electrical path
automatically (leakage breaker) when electrical leakage is detected.
Power cord connection
1. Remove the screw (one) of the junction box and open
the cover of the junction box.
2. Connect the grounding wire to the ground screw in
the cover.
3. Crimp the outdoor power cord to the power cord of
the unit.
• The electrical supply required by the water heater
is120VAC at 60 Hz. The power consumption may be
up to 141W. Use an appropriate circuit.
• Do not disconnect the power supply when not in use.
When the power is off, the freeze prevention in the
water heater will not activate, resulting in possible
freezing damage.
• Do not let the power cord contact the gas piping.
28
Fig. 27
Caution:
Electrostatic discharge can affect electronic components. Take precautions to
prevent electrostatic discharges from
personnel or hand tools during the water heater installation and servicing to
protect product’s electronic control.
6 720 644 063
Electrical Wiring
4.2
Remote Controller
Applicable Model
6. Replace the front cover of the water heater (4
screws).
660 EF (O)
Remote Controller
BRC01US for USA,
BRC01CA for Canada
Table 7
i
5. Connect the temperature selection wire labeled
"160°F" to the circuit board as shown on the right.
Install the remote controller according to
the instructions in section 4.3 (page 31).
• The 660 EF can be programmed so that it will default
to one of three temperatures 140°F, 130°F, 120°F
(60°C, 55°C, 50°C) when the temperature selection
wire is not connected. To change the default temperature, connect the temperature selection wire as
shown in the below diagram.
Note: If the "160°F (70°C) connector" is being used,
the unit will automatically default to a temperature of
120°F (50°C) for safety if the remote controller is not
installed.
7. Reconnect electrical power to the water heater, but
do not turn it on.
8. Press and hold the FLOW METER ALARM SET button until a sound is heard (2 sec.) and "120°F (50°C)"
appears on the display.
9. Set the upper limit of the hot water supply temperature to 130°F (55°C) ,140°F, 150°F, 160°F (60°C,
65°C, 70°) Cusing the UP and DOWN setting buttons.
10. To put the water heater back into operation, press
the ON/OFF button on the remote controller. To keep
the water heater off, let the unit sit for 30 sec. to return
to the original display.
• The water heater has been factory set to allow a maximum temperature setting of 120°F (50°C). To
access higher temperature settings with the optional
remote controller installed, follow the below steps.
The unit can only be set to temperatures in the range
of 145-160°F (60°C-70°C) when the optional
remote controller is installed.
When setting the maximum temperature to
125-140°F (50-60°C)
1. Turn the water heater off by pressing the ON/OFF
button on the remote controller.
2. Press and hold the FLOW METER ALARM SET button until a sound is heard (2 sec.) and "120°F (50°C)"
appears on the display.
3. Set the upper limit of the hot water supply temperature to 125°F, 130°F (55°C) or 140°F (60°C) using the
UP and DOWN setting buttons.
Fig. 28
Warning:
When changing the temperature, make
sure to confirm with the customer that
the temperature of the hot water will be
very high and that there is a risk of
scalding.
Warning:
Water temperatures above 125°F
(52°C) can cause severe burns or death
from scalding.
4. To put the water heater back into operation, press the
ON/OFF button on the remote controller. To keep the
water heater off, let the unit sit for 30 sec. to return to
the original display.
Connecting Remote Controller Cord to Unit
When setting the maximum temperature to
125-160°F (55-70°C)
• Keep the remote controller cord away from the freeze
prevention heaters in the unit.
1. Turn the water heater off by pressing the ON/OFF
button on the remotecontroller.
• Tie the redundant cord outside the water heater. Do
not put the extra length inside the equipment.
2. Disconnect electrical power to the water heater.
• The remote controller cord can be extended up to
300' (90m) with 18AWG wire.
3. Remove the front cover of the water heater (4
screws).
4. Locate the bag of temperature selection wires
attached to the inside of the unit in the bottom left
corner.
6 720 644 063
• Use a Y type terminal with a resin sleeve. (Without
the sleeve, the copper wire may corrode and cause
problems).
29
Electrical Wiring
• Be sure to hand tighten when screwing to the terminal block. Power tools may cause damage to the terminal block.
Included Parts List
Part Name
Quantity
Remote controller cord
Remote Controller
1
• For extensions, a 26' (7.8m) cord can be purchased
(Part # BRC26CORD) or use 18AWG wire.
Wall Packing
1
• Install according to the National Electrical Code and
all applicable local codes.
Phillips Roundhead Wood Screw
2
Wall Anchor
2
1. Leave enough slack so that the remote controller
cord will not be damaged if the unit is removed from the
wall.
Table 8
2. Remove the front cover of the heater (4 screws).
3. Pass the remote controller cord through the wiring
throughway and into the unit.
