Rheem GX90-640, GX90-550 manual Other Features, Recommended Specifications for trade reference only

Xtreme Gas continued.

Other Features:

•Insulation – sag and moisture proof fiberglass insulation surrounds the storage tank to minimize heat loss.

•Anode rods – patented design utilizes multiple magnesium rods to ensure long life and corrosion resistance.

•Temperature and pressure relief valve – AGA/ASME rated and factory installed.

•Hand-hole cleanout – for removal of lime/ sediment deposits.

•Manual reset high limit – all models are factory equipped with a manual reset high limit to meet the code requirements of many states.

•Gas control system – fully adjustable thermostat from 100°F to 180°F, 24 volt combination gas valve includes main gas pressure regulation,

On-Off manual valve, 120/24 volt transformer, and high limit temperature cut-out.

•Round premix burners – precision burners are formed from high chromium stainless steel.

Recommended Specifications (for trade reference only)

Water heater(s) shall be XTREME model ________________, manufactured by RHEEM-RUUD, having gas input

of __________ Btu/hr. and a recovery rate of _____________ GPH at a 100°F temperature rise when tested and

certified at ____________ thermal efficiency. Water heater(s) shall have a storage capacity of 90 gallons. Water

heater(s) shall have the U.L. seal of certification and supplied with a factory installed AGA/ASME rated temperature and pressure relief valve. Tank(s) shall be furnished with a tube bundle having a double coating of high temperature porcelain enamel and furnished with magnesium anode rods rigidly supported. Water heater(s) shall meet or exceed the thermal efficiency and standby loss requirements of current ASHRAE standards. Tanks shall have a working pressure rating of 150 psi, and shall be completely factory assembled, including a pressure regulator properly adjusted for operation on ___________ gas with chromium stainless steel burners. Controls will be

arranged for safety shutoff in event of pilot failure. Water heater(s) shall have front and rear side inlet/outlet water connections. Water heater(s) shall be covered by a three year limited warranty against tank leaks.

Add “A” for ASME construction

Water heater(s) shall be constructed in accordance with the requirements of the ASME Boiler and Pressure Vessel Code, Section IV Part HLW.

Limited Warranty

This product features a three year limited warranty against tank leaks. Please refer to Commercial Warranty Information brochure for complete warranty information.

In keeping with its policy of continuous progress and product improvement, Rheem-Ruud reserves the right to make changes without notice.

Rheem Water Heating • 101 Bell Road, Montgomery, Alabama 36117-4305 • www.rheem.com

Rheem Canada Ltd./Ltée,128 Barton Street West, Hamilton, Ontario L8N 3P3

P R I N T E D I N U. S . A 0 7 / 0 7 W P FORM NO. RR102C - 15 Rev. 4