® User’s Information Manual Gas-Fired Water Boilers If the information in this manual is not followed exactly, a fire or explosion may result, causing property damage, personal injury or loss of life. Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS — • Do not try to light any appliance. • Do not touch any electrical switch; do not use any telephone in your building.
GV90+ gas-fired water boiler — User’s Information Manual Please read this page first How to use this manual . . . To . . . Learn precautions Prevent air contamination Maintain boiler 2 Read/use . . . Page . . . Warnings and definitions 3 Laundry room or pool — make sure boiler air is piped to boiler per manual. Read list of air contaminants you must avoid. Have boiler air piped in if you can’t avoid. 4 Set up a plan for maintaining the boiler using the schedule included in this manual.
GV90+ gas-fired water boiler — User’s Information Manual STOP!! — Read before proceeding User — Have this boiler serviced/ inspected by a qualified service technician, at least annually. Failure to comply with the above could result in severe personal injury, death or substantial property damage. When calling or writing about the boiler— Please have the boiler model number from the boiler rating label and the CP number from the boiler jacket.
GV90+ gas-fired water boiler — User’s Information Manual Prevent combustion air contamination — Air contamination Combustion air contamination: Common household and hobby products often contain fluorine or chlorine compounds. When these chemicals pass through the boiler, they can form strong acids in the vent system or boiler. The acid can eat through the vent or boiler wall, causing serious damage and presenting a possible threat of flue gas spillage into the building.
GV90+ gas-fired water boiler — User’s Information Manual Perform maintenance per schedule below Figure 2 Service and maintenance schedules Service technician Owner maintenance (see Boiler Manual for instructions) (see following pages for instructions) • Check boiler area Daily • Check air openings • Check pressure gauge • Check boiler interior piping • Check venting system Annnual start-up Monthly • Check air vents • Check condensate drain system • Check relief valve Follow the procedures li
GV90+ gas-fired water boiler — User’s Information Manual User maintenance procedures Boiler must be serviced and maintained The boiler should be inspected and started annually, at the beginning of the heating season, only by a qualified service technician. In addition, the maintenance and care of the boiler designated on page 5 and explained on the following pages must be performed to assure maximum boiler efficiency and reliability.
GV90+ gas-fired water boiler — User’s Information Manual User maintenance procedures MONTHLY Maintenance (continued) Check boiler interior piping 1. Remove boiler jacket top. 2. Visually inspect for leaks around internal piping, circulators, relief valve and other fittings. Immediately call a qualified service technician to repair any leaks. Have leaks fixed at once by a qualifed service technician. Continual fresh makeup water will reduce boiler life.
GV90+ gas-fired water boiler — User’s Information Manual User maintenance procedures MONTHLY Maintenance (continued) Check condensate system 1. NOTICE — To improve clarity, this illustration of the condensate trap is shown with no air inlet pipe attached. If your boiler has an air pipe connected here, DO NOT tamper with it. The trap is also shown as item m on page 11. 2. Inspect the condensate P-trap (item 1 in the illustration at right). The trap is translucent.
GV90+ gas-fired water boiler — User’s Information Manual User maintenance procedures EVERY 6 MONTHS Maintenance (continued) Oil blower motor Figure 4 Blower motor 1. Remove the jacket top panel to access the blower motor. 2. Use only Anderol 465. DO NOT use household universal oils. Use only Anderol 465 to lubricate the blower motor. Do not use common universal household oils. 3. See Figure 4 4. Place a few drops of oil in each of the two oiler cups on the side of the blower motor.
GV90+ gas-fired water boiler — User’s Information Manual How it works . . . 1 Integrated boiler control The integrated boiler control (IBC) responds to signals from the room thermostat, air pressure switch, inlet water sensor and boiler limit circuit to operate the circulators, gas valve, igniter and blower. When a room thermostat calls for heat, the IBC starts the system circulator and blower. The IBC runs the blower to purge the boiler flue passages, then turns on the igniter and lets it warm up.
GV90+ gas-fired water boiler — User’s Information Manual GV90+ Water Boiler Part number 550-142-055/0411 11
GV90+ gas-fired water boiler — User’s Information Manual Operating instructions Before attempting to start the boiler, check the boiler pressure temperature gauge. If boiler and system are full of water and properly pressurized, the gauge should read at least 12 psig on most systems. Operating the boiler without proper water content will damage boiler and controls and could result in severe personal injury, death or substantial property damage.
GV90+ gas-fired water boiler — User’s Information Manual Common problems and solutions Symptom Common Causes Possible Corrections Rapid cycling — boiler turns on and off frequently Thermostat installed where drafts or heat affect reading Locate thermostat on inner wall away from heat sources or cool drafts. Heat anticipator in thermostat adjusted incorrectly Adjust thermostat per manufacturer’s instructions. Incorrect limit setting Set limit according to system needs. Maximum setting is 200°F.
GV90+ gas-fired water boiler — User’s Information Manual Common problems and solutions (continued) Symptom Common Causes Possible Corrections Popping or percolating noise heard in boiler Mineral deposits in sections due to constant use of makeup water Call qualified service technician to delime boiler, if necessary. In some cases, deposits will be too heavy to remove with de-liming procedures. Have qualified service technician repair leaks to eliminate need for constant makeup water.
GV90+ gas-fired water boiler — User’s Information Manual NOTES Part number 550-142-055/0411 15
GV90+ gas-fired water boiler — User’s Information Manual