4. Connect the Y terminals at the end of the remote controller cord to the terminal block.
5. Secure the remote controller cord with a clamp.
6. Insert the front cover.
Fig. 30
Note: Do not disassemble the remote controller.
Notes on the Installation Location
• The remote should be installed in an easily accessible location.
• Avoid installing in a place where water or steam can
come into contact with the controller.
Fig. 29
4.3
i
• Avoid locations where special chemical agents (e.g.,
benzene, fatty and oily detergents) are used.
Remote Controller Installation
Guide
For Installers:
Read this installation guide carefully
before carrying out installation.
Note:
• Do not connect power to the water heater before the
remote controller has been properly installed.
• Recommended installation location of the remote
controller is in a bathroom.
• Avoid outdoor installation, or installation in an indoor
location where it will be exposed to direct sunlight.
Connection of Remote Controller Cord
• White Connector To Remote Controller.
• Y-shaped Terminals (two- core) To Water Heater.
• Confirm the connection with the labels at both ends
of the remote controller cord.
• A 26' (7.8m)cord can be purchased separately (Part
# BRC26CORD).
• The remote controller cord can be extended up to
300' (90m). by splicing the cord and using 18 gauge
wire to extend the cord to the appropriate length.
Installation
1. Apply Wall Packing to the rear side of the remote
controller.
2. Connect the remote controller wires to the separate
remote controller cord.
30
6 720 644 063
Electrical Wiring
3. Insert the wall pipe containing the remote controller
wires through the hole.
4. Slide the junction box packing and the junction box
over the remote controller wires and wall pipe protruding from the outside wall.
Fig. 31
3. Remove the cover of the remote control, mark the
location of the screw holes, and drill holes for the wall
anchors.
4. Insert the wall anchors, screw the remote control to
the wall and replace the cover.
Fig. 34
5. Slide the box nut over the remote controller wires and
screw it to the wall pipe.
Fig. 32
Installing the Remote Controller Outdoor
Junction Box
1. Insert the remote controller wires through the wall
pipe and secure the wall pipe to the remote controller.
Locate the remote controller wall packing, slide it over
the pipe and wires, and apply it to the rear side of the
remote.
Fig. 35
6. Connect the remote controller wires to the separate
remote controller cord inside the box. Wind the excess
remote controller wire on the provided hooks as illustrated below.
Fig. 33
2. Drill a Ø1"-1/4" (Ø32mm) hole in the wall where the
remote controller will be installed.
Note: Do not install the remote controller in a location
that is exposed to moisture, direct sunlight, or chemical
agents. These can damage the remote controller.
6 720 644 063
31
Electrical Wiring
Fig. 36
Tie the redundant length of the remote controller cord
outside the junction box.
7. Close the junction box.
32
6 720 644 063
Operation instructions
5
Operation instructions
i
5.1
The installer should test operate the unit,
explain to the customer how to use the
unit, and give the owner this manual before leaving the installation.
Trial Operation
Preparation
1. Open a hot water fixture to confirm that water is available, and then close the fixture.
2. Open the gas supply valve.
3. Turn on the power supply. Using the remote controller, turn on the PowerOn/Off button (the Operation
lamp will turn on).
4. Open a hot water fixture and confirm that the Burner
On lamp comes on, and that hot water is being produced. (If necessary, repeat until the air in the gas piping is bled out).
White smoke may be noticed from the exhaust vent during cold weather. However, this is not a malfunction of
the unit.
If an “11” error code appears on the remote controller,
turn the unit off and then back on again, and then open
a hot water fixture again.
5. Change the temperature setting on the remote controller and check that the water temperature changes.
If the water heater does not operate normally, refer to
“Troubleshooting” in this Manual.
After the trial operation, clean the filter in the cold water
inlet.
Caution: Handling after trial operation
If the unit will not be used immediately,
close off all gas and water shutoff
valves, drain all of the water out of the
unit and the plumbing system to prevent
the unit and system from freezing, and
bleed the gas out of the gas line.
Freezing is not covered by the warranty.
2. Turn off all electrical power to the unit.
3. Do not attempt to light the burner by hand.
4. Turn the gas control manual valve (external to the
unit) clockwise to the off position.
5. Wait five minutes to clear out any gas. If the smell of
gas remains, stop, and contact your gas supplier from a
neighbor's phone.
6. Turn the gas control manual valve counterclockwise
to the on position.
7. Turn on electric power to the unit.
8. The unit will now operate whenever hot water is
called for. If the unit will not operate, follow the
shutdown instructions and call a service technician.
Shutdown Instructions
1. Stop any water demand.
2. Turn off electric power.
3. Turn the gas control manual valve clockwise to the off
position.
