Bosch AE125 User manual

Bosch AE125 User manual
Update Bulletin No. 678
www.dulley.com
T
hank
you for
your interest
in writing to me about
instantaneous water heaters. An instantaneous
water heater will provide
a limitless number of consecutive showJim Dulley
ers, but there
is a limit to the number of hot
water usage tasks that you can do
simultaneously. Keep in mind that
your family probably cannot take
several hot showers at the same
time that you are washing clothes
or running the dishwasher. Some
large families install two tankless
water heaters in their homes and
have separate bathroom and utility room/kitchen hot water circuits.
small and are often hung on a wall or in a
closet. In the lower picture, notice the air
inlet vents in the door and the closet wall for
adequate combustion air.
To determine the proper size your family will need, first estimate the maximum
amount of hot water that you will use at any
one time. You can use the
water flow rate table below for
this. Be reasonable and understand that you cannot do all
the hot water usage tasks at
one time. This is not a major
sacrifice for the amount of
money that you will save. Also,
unlike a tank-type water heater
that will rust out and must be
discarded, an instantaneous
water heater can be repaired.
Flow Rates
If your house is all-electric, Keltech offers excellent more powerful electric models.
Keltech uses electronic heating controls to
produce only as much heat as the flow of
water requires. If you are replacing an existing electric water heater, you will have to add
extra electric service to the new one. Adding
this electric service can be quite expensive at
times, so get a quote on it from an
electrician before selecting an electric model. Hot Aqua and Niagara
make plug-in single-sink/shower
models which operate on standard
120-volt power.
Now that you have a rough estimate of
your peak hot water usage , you can
use the charts on the following pages
to determine which models will fit
your needs. First check with your
waterworks company to find the
average temperature of the incoming cold water. Use the winter
temperature to be conservative. If
Bosch Water Heaters, Noritz,
the incoming temperature is 50 deRheem/Paloma, and Takagi are my
grees and you want 120-degree hot
favorite high-output gas-powered
water, the temperature rise needed
tankless models. These have moduBosch gas model
is 70 degrees (120-50). Now go to
lating gas valves and special controls to vary the heat output depending on the
Typical Flow Rates in Gallons per Minute (gpm)
volume of hot water needed. The gas valve
reacts very quickly to changing water flow
Kitchen
Pantry
Laundry
DishLavatory
Bathtub
Shower
Sink
Sink
Sink
washer
needs. This provides more constant
hot water temperatures for all water
0.8 - 1.5
2.0 - 4.0
1.5 - 3.0
1.0 - 1.5
1.5 - 2.5
2.5 - 3.0
2.0 - 3.0
flow rates up to the maximum heat
output of the unit.
It is important to understand how an
instantaneous water heater works to determine which model is best for you. Instead of
keeping a large tank full of hot water, a
tankless water heater instantly heats the cold
incoming water as it flows through it. It only
heats the water when hot water is being used.
This requires high intensity gas (or propane)
burners or large electric heating elements to
heat the water quickly. Even though the
heating capacity is great, there is a maximum
flow of hot water available. The units are
Fixture
Type
the charts on the
following pages
and check to see
which tankless
water heater models will provide
the gpm of hot
water flow for the
temperature rise
that you desire.
Gas models by
The gas models
Rheem/Paloma
have the greatest
hot water output capacity.
Powerstream Tankless Electric Water Heaters
by Bosch Water Heaters
solid copper heat terminal block
exchanger
power on
indicator light
copper
sheathed
heating
elements
wire entry
access
thermal
cut out
inlet fitting
(cold)
heat
setting
selector
• Uses a solid copper
heat exchanger to instantly heat water. A
temp selector allows you
to adjust the temp of the hot water to a
specific use. A durable plastic housing
protects the interior components.
water
valve
outlet fitting
(hot)
Acutemp by Keltech
• The Acutemp is designed to
be activated by a flow switch
- a minimum flow rate of .5
gpm is required
• A remote temperature dial operates on a 12-vdc low-voltage wire. The remote can be
mounted up to 25 feet away
• Set the temperature dial to 105
degrees for most common
household uses
• Actual possible temperature
settings range from 40 to 160
degrees
• Constructed of copper, brass,
stainless steel and all solidstate electronic controls
• Models available for 208, 240,
277 or 480 volts.
hot water
outlet
bimetal
fuses
temperature
selection dial
cold water
inlet
flow
switch
heat
exchanger
assembly
drain
plug
heating
elements
electronic
temperature
control board
main
fuse
block
Update Bulletin No. 678
www.dulley.com
page 2
Hot Water Output Capacities and Features for Selected Tankless Water Heaters
Gallons per Minute (GPM) Temperature Rise at
Company
ADVANCED TECH INTL., INC.
