BOSCH WR430-3K
Principle of Operation:
When a hot water faucet is opened, the flow of water through the heater causes the gas valve to open. At the same time a microswitch is activated which sends a spark to the pilot. The flame sensor confirms that the pilot has been lighted and allows burners to ignite. The pilot goes out. The power exhaust system runs as long as the burners are on. The heat exchanger coils absorb the heat generated by the burners and transfer heat to the water. When the hot water faucet is shut off, the gas valve automatically closes and the burners turn off, followed immediately by the exhaust system. Your hot water faucet is an ignition key to turn on the water heater, giving you control over your hot water energy use. Every time you turn off your hot water faucet, the energy consumption for hot water returns to zero.
FEATURES
-Power Venting with safety shutoff
-Electronic Pilot Ignition
-On/Off switch to activate system
-High Quality Materials for Long Working Life.
-Copper heating coils for endless supply of hot water.
-Burner output proportional to hot water flow demand for maximum energy efficiency.
-Safety flame sensor at pilot burner.
-Automatic over heating protection
-Stainless steel burners with stabilized blue flame.
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-Compact space saver: mounts on a wall with two hooks.
-Easily removable
-Easy one person installation.
-Adjustable water flow restrictor ensure that water flow demand will not exceed the heating capacity of the heater.
| NAT. GAS | PROPANE | |
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max. | 130 000 Btu/hr | 125 000 Btu/hr | |
Gas Input |
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28 000 Btu/hr | 28 000 Btu/hr | ||
min. | |||
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Water Connection 1/2” Thread fitting
H x W x D 29 3/4” x 18 1/4” x 8 3/4”
Vent 4” (Category III Gas Appliance)
Max. lineal vent pipe length 15’ (4.5m)
Gas Connection 1/2” NPT thread
Shower pressure 40 Psi
Min. Water Pressure 18 Psi (no fittings attached)
Max. Water Pressure 150 Psi
Shipping Weight 50.6 LB
Net Weight 44 LB
2.5GPM at 90° rise (32°C) (9.5 l)
5.0GPM at 45° rise(16°C) (19.5 l) Min. Water Flow 1/2 gal/min 120V/60Hz 1.2 Amps
LP GAS Supply Pressure inlet. min. | 11”W.C.* | |
LP GAS regulator outlet pressure 9.9”W.C.* | ||
Natural Gas Pressure inlet | min.: | 7”W.C.* |
Natural Gas Regulator Pressure 5.38 W.C.**
*Inlet gas pressure must not exceed this value ** For purposes of input adjustment
ELECTRICAL 3 ft. ( 0.9 m) power cable supplied c/w CSA 3 prong plug.
UNPACKING THE BOSCH WR430-3K HEATER
This heater is packed securely. The box includes two water connection fittings, a control knob, a gas pressure regulator, a pressure relief valve, an incandescent particle tray, two hooks for hanging the heater, this manual. Do not lose this manual as there is a charge for replacement.
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