Should overheating occur, or the gas supply fail to shut
off, turn off the manual control valve to the appliance.
5.2
Initial Operation
Before the first use of your water heater, make the following preparations.
Follow steps 1 through 4.
1. Open the water supply valve.
Fig. 37
2. Open a hot water fixture to confirm that water is available, and then close the fixture again.
Warning:
A fire or explosion may result if these instructions are not followed, which may
cause lose of life, personal injury or
property damage.
Lighting Instructions
This water heater does not have a pilot. It is equipped
with an ignition device that automatically lights the
burner.
Do not try to light the burner by hand.
1. Read the safety information in the installation manual
or on the front of the water heater.
6 720 644 063
Fig. 38
33
Operation instructions
3. Open the gas supply valve.
CLOSED
OPEN
Fig. 39 closed and open on valves
4. Turn on the power.
Warning:
Do not touch with wet hands.
5.3
How to Use (Not using the remote
controller)
Setting and Using the Water Heater
The factory temperature setting is 120 °F (50 °C)
(fixed). Mix with cold water with a mixing valve or at the
fixture for desired temperature.
1. Check that electrical power is connected.
2. Turn on hot water.
3. Mix for desired temperature.
4. Turn off the hot water.
i
The electrical power does not need to be
disconnected between uses.
If you want to the temperature to be changed to 130 °F
(55 °C) or 140 °F (60 °C), contact the installer or
Bosch.
Danger: To prevent scalding
Hot Water Heater temperatures over
125 °F (52 °C) can cause severe burns
instantly or death from scalding.
Children, disabled and elderly are at the
highest risk of being scalded.
Feel water temperature before bathing
or showering.
Temperature limiting valves are available
(installer supplied).
34
6 720 644 063
Operation instructions
5.4
How to Use (Using the remote controller)
Setting and Using the Water Heater
The illustration below shows the remote
controller display. What is actually displayed depends on how the water heater
is set.
i
USA REMOTE CONTROL
(PART N# BRC01US)
CANADA REMOTE CONTROL
(PART N# BRC01CA)
Fig. 40
1
2
3
4
5
6
Burner On Indicator
Priority Indicator
Temperature Setting
Setting Buttons
Power ON/OFF Button
Flow Meter Alarm Set Button
• Burner ON Indicator
When burning, the indicator is lit
• Priority Indicator
When this indicator is lit,the hot water temperaturecan be set
• Temperature Setting
(Ex.: 110°F (40°C))
• Flow Meter Setting
The display will flash after hitting the flow meter alarm
set button
• Error Code
A number will flash if a failure occurs
• Setting Buttons
For setting the hot water temperature, the flow meter
alarm, and other settings
• Power ON/OFF Button
For turning theheater on and off
• Flow Meter Alarm Set Button
For setting the flowmeter alarm.
i
Before use, remove the protective sheet
from the remote controller surface.
6 720 644 063
Starting with the Power OFF
1. Check that electrical power is connected
The temperature will be displayed on the remote control
thermostat.
Danger: To prevent scalding
Hot Water Heater temperatures over
125°F (52°C) can cause severe burns
instantly or death from scalding.
Danger: To prevent scalding
Children, disabled and elderly are at the
highest risk of being scalded. Feel water
temperature before bathing or showering.Temperature limiting valves are available (installer supplied).
Danger: To prevent scalding
When setting the unit to130°F (60°C) or
higher, the temperature display will flash
for 10 seconds and emit a tone as a high
temperature warning.
Danger: To prevent scalding
Take caution when using the unit again
after setting to 125°F (52°C) or higher.
Always check the set temperature before use.
35
Operation instructions
Danger: To prevent scalding
Do not allow anyone to change the water temperature while hot water is running.
The alarm will sound when the set level has been
reached. Stop the water.
i
2. Set temperature
Always check the temperature setting before use.
Check the indicator lights.
3. Turn ON hot water
4. Turn OFF the hot water.
i
An alarm will sound for ten seconds when
the flow reaches the set level.
The water will continue to run unless it is
manually turned off.
The alarm will not sound if it is set for
262 gallons (990 L).
If the flow meter alarm is being used to indicate when a
tub is full:
• If any hot water is being used besides what is going
into the tub, the alarm will sound before the tub is full.
• If there was water in the tub before the fill began, or
if the water is not shut off manually when the alarm
sounds, the tub may overflow
• For most residential applications, the recommended
setting temperature is 120°F (50°C) or less. For
applications that occasionally require a higher temperature setting, locate the remote controller in a
convenient location.
5.4.2
• Consult local codes for minimum operating temperatures.
The remote controller will emit a sound when any button
is pushed. This sound can be muted if it is desired.