PO Box 833274
Miami, FL 33283
(888) 596-6444 (305) 265-7751
www.waterheater.net
Model
Type
I220
Supreme
50°
60°
70°
80°
90°
2.2
1.83
1.57
1.38
1.22
2.60
2.17
1.86
1.63
1.44
electric 240v
S220
Features - The water temperature is controlled electronically. The electronic circuit board continually monitors and controls the water temperature. It is
thermostatically controlled and there is a manual temperature control dial that allows you to adjust the temperature to your preference. Model "S220" has
three heating elements and model "I220" is equipped with two heating elements. There is a limited lifetime warranty on the heat exchanger, everything
else is covered by a one-year warranty. The units are suited for wall mounting because they are light weight and have a compact size. There are models
available for areas with ambient water temperatures of 70 degrees.
CHRONOMITE LABS
1420 West 240th St.
Harbor City, CA 90710
(800) 447-4962
(310) 534-2300
www.chronomite.com
S-30L
elect. 120/240v
0.41
0.34
0.29
0.26
0.23
0.63
0.53
0.45
0.39
0.35
0.82
0.68
0.59
0.51
0.46
0.96
0.80
0.69
0.60
0.53
1.08
0.90
0.77
0.68
0.60
1.22
1.02
0.87
0.76
0.68
0.40
0.33
0.28
0.25
0.22
E-46
0.62
0.52
0.44
0.39
0.34
E-60
0.82
0.68
0.59
0.51
0.46
0.96
0.80
0.69
0.60
0.53
E-80
1.08
0.90
0.77
0.68
0.60
E-90
1.22
1.02
0.87
0.76
0.68
S-46IL
Instant Flow
S60I
S70C
electric 240v
S-80I
S90I
E-30
Instant Temp
E-70
elect. 120/240v
electric 240v
Features - The "Instant Flow" series has a built-in temperature safety feature. The heating element will not function above 190° F operating temperature.
The safety feature interrupts the power source, and it cannot be reset. The unit weighs six pounds and the dimensions are 6" x 9" x 2-1/2". The element
assembly has self-cleaning Celcon waterways which eliminates alkali and calcification build-up. There are low water pressure models available. The
"Instant Temp" series has a microprocessor controller that monitors, inputs and makes adjustments 7200 times per minute to maintain the desired water
temperature within two degrees of the setting. You select and adjust the water temperature on the selector panel (mounted on the wall) by pressing the up
or down buttons. The three-digit LCD displays the temperature selection. The panel measures 4-1/2" x 4-1/2" x 2-1/4" and has an LCD display. See
illustration and additional information on page 4.
BOSCH WATER HEATERS
340 Mad River Park
Waitsfield, VT 05673
(800) 503-5028
www.boschhotwater.com
125* - 117,000 Btu
Aquastar
425EF-130,000 Btu
gas
635ES-175,000 Btu
Powerstream
Powerstar
3.60
3.05
2.65
2.20
2.00
3.83
3.19
2.74
2.39
2.13
5.72
4.77
4.01
3.58
3.18
RP1
electric 240v
1.28
1.07
0.91
0.80
0.71
RP3
electric 120v
0.40
0.33
0.29
0.25
0.22
RP7
0.96
0.80
0.69
0.60
0.53
RP12
1.62
1.35
1.16
1.01
0.90
2.30
2.00
1.70
1.50
1.28
3.70
3.00
2.60
2.20
2.06
AE115
electric 240v
AE125
Features - The "Aquastar" gas models have a side wall vent option that allows horizontal venting. All the water parts are solid copper or solid brass for
dependability and long life. The heat exchanger is solid copper and the burners are stainless steel. There is a fifteen-year warranty on the heat
exchanger. The "125" series has several models to choose from. The Aquastar "125 Series" is the minimum size for a family. Model "125HX" creates its
own electricity to ignite the flame. Since it has no standing pilot and uses no energy at idle, it has an energy factor of .78. Model Powerstar "AE Series"
are electric powered and large enough for several tasks. The point-of-use "Powerstream" unit can be mounted in any direction for a single faucet. There
is a power indicator light and a heat setting selector. It uses a solid copper heat exchanger and copper sheathed heating elements to instantly heat water.
