Thursday, February 4, 2016

Bosch Gas Tankless Water Heaters and Tank Loading Applications

Global Pro Tankless Supply is always trying to make it easier to figure out the right Bosch tankless water heater that is designed for the right application.  A tank load system, because of the added storage, can provide a high peak flow with fewer tankless units and lower installed cost. This will cover the basics for a tank loading application that will enable the user to have more domestic hot water and can also be set up for heating applications.  The Bosch gas tankless models such as the C1210ESC/C1210ES/C1050ES/C950ES/940ES and 830ES are all capable and designed to work with a tank loading applications.  Tank loading can be done using a standard tank heater as a storage tank or an indirect tank such as the Bosch SST Indirect Storage Tanks.

Many of the tank loading applications range from small singular tank loading to commercial tank loading such as for hotels and Inns.  Please see the diagram below for a basic design of a tank loading application.

For all the different tank loading applications please review the Bosch Applications Manual or call Global Pro Tankless Supply at 866-289-4652.



Monday, January 18, 2016

Bosch Greenstar CRC200 Comfort Room Control

The CRC200 Comfort Room Control is a programmable controller with an integrated temperature sensor and can be used as a boiler control or in conjunction with the CZM100 Comfort Zone Manager as a room controller. It comes with back light and features a time program for heating and indirect hot water tank.

The user interface is used to control a heating zone and a DHW tank charging circuit for water heating directly at the heat source. The user interface displays information about the heat source and heating system and is used to change the settings.
A maximum of 8 heating zones is permitted when connected to several CZM100 Comfort Zone Managers. Water heating may be controlled with or without time program. Installation options: On the wall with a BUS connection to a heat source or CZM100 module with an EMS-BUS Interface (Energy Management System). The part number for the Bosch Greenstar CRC200 Comfort Room Control is (7738111034).


Bosch Greenstar CRC100 Comfort Room Control

The CRC100 Comfort Room Control can be used for a heating system with one heating zone. This method of operation is used when the CRC100 is connected directly to the heat source. This will modulate the percentage of power output the heat source is supplying. The CRC100 can be used for one heating zone with a CZM100. A maximum of 8 heating zones is permitted when connected to several CZM100 Comfort Zone Managers. The CRC100 can be used as a controller for heat sources with an external indirect tank and circulator pump, but the DHW maximum temperature and priority settings are made at the heat source.
The part number for the Bosch Greenstar CRC100 Comfort Room Control is (7738110090).


Wednesday, December 16, 2015

Serial Number Cutoff for Logic PCB for Bosch Tronic 6000C WH17 & WH27

Bosch Thermotechnology is always upgrading the Bosch tankless water heaters and has recently updated the Bosch Tronic WH17 & WH27.  The new model numbers for these heaters are:

Bosch Tronic 6000C WH17 - Model #45-551721

Bosch Tronic 6000C WH27 - Model #45-557721

There have been several upgrades to the units and one of theses changes is to the Logic Printed Circuit Board (PCB).  The new Logic PCB for the Bosch Tronic 6000C WH17 & WH27 has a different part number from the older units.  Below is the new part numbers and also the serial number cutoff for the PCB boards.

Serial Number Cutoff:

WH17
Logic PCB #8-738-710-921, this would be for any new 6000C WH17 with serial number 555 A 800001 or higher

WH27
Logic PCB #8-738-710-922, this would be for any new 6000C WH27 with serial number 555 A 800271 or higher


Friday, November 20, 2015

CZM100 Zoning module for Bosch Greenstar Boilers

Global Protankless Supply now carries the CZM100 Zoning module.  This zone controller is used for the Bosch Greenstar Boilers so that you can control multiple zones of heating off 1 Greenstar Boiler.  Three zone control module, for circulator pumps or zone valve activation. The sleek, compact zone control module is expandable up to three modules, providing a maximum of 8 heating zones. It features external front-facing LED lights for operational visibility.

The CZM100 Comfort Zone Manager provides a fixed warm weather shutdown function at 70F when used with a CRC100 and is adjustable with the CRC200. An optional outdoor sensor is required for warm weather shutdown function.

Thursday, October 8, 2015

New Bosch Tronic 6000C WH17 & WH27 Electric Tankless Water Heaters

Global Protankless Supply is now carrying the new Bosch Tronic 6000C series model WH17 & WH27 electric tankless water heaters.  Bosch is always making improvements and upgrades to the tankless water heaters.  The Bosch Tronic 6000C WH17, part number 7736503050 and the Bosch Tronic 6000C WH27, part number 7736503051 now come with a temperature control knob on the front of the unit and also a digital display to show the set temperature. The new Bosch Tronic 6000C WH17, model number 45-551721 begins with serial number 555 A 800001.  The new Bosch 6000C WH27, model number 45-557721 begins with serial number 555 A 800271.

Bosch has made other upgrades to the unit and some of the highlights of the new units are listed below.

  • Provides endless hot water for 1-3 major applications at a time*
  • 97 % efficiency rating
  • Compact & lightweight
  • Electronic flow sensor
  • Element modulation provides a constant output temperature
  • Filter screen on inlet
  • Improved temperature stability & control
  • Enhanced scale resistance
*Dependent on location and model used.

The Bosch WH17 needs to be wired in using 8 ga wire to 2 - double pole 40 amp breakers and the home should be equipped with at least a 150 amp panel box.

The Bosch WH27 needs to be wired in using 8 ga wire to 3 - double pole 40 amp breakers and the home should be equipped with at least a 200 amp panel box.

There is a 5 year warranty on the heating elements and 2 year warranty on all other parts.

Below is a sizing chart that may help determine which model electric tankless may be best for you in the area where you live.




Thursday, October 1, 2015

Items Included with Bosch Greenstar Floor-Standing (FS) Boilers

This is to list the items that are included with the Bosch Greenstar Floor-Standing (FS) Straight Boilers and FS Combi Boilers.  The Bosch Greenstar FS boilers already have the main controller integrated into the top of the boiler itself.  See the list below of the items that come with the boilers and also the list of the optional accessories.

Included with Bosch Greenstar FS Straight Boilers
Installation manual
Adapter for connection of a Low Water Cutoff (LWCO)
Gas conversion kit
DHW tank temperature sensor (for use with indirect tank)
Flue adapter

Included with Bosch Greenstar FS Combi Boilers
Installation manual
Adapter for connection of a Low Water Cutoff (LWCO)
Gas conversion kit
Flue adapter

Optional Accessories for Greenstar FS Boilers (not included)
FW200 Weather compensation control
CRC100 or CRC200 room thermostats
CZM100 Zoning module
Optional concentric vent kit available for horizontal direct vent terminations
ICM control for cascading up to 4 boilers