5.4.1
Flow Meter Alarm
Preparation: Plug the bath drain
• If there was water in the tub before the fill began, the
temperature in the tub after it is full maybe different
from the temperature setting.
i
Muting the Remote Controller
Initial factory setting is with sound.
Starting with the Power OFF
1. Press the Power ON/OFF Button
The temperature will be displayed on the remote control
thermostat.
2. Set temperature
Always check the temperature setting before use.
Check the indicator lights.
3. Adjust flow meter alarm setting
Press the flow meter alarm set button (the setting will
flash on the display) and adjust with the setting buttons.
Choose the flow meter alarm setting from the following
options: 10 - 60 gallons (40 – 240 L) (In 5 gallons
(20 L) intervals), 70 gallons (260 L), 80 gallons (300 L),
90 gallons (340 L),100 gallons (380L), 262 gallons
(990 L).
i
The alarm will not sound if it is set for
262 gallons (990 L).
Flow meter setting will be (ex. 48 gallons (180 L).
The level can only be adjusted while the indicator is
flashing.
After ten seconds, the remote will again display the temperature.
4. Turn on hot water
The temperature will be displayed on the remote control
thermostat.
5. Turn off the hot water when the alarm sounds
36
1. Hold the Power ON/OFF Button for five seconds
• The flow meter alarm cannot be muted.
• The high temperature warning tone when setting the
unit to 125°F (55°C ) or higher will not emit a sound
when muted.
5.4.3
Adjusting the Maximum Output
Temperature
1. Turn OFF the power.
2. Press and hold the flowmeter alarm set button
until a sound is heard (2 sec.).
3. Change the temperature using the setting buttons.
USA
The upper limit of the hot water supply temperature can
be changed to 100°F,105°F, 110°F, 115°F, 120°F,
125°F, 130°F, 135°F, 140°F.
Canada
The upper limit of the hot water supply temperature can
be changed to 37°C, 38°C, 39°C, 40°C, 41°C, 42°C ,
43°C, 44°C, 45°C, 46°C , 47°C, 48°C, 50°C, 55°C or
60°C.
4. Set the Power button to ON when continuing to
using the unit as is. Otherwise, let the unit sit for
30 sec.
6 720 644 063
Maintenance and service
6
Maintenance and service
i
Periodically check the following to ensure
proper operation of the water heater.
• The venting system must be examined periodically by
a qualified service technician to check for any leaks
or corrosion.
• The burner flame must be checked periodically for a
proper blue color and consistency.
• If the flame does not appear normal, the burner may
need to be cleaned.
• If the burner needs to be cleaned, it must be performed by a qualified service technician.
• Do not obstruct the flow of combustion and ventilation air.
• The pressure relief valve must be operated once a
year to ensure that it is functioning properly and there
is no obstruction. Turn the power off to the unit
before opening the relief valve, and make sure that
water draining out of the valve will not cause any
damage.
• If the relief valve discharges periodically, it may be
due to thermal expansion in a closed water system.
Contact the water supplier or a local plumbing
inspector on how to correct this situation. Do not
plug the relief valve.
Warning:
There is a scald potential if the output
temperature is set too high.
Should overheating occur, or the gas
supply fail to shut off, turn off the manual
gas control valve to the appliance.
Do not use this appliance if any part has
been under water. Immediately call a
qualified service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
Periodically check and clean the filter inside the cold water inlet of the unit.
6.1
Regular Maintenance
6.1.1
Periodic Inspection
• For abnormal sounds during operation.
• For abnormalities in external appearance, discoloration or flaws.
• For proper operation of pressure relief valve.
• For water leaks from the equipment and piping.
• For dust and soot in the exhaust vent or exhaust vent
terminal.
• For dust or debris in the air inlet.
6.1.2
Periodic Maintenance
Equipment
Wipe the outside surface with a wet cloth, then dry the
surface. Use a neutral detergent to clean any stains.
Remote Controller
Wipe the surface with a wet cloth.
• Do not use benzene, oil or fatty detergents to clean
the remote controller; deformation may occur.
• The remote controller is water resistant but not water
proof. Keep it as dry as possible.
Water Drain Valve (with Water Filter)
If the water drain valve (with water filter) is covered with
debris, the hot water may not run smoothly, or the unit
may put out cold water. Check and clean the filter as
explained below.
Caution:
To avoid burns, wait until the equipment
cools down before draining the water.
The appliance will remain hot after it is
turned off.
1. Close the water supply valve.
2. Open all hot water fixtures.
3. With a bucket ready, remove the inlet and outlet drain
plugs (about 0.2 gallons (0.95L ) will drain out).
4. Take the water drain valve (with water filter) out of the
inlet. (See Fig. 41).
Caution:
To prevent burns or scalding, turn off the
power button or power supply and wait
until the equipment cools before performing maintenance.
