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Showing posts with label freeze protection. Show all posts
Showing posts with label freeze protection. Show all posts
Thursday, December 7, 2017
Low Stock on Bosch 425HNO LP Outdoor Gas Tankless Water Heater
Global Pro Tankless Supply has just a limited supply of the Bosch 425HNO LP (Liquid Propane) outdoor tankless water heaters left in stock. The Bosch 425HNO LP model uses a hydro ignition system to activate the burners and utilizes a modulating gas valve to ensure a constant temperature at varying flow rates. The 425HNO LP is designed to be installed outdoors and has a 120V plug that is only used for freeze protection (unit requires no electrical power to operate). The 425HNO LP is the perfect tankless solution for smaller families and households that only use no more than two hot water applications at a time. The last Bosch 425HNO LP units left are for Liquid Propane (LP) so call soon while supplies last.
Please call Global Pro Tankless Supply at 866-289-4652 for further questions or to place an order.
Hurry while supplies last...
Hurry while supplies last...
Tuesday, May 20, 2014
Freeze Prevention Kit for Bosch Therm 520PN & 520HN Models
The Bosch Freeze Prevention Kit, part number 7709003775 is sold as an accessory and is approved for the Bosch Therm 520PN & 520HN heaters. The Freeze Prevention Kit is designed to provide protection for the water heater down to approximately 5 degrees F for short term conditions only. Power is required for the freeze prevention kit and plugs directly into a 110V outlet. It will not protect the appliance in areas where the temperature is routinely expected to be below freezing.
The Freeze Prevention Kit will not protect plumbing outside the appliance from freezing. Precautions should be taken to prevent this.
For more information and to order the Bosch Freeze prevention kit please call us at 866-289-4652.
Tuesday, March 12, 2013
New Bosch Greentherm C 1050 ES Condensing Tankless Water Heater
The New Bosch Greentherm C 1050 ES Condensing tankless water heater is a top performance, fully condensing gas tankless water heater from Bosch. This 199,000 BTU heater is designed for residential or commercial applications and can deliver hot water up to 140 degrees F with a 10.5 GPM flow rate. Not approved for space heating applications.
This Energy Star approved tankless water heater can produce enough hot water for 2-3 major applications in most homes or is good for most commercial applications. The Greentherm C 1050 ES is now 94% energy efficient.
Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions -- well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California -- South Coast Air Quality Management District). The Greentherm C1050ES now has NSF Certification (National Sanitation Foundation) for commercial kitchens. The Bosch Green Therm C1050ES now has an added bypass tube connecting the cold and hot water lines inside the unit so the heater can mix a little cold water with the hot to alleviate and fluctuations and maintain a more stable temperature. Standard now also are three NTC temperature sensors. With a new sensor immediately after the HEX, the Greentherm achieves benchmark temperature control. The NTCs are no longer clipped on, but rather installed into the inlet and outlet pipes.
The Bosch Greentherm C 1050 ES features an electronic ignition system and can vent through either 3 inch or 4 inch diameter PVC vent pipe either through the side wall or up through the roof. The Greentherm C950ES now takes a new concentric venting system and attaches right to the top of the heater and takes its intake air and exhaust out through one hole to the outside. The Greentherm C1050ES can now be cascaded together with up to 4 units and they can all vent into one pipe using a special venting kit to the outside. Installation can be done venting up to 4 units together into the one pipe having the heaters mounted side by side or back to back. The combustion air for the units will need to be taken from the inside of the building.
The Bosch Greentherm C 1050 ES comes with built in freeze protection. The Greentherm C1050ES also comes with an external water filter screen. The Bosch Green Therm C1050ES does not come with a 3/4" pressure relief valve, this is an accessory that would have to be ordered separately.
The freeze prevention kit is designed to provide protection for the water heater down to approximately 5°F for short term conditions only. It will not protect the appliance in areas where the temperature is routinely expected to be below freezing. The freeze prevention kit will not protect plumbing outside the appliance from freezing.
The Bosch Greentherm C 1050 ES comes with a limited 15 year warranty on the heat exchanger and 5 years on all other parts. Service and labor costs are not covered.
Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions -- well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California -- South Coast Air Quality Management District). The Greentherm C1050ES now has NSF Certification (National Sanitation Foundation) for commercial kitchens. The Bosch Green Therm C1050ES now has an added bypass tube connecting the cold and hot water lines inside the unit so the heater can mix a little cold water with the hot to alleviate and fluctuations and maintain a more stable temperature. Standard now also are three NTC temperature sensors. With a new sensor immediately after the HEX, the Greentherm achieves benchmark temperature control. The NTCs are no longer clipped on, but rather installed into the inlet and outlet pipes.
