background image

 

La temperatura del agua de salida también puede variar si se sobrepasa el caudal máximo
(consulte el Gráfico 1) o si cambia el voltaje de entrada.

 

Cada módulo calefactor está protegido por un disyuntor térmico electromecánico.  Si la temperatura
de uno de los módulos calefactores sube demasiado, el disyuntor se disparará y cortará el
suministro eléctrico en dicho módulo calefactor.  Si se dispara el disyuntor, debe ser reajustado por
un técnico de mantenimiento cualificado.  Este disyuntor sólo se disparará en circunstancias
excepcionales.

 

La unidad RP17PT se suministra con dos voltajes independientes, y la unidad RP27PT se
suministra con tres voltajes independientes.  La unidad puede seguir funcionando si se desconecta
o si falla uno de estos voltajes, pero el control de temperatura será deficiente (En Canadá, la unidad
sólo dispone de un suministro de voltaje).

 

Según el territorio del país, la temperatura del suministro de agua puede variar entre algo más de
4ºC en invierno y 21ºC en verano, con un promedio de 12,7ºC.

Diagrama 4: Diagrama de conexiones internas para una unidad monofásica RP27PT.  (La unidad
RP17PT tiene dos módulos calefactores  dos suministros). (En Canadá, durante la instalación se coloca
un bloque de terminales auxiliar).

CUTOUT

L2A

L2C

L2B

L1A

L1B

L1C

Wiring Diagram for AE125, 3 x 240V supply.  PowerStar heater.

Thermistor

CUTOUT

CUTOUT

Electronic PCB

Temperature

adjustment

potentiometer

MODULE A

Flow

transducer

Brass inlet manifold and Triac heat sink

For clarity

The positions of

terminals shown

here do not

correspond to

their positions on

the installer

terminal blocks

MODULE B

MODULE C

Especificaciones

Unidad RP17PT

Unidad RP27PT

Suministro de voltaje

2 x 240V CA (Canadá 240V
CA)

3 x 240V CA (Canadá 240V
CA)

Amperaje

2 x 40 A (Canadá 80 A)

3 x 40 A (Canadá 120 A)

Potencia máxima

17,25 kW

26,85kW

Intervalo de control de
temperatura

35°C a 55°C

35°C a 55°C

Intervalo de presión

15 psi hasta 150 psi

15 psi hasta 150 psi

Caudal mínimo

2,26 litros/min

3,02 litros/min

Caudal máximo

Véase el Gráfico 1, Página 8

Véase el Gráfico 1, Página 8

Dimensiones (sin acoplamientos
de agua)

39,3 cm alto x 38,7 cm ancho x
11,4 cm profundo

39,3 cm alto x 38,7 cm ancho x
11,4 cm profundo

Peso (sin agua)

9 kg

10 kg

Esquema eléctrico del RP27PT.  3 suministr

   os de 240V

    calentador PowerStar

PCI electrónica

Potenciómetro de

ajuste de 

temperatura

Transductor

de caudal

T

ermistor

DISYUNTOR

DISYUNTOR

DISYUNTOR

MODULO

MODULO

MODULO

Colector de entrada de bronce y

disipador térmico Triac

Para una mayor 

claridad, las 

posiciones de los 

terminales aquí 

mostrados no se 

corresponden con 

sus posiciones en 

los bloques de 

terminales de

instalación.

9

WARNING 

The unit must only be installed in the orientation shown in Diagram 1, i.e., mounted in a vertical position 
with the water fittings located at the bottom of the unit.  

Under no circumstances should the unit be 

mounted differently.

 

 

• 

If being used in a public place, position the unit out of easy reach to discourage vandalism.  

 

• 

Mount the unit onto a flat section of wall,  well away from any potential splashes of water or spray. 

 

• 

Position the unit upright with all plumbing and electrical connections at the bottom of the unit.  

 

Mounting on the wall

 

 

• 

Undo the retaining screws on the front cover and take the cover off the unit.   Hold the back plate in 
position against the wall and mark the four mounting holes.  