Check:
• For laundry, newspaper, timber, oil, spray cans and
other combustible materials near the appliance.
6 720 644 063
37
Maintenance and service
6.2
Preventing Damage from Freezing
Caution: Damage can occur from frozen water within the device and pipes
even in warm environments. Be sure to
read below for appropriate measures.
Caution: Repairs for damage caused
by freezing are not covered by the warranty.
Freezing is prevented within the device automatically by the freeze-prevention heater
Freezing cannot be prevented when the power plug is
unplugged. Do not remove the power plug from the wall
outlet (Freezing will be prevented regardless of whether
the operation switch is ON or OFF).
Fig. 41
5. Clean the water drain valve (with water filter) with a
brush under running water.
6. Replace the water drain valve (with water filter) and
close the drain plugs (take care not to lose the packing).
7. Close all hot water fixtures.
8. Open the water supply valve and check that water
does not leak from the drain plugs or water drain valve
(with water filter).
6.1.3
Optional Maintenance
Isolation Valves
• Isolation valves may be purchased as an accessory
from Bosch. They allow for full diagnostic testing and
easy flushing of the system
• The kit includes two full port isolation valves and a
pressure relief valve for the hot side. Contact Bosch
for more information.
• In normal operation, freezing is prevented within the
device automatically unless the outside temperature
without wind is below -5°F (-21°C) (indoor installation) or -4°F (-20°C) (outdoor installation).
• The freeze prevention heaters will not prevent the
plumbing external to the unit from freezing. Protect
this plumbing with insulation, heat tape or electric
heaters, solenoids, or pipe covers. If there remains a
freezing risk, contact the nearest Bosch agent.
Take the measures below for extremely cold temperatures (Only using the remote controller)
Outside temperature including wind chill factor less
than -5°F (-21°C) (indoor installation) or -4°F (-20°C)
(outdoor installation). This method can protect not only
to the heater, but also to the water supply, water piping
and mixing valves.
1. Turn off the power.
2. Close the gas supply valve.
3. Open a hot water fixture, and keep a small stream of
hot water running 0.1 gallon (400cc)/minute or about
0.2" (4mm) thick).
If there is a mixing valve, set it to the highest level.
4. The flow may become unstable from time to time.
Check the flow 30 minutes later. In general, it is not
advisable to run water through the unit when it is OFF,
but in this case freeze prevention is more important.
• Remember to set mixing valves and fixtures to their
original levels before using the unit again to prevent
scalding.
• If there is still a risk that the unit will freeze, drain the
unit as shown on the next page.
If water will not flow because it is frozen
1. Close the gas and water valves.
2. Turn off the power button.
Fig. 42
38
3. Open the water supply valve from time to time to
check whether water is running.
6 720 644 063
Maintenance and service
4. When the water is flowing again, check for water
leaks from the equipment and piping before using.
If the heater or the piping is frozen, do not use the heater
or it may get damaged.
If the water heater will not be used for a long
period of time, drain the water
Drain the water as follows:
Caution:
To avoid burns, wait until the equipment
cools down before draining the
water.The appliance will remain hot after
it is turned off.
Drain water into a bucket to prevent water damage.
1. Close the gas valve.
2. (Not using the remote controller)
Fully open one of the hot water fixtures.
(Using the remote controller)
Turn off ther power button.
3. (Not using the remote controller)
Turn off the power supply after 20 seconds or more
pass from operation of 2.
Do not touch with wet hands.
(Using the remote controller)
Turn off the power supply.
Do not touch with wet hands.
4. Close the water supply valve.
5. Fully open all hot water fixtures.
6. Turn the drain plug to the left to open, and then
remove.
7. Check that the water is completely drained, close all
the drain plugs and the hot water fixtures after 10 minutes or more pass from operation of 6.
Fig. 43
Turning the Unit Back On
1. Check that all drain plugs are inserted.
2. Check that all hot water fixtures are closed.
3. Follow the procedure on p. 35 “Initial operation”,
steps 1 through 4.
6 720 644 063
39
Troubleshooting
7
Troubleshooting
7.1
Initial Operation
Unit does not attempt to ignite when
water is running.
Check for reversed plumbing or crossed pipes.
Unit attempts to ignite but fails.
Reset unit and try again. There may be air in the gas line.
Check the water drain valve filter.
Have a professional check the gas supply pressure.
Table 9
7.2
Temperature
Hot water is not available when a
fixture is opened.
Are the gas and water supply valves fully open?
Is the water supply cut off?
Is the hot water fixture sufficiently open?
Is the gas being cut off by the gas meter? (Can other gas devices such
as stoves be used?)
(For LP) Is there enough gas in the tank? (Can other gas devices such
as stoves be used?)