There is a five-year warranty on the unit if the heat exchanger leaks or if the heating element fails.
EEMAX INC.
353 Christian St.
Oxford, CT 06478
(800) 543-6163 (203) 267-7890
Series-Two
EX144
1.95
1.63
1.39
1.22
1.08
EX190
2.61
2.18
1.86
1.63
1.45
0.76
0.63
0.54
0.48
0.42
0.88
0.73
0.63
0.55
0.49
EX75
1.02
0.85
0.73
0.64
0.57
EX95
1.30
1.08
0.93
0.81
0.72
EX55
Flow-Controlled
EX65
electric 240v
Features - The units are supplied with compression rings and cuts for direct coupling to standard 1/2" copper or plastic pipe, eliminating the need for
soldering. The flow-controlled models are the simplest designs and are either fully on or off. These are adequate for a kitchen sink, for example. The units
have a patented flow path that ensures optimum heat transfer and an extended element life. The cabinets are made of high stength reinforced engineering
plastic for durability. There are similar thermostatic models that have a fully adjustable temperature between 100° to 140°F. The thermostatic control
reduces temperature fluctuation.
Update Bulletin No. 678
www.dulley.com
page 3
Hot Water Output Capacities and Features for Selected Tankless Water Heaters
Company
SKYE INTERNATIONAL
7650 E. Evans Rd., Ste. C
Scottsdale, AZ 85260
(480) 993-2300
www.tankless.com
Model
Model Number
Type
60
80
Fortis
100
electric 240v
120
Gallons per Minute (GPM) Temperature Rise at
50°
60°
70°
80°
90°
2.60
2.30
1.90
1.65
1.40
3.40
2.90
2.40
2.15
1.90
4.10
3.60
3.10
2.70
2.30
5.10
4.30
3.60
3.25
2.90
Features - All models carry a lifetime warranty against leaking due to product failure. All the electrical components, including the heating elements, carry a
two-year warranty against product failure. All models are designed with remote control capability. The remote control is a separate item and can be
ordered along with your heater at time of purchase or can be purchased at a later date. There are nine models that range from as small as a 30 amp
model to as high as a 120 amp model. This allows for installation in any climate or application.
HOT AQUA INC.
141 Calle Iglesia
San Clemente, CA 92672
(800) 441-0011 (714) 366-9303
Power Cord
18/125PC
24/125PC
electric 120v
36
Point of Use
59
electric 240v
70
0.24
0.20
0.17
0.15
0.13
0.30
0.25
0.21
0.19
0.17
0.50
0.42
0.36
0.31
0.28
0.80
0.67
0.57
0.50
0.45
0.96
0.80
0.69
0.60
0.53
Features - The "PC" models are equipped with a 6-foot power cord. They are available with a thermostat. There is a high temperature limit switch that
protects against element burn out. The units come with an installation kit that includes the necessary brass pipe fittings, stainless steel braid reinforced
flexible connecters, toggle bolts, screws and teflon tape. These units are round - 6-1/2" tall and 4-1/2" in diameter, weighing 4 pounds. The
KELTECH INC.
729 South Grove St.
Delton, MI 49046
(800) 999-4320 (269) 263-6395
www.keltech-inc.com
100
Acutemp
120
electric 240v
150
180
elect. 240/480v
1.36
1.13
0.97
0.85
0.75
1.64
1.37
1.17
1.03
0.91
2.04
1.70
1.46
1.28
1.13
2.44
2.03
1.74
1.53
1.36
Features - Can be mounted between 16" stud spacing. An access panel must be provided to reach the unit if any repairs need to be made. It has a
remote temperature dial that can be mounted up to 25 feet from the heater with provided hardware. The units have an electronic controller which activates
two or three power triacs. These in turn energize two or three heating elements independently depending on the model. Power applied to the heating
elements varies according to the temp setting and flow rate to maintain a constant temp output. There is a limited lifetime warranty.
MICROTHERM, INC.
