Bosch WH17, WH27 User Manual
TRONIC 6000C WH17 & WH27
Electric Tankless Water Heaters
Overview and Certifi cations
Engineering
Submittal
Sheet
LOW-LEAD
U
P
®
C
®
Engineering Specifi cations
Water heater shall be a Model TRONIC 6000C WH17 or, WH27.
Installation shall consist of ___Model TRONIC 6000C WH17
electric tankless water heaters as distributed by Bosch
Thermotechnology Corp. and 97% thermal effi ciency. Supply
voltage shall be 240VAC (208VAC, 220VAC) with a maximum
output of 17.25kW.
Installation shall consist of ___Model TRONIC 6000C WH27
electric tankless water heaters as distributed by Bosch
Thermotechnology Corp. with a thermal effi ciency of 97%. Supply
voltage shall be 240VAC (208VAC, 220VAC) with a maximum
output of 26.85kW.
The tankless water heaters shall be UL listed for the US and UPC
certifi ed.
CONSTRUCTION
Water heater shall be electricity powered with compact tankless
design for whole house operation and an effi ciency rating of 97%.
Primary heat exchanger shall be made from composite material
and the elements shall be made from -sheathed copper. Unit shall
be protected by a tough sheet metal housing. Heat exchanger
shall be rated for maximum working pressure not less than 150
psig. Water heater shall be equipped with a fl ow turbine. Water
connections for inlet and outlet shall be ¾” NPT male.
The controls shall contain an external set point temperature
selector, display screen and a high temperature safety cut-out.
The controls shall not compensate for heat loss, pipe run, and
other factors affecting the outlet temperature at end use. Unit
shall be equipped with a fl ow turbine and a temperature sensor
for constant output temperature. A red light shall indicate
when the unit is powering one or more elements.
INSTALLATION
All aspects of installation of Water Heater shall be in strict
accordance with manufacturer’s instructions. Materials shall
conform to all manufacturer’s recommendations including
electrical connections and wiring.
Water heater piping shall be fi eld constructed of materials
as specifi ed. Water heater shall be installed with individual
isolating shutoff valves for service and maintenance.
MODE OF OPERATION
The heater shall include integral factory wired operating
controls to control all operation and energy input. Control of
discharge water temperature shall be set through an internal
set point with a fi eld adjustment of 95 to 131 degrees F. Heater
shall be capable of maintaining the temperature set point +/- 3
degrees F. This shall be accomplished by switching or pulsing
the power to the electrical elements.
WARRANTY
The heating modules shall carry a 5 year limited warranty.
All other parts and components shall carry a 2 year limited
warranty against defects in materials or workmanship.
1 of 5
Bosch Thermotechnology Corp. reserves the right to make changes without notice due
to continuing engineering and technological advances | BTC 722008305 A | 07.2015
Bosch Thermotechnology Corp.
Londonderry, NH • Ft. Lauderdale, FL
Tel: 1-866-642-3198 Fax: 1-603-965-7581 www.boschheatingandcooling.
TRONIC 6000C WH17 & WH27
Electric Tankless Water Heaters
Technical Data
Description Unit WH17 WH27
LOW-LEAD
U
P
C
®
7736503051
Part number − 7736503050
Voltage supply VAC 240 240
Amperage A 2 x 40 3 x 40
Maximum output kW 17.25 26.85
Maximum output at 220V kW 15.00 22.50
Maximum output at 208V kW 13.00 20.00
Minimum recommended wire size AWG 8 8
Thermal effi ciency % 97 97
Temperature control range ° F 95 - 131 95 - 131
Maximum inlet water temperature* ° F ≤ 86 ≤ 86
Water pressure range psi 15 - 150 15 - 150
Minimum fl ow rate GPM 0.6 0.8
Inlet / Outlet connections Inch
¾ NPT ¾ NPT
Weight (without water) lbs 20 22
Certifi cations
* Do not use heater for water temperature boosting applications
−
®
Display Screen
The display screen is defaulted to display set-point
temperature in Imperial Units. The set-point temperature can
be adjusted with use of the external set-point temperature
selector.
For a licensed electrician, the display can be adjusted to
display fl ow rate and can be changed to Metric units. These
changes are made by a licensed electrician by making the
appropriate adjustments on the dipswitch, as shown.
Display DIP Switch
[1] Metric units °C & liters per min
[2] Display Temp
[3] American units °F & GPM
[4] Display Flow
2 of 5
Bosch Thermotechnology Corp. reserves the right to make changes without notice due
to continuing engineering and technological advances | BTC 722008305 A | 07.2015
Bosch Thermotechnology Corp.
Londonderry, NH • Ft. Lauderdale, FL
Tel: 1-866-642-3198 Fax: 1-603-965-7581 www.boschheatingandcooling.com
Loading...