The Bosch Greentherm C 1050 ES features an electronic ignition system and can vent through either 3 inch or 4 inch diameter PVC vent pipe either through the side wall or up through the roof. The Greentherm C950ES now takes a new concentric venting system and attaches right to the top of the heater and takes its intake air and exhaust out through one hole to the outside. The Greentherm C1050ES can now be cascaded together with up to 4 units and they can all vent into one pipe using a special venting kit to the outside. Installation can be done venting up to 4 units together into the one pipe having the heaters mounted side by side or back to back. The combustion air for the units will need to be taken from the inside of the building.
The Bosch Greentherm C 1050 ES comes with built in freeze protection. The Greentherm C1050ES also comes with an external water filter screen. The Bosch Green Therm C1050ES does not come with a 3/4" pressure relief valve, this is an accessory that would have to be ordered separately.
The freeze prevention kit is designed to provide protection for the water heater down to approximately 5°F for short term conditions only. It will not protect the appliance in areas where the temperature is routinely expected to be below freezing. The freeze prevention kit will not protect plumbing outside the appliance from freezing.
The Bosch Greentherm C 1050 ES comes with a limited 15 year warranty on the heat exchanger and 5 years on all other parts. Service and labor costs are not covered.
Friday, January 25, 2013
Venting requirement for Bosch AQ4 Powervent kit
The Bosch AQ4 Powervent Kit with built-in freeze protection is designed for the Bosch Therm 520HN (Hydro Ignition) and 520PN (Pilot) tankless water heaters. This accessory allows the Bosch 520HN and 520PN tankless heaters to vent horizontally out the sidewall of the home. The AQ4 does require power to operate and operates on 120V and comes with a 3' cord to plug into the outlet.
The AQ4 is a power vent kit and will allow a horizontal vent run of up to 25 feet with one elbow (subtract 5 feet for every elbow). This kit includes the power vent motor. There is also a vent hood with damper that gets mounted on the outside of the home and this built in flapper prevents the cold air from coming in when the heater is not in use. Please make sure to refer to the installation manual and that the hood is properly installed so that the flapper stays closed all the way when not in use.
The AQ4 powervent kit comes with a 5" to 4" reducer. This reducer fits right on top of the heater and then you would use 4" type B, C or stainless steel AL29-4C venting (not included) to go to the powervent motor. There is a minimum of 2 feet of straight pipe required between the reducer and the blower motor. Any venting (if needed) "after" the powervent motor must be 4" sealed stainless steel AL29-4C. The Blower motor should be placed right at the opening where the termination hood with damper is to be installed on the sidewall of the home.
The AQ4 powervent kit is activated by a flow switch and gets attached to the cold water pipe on the right side of the unit just before it goes into the heat exchanger.
The blower motor for the AQ4 has a new design and includes a delay setting that goes from #1 - #5 and this lets the installer set the blower motor so that when it senses flow it can be delayed for 1 - 5 seconds before the blower comes on. This will help to ensure the pilot and burners light without getting sucked out by the blower motor.
There is also a built in safety spill switch that gets attached to the tankless water heater and this will detect high temperatures from any flue gases in the case the blower motor does not activate and will shut the unit completely down.
The AQ4 powervent kit comes with a 5" to 4" reducer. This reducer fits right on top of the heater and then you would use 4" type B, C or stainless steel AL29-4C venting (not included) to go to the powervent motor. There is a minimum of 2 feet of straight pipe required between the reducer and the blower motor. Any venting (if needed) "after" the powervent motor must be 4" sealed stainless steel AL29-4C. The Blower motor should be placed right at the opening where the termination hood with damper is to be installed on the sidewall of the home.
The AQ4 powervent kit is activated by a flow switch and gets attached to the cold water pipe on the right side of the unit just before it goes into the heat exchanger.
The blower motor for the AQ4 has a new design and includes a delay setting that goes from #1 - #5 and this lets the installer set the blower motor so that when it senses flow it can be delayed for 1 - 5 seconds before the blower comes on. This will help to ensure the pilot and burners light without getting sucked out by the blower motor.
There is also a built in safety spill switch that gets attached to the tankless water heater and this will detect high temperatures from any flue gases in the case the blower motor does not activate and will shut the unit completely down.