22 Airtex
Houston, TX 77090
(888) 296-9293 (281) 876-3300
www.seisco.com
Point of Use
RA-9
1.22
1.02
0.87
0.76
0.68
RA-11
1.52
1.27
1.09
0.95
0.84
RA-14
1.92
1.60
1.37
1.20
1.07
RA-18
Seisco
electric 240v
2.45
2.04
1.75
1.53
1.36
RA-22
3.00
2.50
2.14
1.88
1.67
RA-28
3.80
3.17
2.71
2.38
2.11
Features - The point-of-use models have two heating chambers, the larger Siesco models have four chambers for more output and even water
temperatures. The heaters uses five separate safety features in addition to the normal control circuitry, each of which acts independently.
NIAGARA INDUSTRIES
4120 NW 28th St.
Miami, FL 33142
(305) 876-9010
www.tanklesswaterheater.com
N-10
electric 120v
N-42
Titan
N-75
N-85
electric 240v
N-120
0.48
0.40
0.34
0.30
0.27
0.66
0.55
0.47
0.41
0.37
1.20
1.00
0.86
0.75
0.67
1.38
1.15
0.99
0.86
0.77
1.90
1.58
1.36
1.19
1.06
Features - The units have an electronic control for more accurate water temperatures. The microprocessor samples input and output temperatures 21
times per second. There are three sets of safety devices, two are automatic and one is manual. The manual resettable thermostat will prevent
overheating of the unit and will turn it off until the reset button is pushed.
NORITZ AMERICA
25172 Artic Ocean
Lake Forest, CA 92630
(866) 766-7489 (949) 420-0409
www.noritz.com
Noritz
N-042 - 119,000 Btu
3.78
3.15
2.70
2.36
2.10
N-063 - 175,000 Btu
5.67
4.73
4.05
3.54
3.15
7.56
6.30
5.36
4.73
4.17
11.88
9.90
8.49
7.43
6.60
N-084 - 236,000 Btu
gas
N-132 - 380,000 Btu
Features - The N084M, and N-132M models have the capability of installing two units together utilizing only the Quick-Connect Cord. For residential
applications, the heaters offer a 10-year warranty on the heat exchanger and 3 years on all parts, which is non-prorated. Outdoor models are available.
RHEEM/PALOMA
2600 Gunter Park Dr.
Montgomery, AL 36109
(800) 621-5622
www.rheemtankless.com
Constant Flo
RTG2-42PVN - indoor
3.80
3.20
2.70
2.40
2.10
RTG-53PVN - indoor
4.70
3.90
3.40
3.00
2.60
6.60
5.50
4.70
4.10
3.70
6.60
5.50
4.70
4.10
3.70
RTG-74PVN - indoor
RTG-74X - outdoor
gas
Features - The modulating control automatically adjusts the flame to the water flow you select. There is a temperature adjusting spindle so you can adjust
the water temperature to your preference. The units are equipped with a piezo igniter that lights the pilot flame without a match. There is a freeze
protection kit available that is thermostatically controlled. Has a three-year warranty on parts and a 10-year warranty on the heat exchanger.
Update Bulletin No. 678
www.dulley.com
page 4
Hot Water Output Capacities and Features for Selected Tankless Water Heaters
Company
RINNAI
1662 Lukken Industrial Dr., W
LaGrange, GA 30240
(800) 621-9419
www.rinnai.us
Model
Model Number
Type
2520FFU - indoor
Rinnai
2020W - outdoor
2532FFU - indoor
gas
2532W - outdoor
Gallons per Minute (GPM) Temperature Rise at
50°
60°
70°
80°
90°
5.30
5.20
4.50
3.90
3.50
5.00
4.20
3.60
3.20
2.80
6.30
5.20
4.50
3.90
3.50
6.70
5.60
4.80
4.20
3.70
Features - These models use electronic ignition so there is no pilot light. They have remote controls that operate on 12 volts dc. They are direct vent and
do not require a chimney. The model "2532W"and "2020W" are designed to be mount outdoors. Both models have frost protection.
S.E.T.S. SYSTEMS INC.