Is the water drain valve filter clogged?
(Using the remote controller) Is the power button turned on?
No water is available when a fixture is
opened.
Is the water supply cut off?
The hot water is not the correct
temperature.
Is the hot water fixture sufficiently open?
(Using the remote controller)
Water takes time to become hot
when turning the hot water fixture.
Have you allowed enough time for the cold water in the pipes to drain
out?
The water is too hot.
Is the water supply valve fully open?
Is the heater frozen?
(Using the remote controller)
Is the water temperature setting appropriate?
If the water supply temperature is high, it is possible for the temperature
to be higher than the temperature set on the remote controller.
If only a small amount of hot water is demanded, it is possible for the
temperature to be higher than the temperature set on the remote
controller.
Table 10
40
6 720 644 063
Troubleshooting
The water is not hot enough.
Is the gas supply valve fully open?
(Using the remote controller)
Is the water temperature setting appropriate?
If the amount of hot water required is very high, it is possible for the temperature to be lower than the temperature set on the remote controller.
Decrease the amount of hot water passing through the unit and the temperature should stabilize.
The water is cold when only a single
fixture is open.
The unit will not heat the water if the flow rate is less than 0.5 GPM (2L/
min.). Open the fixture more or open other fixtures so that a greater flow
passes through the unit, and the unit should begin heating again.
Fluctuations in hot water temperatures.
Clean the water filter of any debris.
(Using the remote controller)
Setting temperature cannot rise.
Is the maximum temperature setting appropriate?
(Using the remote controller)
Set water temperature at 115°F (48°C) to 120°F (50°C). This will allow
you to use a higher flow of hot water thus meeting the minimum flow
requirement of 0.5 GPM (2L/min.)
Table 10
7.3
Amount of Hot Water
The amount of hot water at a certain
fixture is not constant.
When hot water is demanded at other fixtures, the amount available may
be reduced. The maximum flow available from the 660 EF, 660 EFO is
5.3 GPM (20.0L/min.) at a 45°F ( 25°C) temperature rise.
Pressure fluctuations and other plumbing conditions can cause the temperature and pressure at a fixture to be unstable, but it should stabilize
after a short time.
There are some types of hot water taps that discharges large volumes of
hot water at first but stabilize after time.
To keep the temperature stable, the heater limits the amount of water
that can flow through it to a small amount initially, but the amount
increases over time.
The amount of hot water in the tubis
less/more than the set amount.
When hot water is used for other fixtures while filling the bath tub, the
tub will not fill as much.
If there is water in the tub already, or when filling is stopped and
restarted, the tub will fill more.
The flow meter alarm does not sound
even when filled to the set amount.
The flow meter alarm is set to sound when hot water is continuously discharged for the set volume of water. If mixing valves are used, or if cold
water is mixed with hot water at the fixture, the tub will fill more than the
setting of the flow meter alarm.
Amount of hot water available has
decreased over time.
Is the water filter clogged?
Table 11
6 720 644 063
41
Troubleshooting
7.4
Remote Controller
The light on the power button does not come
on.
Has there been a power failure?
The water temperature changes after a
power failure or when the power is disconnected.
The temperature setting and the flow meter alarm setting may
both need to be reset after a power outage.
The plastic on the surface or buttons of the
remote controller has torn, peeled, or air bubbles inside.
The surface of the remote controller is affixed with aprotective
sheet (to prevent surface scratching, etc.) at time of shipment.
This sheet can be removed or left as it is. When leaving the protective sheet on, areas frequently touched may tear or peel.
However, the remote controller will not malfunction from water
entering such torn or peeled areas. To restore the appearance of
the remote controller surface, simply remove the protective
sheet.
Is the power connected properly?
Table 12
7.5
Sounds
The fan can be heard after operation is
stopped. A motor can be heard when turning
the unit ON or OFF, when opening or closing
a fixture, or after the unit has been running for
a while.
These noises indicate the proper operation of devices which are
designed to let the unit reignite more quickly, and ensure the
water temperature is stable.
Table 13
42
6 720 644 063
Troubleshooting
7.6
Others
The heater stops burning during operation.
Are the gas and water supply valves fully open?
Is the water supply cut off?
Is the hot water fixture sufficiently open?
Is the gas being cut off by the gas meter?
(Can other gas devices such as stoves be used?)
(For LP) Is there enough gas in the tank? (Can other gas devices
such as stoves be used?)
White smoke comes out of the exhaust vent
(terminal) on a cold day.
This is normal. The white smoke is actually steam.
The hot water is turbid.
This is harmless. Small bubbles appear as the air in the water is
heated and depressurized rapidly to atmospheric pressure.
The water appears blue.
The bath tub/wash-basin has turned blue.
