GSW 72090 manual VII Combo Heating, System Requirements

Page 21

VII) COMBO HEATING

This section serves as a guide for the installation and use of “Combo” heating systems utilizing a domestic water heater which has been specifically approved for such use (see Figure 19). It is written for those knowledgeable in the required trades and professionals involved in the design and installation of Combo Heating Systems.

It is the responsibility of the installer/designer to follow all applicable codes to ensure the effectiveness and safety of the installation.

System Requirements

The following requirements must be met for the installation of Combo Heating Systems:

1.The piping and components connected to the water heater for the space heating applications shall be suit- able for use with potable water. The system should be installed with new, non-ferrous piping. Do not use pumps, valves, fittings, solder, gluing and pipe sealant that are not completely compatible with potable water piping.

2.A water heater which will be used to supply potable water must not be connected to any heating system or components previously used with a non-potable water heating appliance. Do not use piping that has been treated with chromates, broiler seal or other chemicals and do not add chemicals to the water heating piping. Do not introduce toxic chemicals, such as those used for boiler treatment, into the potable water used for space heating.

3.Do not use this heater as a replacement for an existing boiler installation.

4.If the space heating water system requires water with temperatures in excess of 60°C (140°F), a mixing valve, or other means to temper the water and reduce scald hazard potential, must be installed in the potable hot water supply.

5.If the heater is installed with a back-flow preventer on the incoming water line or in a closed system, a diaphragm-type expansion tank must always be installed in the system to prevent the T&P from relieving due to thermal expansion.

6.Proper sizing of the water heater for the given space and potable heating application is essential to ensure adequate heating capacity. The sizing and installation of such combination system must be performed by quali- fied personnel and be in accordance with public utility requirements and/or codes having jurisdiction.

The sizing of the water heater should be based on the design heat loss of the structure to be heated plus the potable water requirements.

IT IS IMPORTANT THAT THE WATER HEATER USED BE OVERSIZED TO ALLOW ADEQUATE HEATING AND POTABLE WATER HEATING CAPACITY.

CHECK VALVE

CIRC. PUMP

HOT WATER

COLD TO

TO HOUSE

WATER HEATER

 

 

 

 

 

 

 

 

WATER

HEATER

AIR

HANDLER

MASSACHUSETTS

CODE DOES NOT

ALLOW THIS TYPE

OF INSTALLATION.

RADIATOR OR RADIANT FLOOR PIPING ARE

VIABLE ALTERNATIVES TO AIR HANDLER.

Figure 19 Example Of Combo Heating Piping Schematic

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Contents What to do if YOU Smell GAS For Your SafetyPage Viii Troubleshooting Guide IX Repair Parts IllustrationLimited Warranty For Installations in Canada Introduction II SafetyFor Installations in the United States User ResponsibilitiesSafety Warning Scalding Safety Warning Flammable VapoursSafety Warning Carbon Monoxide Backflow PreventionClearances and Accessibility Location RequirementsEarthquake Zones Failure to Properly Install this Heater MAY Gas SupplyResult in a Fire Hazard Gas Leak Testing Gas PressureGas line purging Confined Space Air Requirements for Canadian Installations Air RequirementsLocal Codes Confined Space Air Requirements for Installations Water Supply Exhaust VentingLicensed plumber repair it Valve is dripping or leaking, have aDo not plug valve Do not remove valveInstallations Check Temperature And Pressure Relief ValveDischarge Line Temperature Adjustment IV Operating Instructions Water Temperature RegulationWhat to do if YOU Smell GAS Lighting Instructions Robertshaw 110RLighting Instructions Robertshaw 220R Avant Lighting Instructions White-Rodgers 37CEmergency Shut Down Operation Burner FlamesChecking the Draft Operating ConditionsVI Maintenance Draining and FlushingPeriodic Inspection External Cleaning Flame-arrester Resetting and Replacing the Safety TCO SwitchTemperature and Pressure Relief Valve System Requirements VII Combo HeatingProblem Possible Causes Correction Viii Troubleshooting GuideThermostat Fails to Shut Repair Parts IX Repair Parts IllustrationWHO is Covered Limited WarrantyHOW the Original Owner can Make a Warranty Claim

72090 specifications

The GSW 72090 is a remarkable addition to the world of modern heating solutions, designed to provide efficient and effective space heating. It epitomizes advanced technology, reliability, and user-centric design, making it an ideal choice for homes and commercial spaces alike.

One of the main features of the GSW 72090 is its impressive heating capacity. Engineered to deliver optimal warmth, it can efficiently heat larger areas, ensuring that spaces remain comfortable even during the coldest months. The unit’s high-grade alloy construction enhances durability and helps maintain consistent performance over time.

A vital technology integrated into the GSW 72090 is its modulating control system. This system intelligently adjusts the temperature output based on the current heating demand, optimizing energy usage and contributing to lower utility bills. This efficiency not only benefits the consumer but also has a positive impact on the environment by reducing greenhouse gas emissions.

The GSW 72090 also boasts a sleek and modern aesthetic, making it an attractive addition to any space. Its design allows for easy installation and maintenance, ensuring that users can focus on comfort without worrying about the complexities of upkeep. The unit operates quietly, providing a peaceful environment without the disruptive noises often associated with traditional heating systems.

Incorporating safety features is another key characteristic of the GSW 72090. It includes overheat protection, which automatically turns the unit off if it detects excessive temperatures, ensuring a safe environment for occupants. Additionally, the product is constructed with materials that are resistant to corrosion and wear, enhancing longevity.

As an environmentally conscious option, the GSW 72090 is designed to comply with stringent energy efficiency regulations. Its performance not only meets but often exceeds the required standards, making it a smart choice for those looking to reduce their carbon footprint.

Overall, the GSW 72090 stands out due to its combination of advanced technologies, user-friendly features, aesthetic appeal, and commitment to safety and efficiency. Its multi-faceted capabilities make it a prime option for anyone seeking reliable and effective heating solutions in their home or business.
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