 

• 

Drill the holes and secure the unit using the four wood screws supplied or an appropriate alternative 
method. 

 

Plumbing the unit

 

 

WARNING 

Do not install a non-return check valve within 10 feet of the inlet.  

Do not apply heat or solder to 

connections or pipes if they are already directly connected to the unit.

 

 

Fitting the pipes

 

 

• 

The unit should be connected directly to the main cold water supply and 

not to pre-heated water

.  

(The inlet water temperature must not be greater than 86°F.)  The unit should be installed with shut -
off valves on both the inlet and outlet connections.  

 

• 

It is recommended that you use ¾ inch or ½ inch copper or high -pressure flex connections. 

 

• 

Use Teflon tape for sealing pipe threads.  Do NOT use pipe dope. 

 

• 

Remember to keep the hot water pipe runs as short as possible.  

 

• 

After the unit has been plumbed, and before you wire it, flush it with water to remove any debris or 
loose particles.  Failure to do so may make the unit inoperable. 

 

Connecting the unit to the pipes

 

 

• 

The inlet and outlet connections are clearly marked on the unit. They each have a ¾ inch NPT 
connector. 

 

• 

Install a ball valve in the cold water line. This valve can be used to turn off th e water supply to the 
unit if it needs servicing, or to reduce the water flow if it is too high.  

 

DISCLAIMER 

 

As a condition of installing this product in the Commonwealth of Massachusetts a pressure relief valve 
shall be installed on the cold water side, by a licensed plumber MGL 142 Section 19 Approval number: 
P1-09-25

 

 

Wiring to the unit in the United States of America

 

 

WARNING 

The unit must be installed by a qualified electrician, in accordance with the current version of the National 
Electrical Code.  The unit must be grounded. 

 

4

 

Summary of Contents for RP17PT

Page 1: ...os...

Page 2: ...et water temperature it can handle is 86 degrees F Contact Bosch Water Heating before specifying or installing the appliance in any other application 10 Additional Canadian safety instructions a As pe...

Page 3: ...thermal cut outs which will operate if the unit overheats If a thermal cut out trips then it must be reset by a qualified electrician If the unit has been used recently run the water through for a few...

Page 4: ...cold water supply and not to pre heated wate r The inlet water temperature must not be greater than 86 F The unit should be installed with shut off valves on both the inlet and outlet connections It i...

Page 5: ...mended wire size is 8 AWG The terminal block will accept cables up to 6 AWG size The cable entry is via the 1 inch cable entry hole on the bottom right hand edge of the backplate Strip back the insula...

Page 6: ...the L1 terminals in the unit There are two red wires required in the RP17PT and three in the RP27PT Connect the blue wires from the right hand terminal of the new block to the L2 terminals in the uni...

Page 7: ...ntrol PCB for RP27PT 93 793779 Adjustment knob 93 793784 Inlet filter For further information ask your local deale r FOR SERVICE AND INSTALLATION QUESTIONS CALL TOLL FREE 800 798 8161 Toll Free Fax 80...

Page 8: ...will be lower than what is shown in Graph 1 If a higher outle t water temperature is desired then reduce the flow rate and or supply the unit with 240 volts IMPORTANT Before leaving the site the inst...

Page 9: ...average of 55 F Diagram 4 Internal wiring schematic for single phase PR27PT unit RP17PT has two heater modules and two supplies In Canada an auxiliary terminal block is fitted during installation CUTO...

Page 10: ...y pushing the button s on the top of the heater module s Establish and fix the cause of the overheating Plumbing crossover Test by turning cold water supply off to heater then open hot water faucet s...

Page 11: ...heater to the original owner of the water heater at the original installation location against defects in material and workmanship for the periods specified below WARRANTY PERIOD 1 The Heat Exchanger...

Page 12: ...accident or b The water heater has not been installed in accordance with the applicable local plumbing and or building code s and or regulation s or c The water heater has not been installed in accord...

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