Coloration to a blue color may be noticed from small traces of
copper ion contained in the water and fat (furring). However,
there are not problems concerning health. Coloration of the bath
tub/wash-basin can be prevented by cleaning frequently.
Table 14
6 720 644 063
43
Troubleshooting
7.7
Check for an Error Code (Using the remote controller)
Error displays on the remote controller
If there is a problem with the unit, a numerical error code
will flash on the remote controller. If this occurs, take
appropriate measures as listed below. When an error
code appears, the display and the operation light will
flash together.
Fig. 44
Error Code
Cause
Action
Ignition error.
Check whether the gas valve is open. Press
the power button to turn the unit off, open a
hot water fixture, and turn the unit back on.
If the flashing number doesn't return the
problem is solved.
Abnormal combustion, low gas supply pressure.
Have a professional check the gas supply
pressure. Contact the nearest Bosch agent.
Abnormal combustion.
Contact the nearest Bosch agent.
Table 15
Contact Bosch Thermotechnology if:
• Any other error code appears.
• An error code is indicated again after the above
actions were followed.
• There are any other questions.
44
6 720 644 063
Follow- up Service
8
Follow- up Service
8.1
Requesting Service
Warning:
Before the gas conversion is performed,
verify the proper gas conversion kit with
your water heater model on the table
provided below.
First follow the instructions in the troubleshooting section. If the error is not corrected, contact Bosch Thermotechnology Corp. at 1-866-330-2730.
We will need to know:
Conversion
Kit
Model
Conversion
Type
• The Model (check the rating plate)
• Date of purchase (see the warranty)
660NGKIT
• Details of problem...(flashing error codes,
etc., in much detail as possible)
660 EF/
660 EFO
Propane to
Natural Gas
660LPKIT
660 EF/
660 EFO
Natural Gas to
Propane
• Your name, address, and telephone number
• Desired date of visit.
i
8.2
A request for service may be rejected if
the water heater is installed in a location
where working on the unit may be dangerous. Contact a plumber.
Gas conversion
If you move to a region that uses a diferent type of gas
or if the local gas supply is converted, replacement of
the gas manifold and adjustment of the appliance will be
necessary. This work must be performed by either
Bosch or a qualified service agency and will be charged
foreven during the warranty period. The qualified
installer will also be responsible for purchasing the gas
conversion kit directly from the manufacturer. For more
information, contact Bosch Thermotechnology Corp. at
1-866-330-2730.
Warning:
The gas conversion kit shall be installed
by a qualified service agency1) in accordance with the manufacturer’s instructions and all applicable codes and
requirements of the authority having jurisdiction. The information in the instructions must be followed to minimize the
risk of fire or explosion or to prevent
property damage, personal injury, or
death. The qualified service agency is
responsible for the proper installation of
this kit. The installation is not proper
and complete until the operation of the
converted appliance is checked as
specified in the manufacturer’s instructions supplied with the kit.
1)
Table 16
The following parts are supplied in the conversion kit.
These items will replace the existing parts that are currently installed in the unit. Make sure that all parts are
replaced and properly installed by a qualified service
agency.
i
A remote controller and a digital gas manometer are required to complete the
installation. Do not proceed if this equipment is not immediately available.
• Manifold plate
• O-ring
• Conversion Kit Label.
After the necessary parts have been replaced on the
unit, the remote controller is then used to adjust the settings on the water heater for use with the proper gas
type. The gas pressure values at both the gas supply
inlet fitting and at the manifold inlet on the unit are verified by the installer. Proper adjustments will be made to
ensure safe and eficient operation. Once this is completed, a final gas leak check will be performed to confirm that all parts have been securely installed.
Warning:
If you notice the smell of gas at any time
after the installation has been completed, turn the water heater off and contact
your gas supplier immediately.
A qualified service agency is any individual, firm, corporation, or company which either in person or through a
representative is engaged in and is responsible for the
connection, utilization, repair or servicing of gas utilization equipment or accessories; who is experienced in
such work, familiar with all precautions required, and has
compiled with all of the requirements of the authority
having jurisdiction.
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45
Interior components diagram
9
Interior components diagram
9.1
660 EF Interior components
Fig. 45 Components
46
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Interior components diagram
9.2
660 EFO Interior components
Fig. 46 Components
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47
Protecting the environment
10
Protecting the environment
Packing
The packing box may be fully recycled as confirmed by
the recycling symbol
.
Components
Many parts in the heater can be fully recycled in the end
of the product life. Contact your city authorities for
information about the disposal of recyclable products.
Saving water resources:
B Make sure you close all the taps after any use. Avoid
leaving the taps dripping. Repair any leaking tap.