6900 NW 72nd Ave.
Miami, FL 33166
(877) 649-8589 (305) 863-9418
www.setssystems.com
SETS
110
1.50
1.25
1.00
0.94
0.83
145
1.96
1.63
1.40
1.23
1.09
165
2.24
1.86
1.60
1.40
1.24
180
electric 240v
2.44
2.03
1.74
1.53
1.36
220
3.00
2.50
2.14
1.87
1.66
Features - Model "110" is designed for a point-of-use unit for just one faucet. Models "145" and "165" have four elements and are designed for use as a to
handle one or two faucets. Model "145" is for use in moderate climates, model "165" is for colder climates (lower incoming water temps). Models "180"
and "220" have four elements and are considered whole-house model or for homes with hot tubs. A pool and spa heater is also available.
STIEBEL ELTRON
242 Suffolk St.
Holyoke, MA 01040
(800) 582-8423 (413) 538-7850
www.stiebel-eltron-usa.com
DHC 3-1
DHC
0.40
0.33
0.29
0.25
0.22
DHC 3-2
0.44
0.36
0.31
0.28
0.24
DHC 4-2
0.52
0.43
0.37
0.33
0.29
0.66
0.55
0.47
0.41
0.37
12
1.75
1.30
1.15
1.00
0.75
24
3.25
2.70
2.30
2.05
1.30
DHC 5-2
Tempra
electric 120v
electric 240v
Features - Electronic-controlled (add "E" at end of model number) models of the DHC modes are available. Heating elements are controlled by a flow
switch and by a scald-guard themostat, which keeps the water temperature within safe limits at all times. They have a copper sheathed heating element
housed in a copper cylinder. Tempra models are considered to be whole-house capacity. Three-year limited warranty.
TAKAGI IND. CO. USA, INC.
5 Whatney
Irvine, CA 92618
(888) 882-5244 (949) 770-7171
www.takagi-usa.com
Flash
Mobius
TK-JR - 140,00 Btu
4.62
3.85
3.30
2.87
2.56
T-K2 - 185,000 Btu
6.20
5.20
4.40
3.90
3.40
T-KD20 - 185,000 Btu
6.20
5.20
4.40
3.90
3.40
T-K1S - 190,000 Btu
6.31
5.26
4.51
3.94
3.51
T-M1 - 235,000 Btu
7.70
6.42
5.01
4.81
3.89
gas
Features - A wall mounting bracket allows for indoor or outdoor wall hanging installation. A temperature remote controller allows the water temp to be
adjusted between 95° and 167°F. Computer monitored safety controls keep the unit working safely. The T-KD2 model is a direct-vent design.
TANKLESS HOT WATER SYST.
111 North 28th Ave.
Humboldt, TN 38343
(731) 824-2586
www.tanklesshot.com
HP-312
Santon
electric 120v
HP-724S
0.40
0.33
0.29
0.25
0.22
0.94
0.78
0.67
0.59
0.52
1.22
1.02
0.87
0.76
0.68
electric 240v
HP-924S
Features - "HP-312" has no thermostatic control. Other units are thermostatically controlled with the temperature adjusted with a rotary dial. Automatically
controls outlet water temperature by modulating electric input. The water heater components are of copper or brass for a long life.
Power Cord by Hot Aqua (small single sink design)
Tested at 300 psi • 98% efficiency. • No paint surface to rust or fade •
Comes with 6' power cord • Water pressure to activate: 25 psi to 120 psi
maximum • All parts work mechanically, no electronic
parts • High temperature limit switch
protects against element burn out •
No need to hard wire • High tech
tubular “Incoloy 840” heating element • New dielectric corrosion resistant, — all brass head •
Available with thermostat • Flow
control is built in • Single phase
only • Round: 4.5" diameter x
6.5" high • Weight 5 pounds •
Color — gray • Pipe connections: Female 3/8" NPT •
Single pipe system • One year limited warranty
DHC Tankless Electric Water Heater by Stiebel Eltron
Designed for installation at the
point of use. They heat water instantaneously as it flows through the unit.
The heating elements are controlled
by a flow switch and by a scald-guard
thermostat, which keeps the water
temperature within safe limits at all
times.
In addition, the DHC water heaters are equipped with a high-limit
safety with manual reset. Has an all
copper design for durability. It fits
anywhere due to its compact size.
Available in different KW sizes; for
120V and 240V.
scald-guard
thermostat
heater
safety
thermal
cut-out
flow switch
wiring
block
Visit www.dulley.com for a listing of all 194 Dulley Update Bulletins available to order by mail for email delivery.
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