Friday, November 23, 2012
Bosch 345/450 ESR Tankless Recirculating Heaters
The gas tankless recirculating heaters, Bosch 345 ESR and the Bosch 450 ESR are temperature modulated and have electronic ignition. The ESR stands for Electronic ignition, Sealed combustion and Recirculating. These recirculating heaters are designed and approved for heating and recirculating potable water in conjunction with an indirect storage tank.
The 345/450 ESR are not approved or designed for closed loop heating applications. The ESR units are not a tankless heater as they have no flow switch to respond to flow. Instead it’s a recirculating water heater designed for tank loading applications. When an AquaStat (not included) hooked up to a tank tells the ESR that water needs to be brought back up to temperature, the ESR will tell a circulator (not included) to turn on to create flow through the heater to reheat the water in the tank. Please refer to the installation and applications manual.
The 345/450 ESR are not approved or designed for closed loop heating applications. The ESR units are not a tankless heater as they have no flow switch to respond to flow. Instead it’s a recirculating water heater designed for tank loading applications. When an AquaStat (not included) hooked up to a tank tells the ESR that water needs to be brought back up to temperature, the ESR will tell a circulator (not included) to turn on to create flow through the heater to reheat the water in the tank. Please refer to the installation and applications manual.
The Bosch 345 ESR recirculating heater is a 95K BTU unit and can deliver 3.5 GPM at a 45 degree rise. Efficiency is 82%
The Bosch 450 ESR recirculating heater is a 120K BTU unit and can deliver 4.5 GPM at a 45 degree rise. Efficiency is 81%
The temperature control range for both heaters can be set anywhere from 115°F (45°C) - 190°F (90°C)
The 345/450 ESR comes with a standard ¾” pressure relief valve.
The 345/450 ESR has a special built-in freeze prevention cycle and is controlled by a sensor. Freeze protection is always assured by the operation of the appliance. If the primary NTC (temperature) sensor detects temperatures 9°F below the selected temperature, the appliance starts on minimum power until the sensor reads selected temperature. In the case of minimum set point temperature then it will start at 41°F. The use of non-potable additives like glycol is not approved.
The Bosch 345 ESR and the Bosch 450ESR must be installed indoors according to the provided installation manual. The 345/450 ESR is NOT approved for outdoor installations.
The Bosch 345/450 ESR recirculating heaters must be vented in accordance with the installation manual and require Category III 3” stainless steel sealed venting for the exhaust. These heaters are direct vent units and must be vented directly to the outside in accordance with the installation manual. These heaters cannot be combination vented with any other appliance. The intake should be taken from the outside and 3”PVC or other material can be used only for the intake air.
The Bosch 345/450 ESR recirculating heaters are gas specific so they cannot be converted from one gas type to another.
Tuesday, July 17, 2012
Bosch Protankless C800ES Condensing unit
The Bosch Protankless C800ES Condensing tankless water heater is a top performance, fully condensing gas tankless water heater from Bosch. This 199,000 BTU heater is designed for residential applications and can deliver hot water up to 140 degrees F with a 10.5 GPM flow rate. Not approved for space heating applications.
This Energy Star approved tankless water heater can produce enough hot water for 2-3 major applications in most homes.
Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions -- well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California -- South Coast Air Quality Management District).
The Bosch C800ES features an electronic ignition system and can vent through either 3 inch or 4 inch diameter PVC vent pipe either through the side wall or up through the roof. A 3" PVC concentric vent kit is available for venting vertical or horizontal and allows the unit to be vented and also have its intake air from the outside through one hole.
The Bosch C800ES does not come with the built-in Freeze Protection kit but it is available as an accessory. The C800ES also does not come with an external water filter screen but is also available as an accessory. The Bosch C800ES does come with a standard 3/4" PRV. The Bosch Therm C 1050 ES tankless water heater is about the same as the C800ES except that it comes with the freeze protection kit. The Bosch Integra 500 is also about the same as the C800ES and the C1050ES and it comes with the freeze protection, 3/4" PRV and the external water filter screen. All three tankless heaters are 199,000 BTUs and have the same temperture rise.
The freeze prevention kit is designed to provide protection for the water heater down to approximately 5°F for short term conditions only. It will not protect the appliance in areas where the temperature is routinely expected to be below freezing. The freeze prevention kit will not protect plumbing outside the appliance from freezing.
The Bosch C800ES comes with a limited 15 year warranty on the heat exchanger and 5 years on all other parts. Service and labor costs are not covered.
Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions -- well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California -- South Coast Air Quality Management District).
The Bosch C800ES features an electronic ignition system and can vent through either 3 inch or 4 inch diameter PVC vent pipe either through the side wall or up through the roof. A 3" PVC concentric vent kit is available for venting vertical or horizontal and allows the unit to be vented and also have its intake air from the outside through one hole.
The Bosch C800ES does not come with the built-in Freeze Protection kit but it is available as an accessory. The C800ES also does not come with an external water filter screen but is also available as an accessory. The Bosch C800ES does come with a standard 3/4" PRV. The Bosch Therm C 1050 ES tankless water heater is about the same as the C800ES except that it comes with the freeze protection kit. The Bosch Integra 500 is also about the same as the C800ES and the C1050ES and it comes with the freeze protection, 3/4" PRV and the external water filter screen. All three tankless heaters are 199,000 BTUs and have the same temperture rise.
The freeze prevention kit is designed to provide protection for the water heater down to approximately 5°F for short term conditions only. It will not protect the appliance in areas where the temperature is routinely expected to be below freezing. The freeze prevention kit will not protect plumbing outside the appliance from freezing.
The Bosch C800ES comes with a limited 15 year warranty on the heat exchanger and 5 years on all other parts. Service and labor costs are not covered.
Saturday, June 11, 2011
Bosch Therm 660EF/660EFO Tankless Water Heaters
The new Bosch Therm 660 EF and Bosch 660 EFO are direct vent units. These units take thier combustion air from the area they are installed in. The 660EF/EFO are compact in design for space saving installations and are only 14" x 20 1/2" x 7". The 660EF/EFO are designed and approved for reciculation and space heating applications. The units have electronic ignition and come equipped with built in freeze protection. The Bosch Therm 660EF vents either vertically or horizontally using 3" or 4" stainless steel venting #AL29-4C.
The 660EF is manufactured in Japan and comes with a different vent connection than the 830ES, 940ES, etc. The 660EF needs to be vented with single wall stainless steel venting and is designed to connect directly to "Bosch Vent". However, a Z-Vent adapter (Part # 2SVSWB03) allows for the use of 3" Z-vent stainless venting to be used. Global Pro Tankless Supply carries the adapter and all the Z-Vent stainless steel venting to install the Bosch Therm 660EF. We are the exclusive distributor for the AQ5EF Side-wall Vent Kit for the Bosch 660EF tankless water heater.
The Bosch Therm 660EFO outdoor unit comes ready for installation and does not require any additional cap or venting.
Without the Z-Vent adapter (Part # 2SVSWB03), the customer would have to purchase different venting ("Bosch Vent") to use for the 660EF.
The Bosch Therm 660 EFO is our most compact outdoor model and is loaded with features you’d expect from Bosch, including freeze protection and built-in high temperature capability (160°F).
The Bosch Therm 660 EFO is a good replacement for the GWH425HNO and the 125BO as these units have been discontinued.
The Bosch Therm 660EF and Bosch Therm 660EFO have an excellent warranty:
The 660EF is manufactured in Japan and comes with a different vent connection than the 830ES, 940ES, etc. The 660EF needs to be vented with single wall stainless steel venting and is designed to connect directly to "Bosch Vent". However, a Z-Vent adapter (Part # 2SVSWB03) allows for the use of 3" Z-vent stainless venting to be used. Global Pro Tankless Supply carries the adapter and all the Z-Vent stainless steel venting to install the Bosch Therm 660EF. We are the exclusive distributor for the AQ5EF Side-wall Vent Kit for the Bosch 660EF tankless water heater.
The Bosch Therm 660EFO outdoor unit comes ready for installation and does not require any additional cap or venting.
Without the Z-Vent adapter (Part # 2SVSWB03), the customer would have to purchase different venting ("Bosch Vent") to use for the 660EF.
The Bosch Therm 660 EFO is our most compact outdoor model and is loaded with features you’d expect from Bosch, including freeze protection and built-in high temperature capability (160°F).
The Bosch Therm 660 EFO is a good replacement for the GWH425HNO and the 125BO as these units have been discontinued.
The Bosch Therm 660EF and Bosch Therm 660EFO have an excellent warranty:
- 15 year limited warranty on heat exchanger; 3 year warranty if used in direct recirculating applications
- 15 year warranty on heat exchanger if used if recirculated through a storage tank such as the Ariston mini-tank
- 5 year warranty on all other parts
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