B Define the temperature you want, in the appliance or
with the remote control. This way you have the
precise water flow needed (mixing cold water to
regulate temperature will increase the water flow with
consequent waste of water).
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Limited Warranty
11
Limited Warranty
General
Service Labor Costs
BOSCH PRO tankless water heaters are warranted by
the
Manufacturer
(BOSCH)
through
Bosch
Thermotechnology Corp.
Bosch Thermotechnology Corp. will furnish a
replacement heat exchanger and will furnish a
replacement of any other part which fails in normal use
and service within the applicable periods specified
below, in accordance with the terms of this warranty.
The Bosch Thermotechnology Corp. replacement will
be warranted for the unexpired portion of the original
warranty. This warranty will be valid only for water
heaters in possession of the original purchaser as
recorded on the warranty card.
This warranty does not cover any labor costs
associated with service, removal or re-installation of
part(s). All such costs must be borne by the Purchaser.
Additionally, this warranty does not cover any labor
costs associated with service, removal, installation or
re-installation of the original water heater or a replaced
water heater.
The Heat Exchanger
How to Make a Claim
If the heat exchanger fails within Fifteen (15) years after
the original installation and operation, Bosch
Thermotechnology Corp. will furnish a replacement
heat exchanger. However, if the water heater is used
within an approved hot water recirculation and supplied
with circulated water, this heat exchanger warranty is
limited to three (3) years from date of original installation
and operation. If the water heater is installed in other
than a single family dwelling, this heat exchanger
warranty is limited to two (2) years from date of original
installation and operation.
Any claim for warranty parts should be made to your
local dealer or distributor:
Exceptions
This warranty will not apply:
• 1. to defects or malfunctions resulting from failure to
properly install, operate or maintain the unit in
accordance with the printed instructions provided;
• 2. to damage or abuse, accident, neglect or freezing
and other acts of nature;
• 3. to damage resulting from operation with either the
flame sensor rod or overheat sensor removed;
• 4. to failure of the heat exchanger resulting from the
operation of the water heater in a corrosive
atmosphere or at water temperatures exceeding the
maximum rating, or if the water heater is not supplied
with potable water;
• 5. to defects or damage cause by any attachment
or modification, including any energy-saving device;
• 6. to damage resulting from scale deposits and/or
highly mineralized / unsoftened water supply.
All Other Parts
If any other part fails within five (5) years after original
installation and operation, Bosch Thermotechnology
Corp. will furnish a replacement part free of charge.
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i
NOTE: the water heater must be free of
damaging scale deposits and not subject
to gas pressures greater than those
shown on the rating plate, which must not
be altered, defaced or removed.
BOSCH THERMOTECHNOLOGY CORP.
50 Wentworth Avenue
Londonderry, NH 03053
Tel. 866-330-2730
www.boschpro.com
In most cases, the dealer or distributor will be able to
promptly honor your claim and subsequently notify
Bosch Thermotechnology Corp.. However, all
replacements are made subject to validation by Bosch
Thermotechnology Corp. of in-warranty coverage. The
damaged or defective item must be made available in
exchange for the replacement.
Miscellaneous
No one is authorized to make any other warranties on
behalf of Bosch Thermotechnology Corp.. It is
expressly understood that the replacement warranty of
Bosch Thermotechnology Corp. shall be in lieu of any
and all other warranties, express or implied, including
warranties of merchantability or fitness for a particular
use or purpose, and further that Bosch
Thermotechnology Corp. shall not be liable for any loss
or damage directly or indirectly arising from the use of
the hot water heater, or for any consequential damages
arising from such use (including damages from water
leakage). Bosch Thermotechnology Corp. sole liability
with respect to any defect shall be for the replacement
of the defective part(s). Some states do not allow such
limitations and exclusions, so the above may not apply
to you.
This warranty gives specific legal rights. You may also
have other rights which vary from state to state.
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Limited Warranty
50
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Limited Warranty
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51
Installer Checklist to be completed by installer upon installation
Serial Number
___ ___ ___ ___ ___ ___ ___ ___
(8 digit serial number is located on rating plate on right side panel)
Gas Pressure Reading
Static__________
Operating__________
Building Water Pressure
__________
Range if on Well system __________
Installing Company
_____________________________________________
Installer name
_____________________________________________
Address
_____________________________________________
Phone
_____________________________________________
Installation manual should be left with the owner after the installation is tested and completed
Replacement Parts available from:
BOSCH THERMOTECHNOLOGY
CORP.
50 Wentworth Avenue
Londonderry, NH 03053 USA
Tel. 866-330-2730
www.boschpro.com
Bosch Termotecnologia SA
Estrada de Cacia
3801 - 856 Aveiro - PORTUGAL
© 2010 Bosch Thermotechnology Corp.,
Londonderry, NH