Bosch WR 400-7.K Series Operations Instructions

6 720 606 560 CA (05.05) ALASTRAVAN DISTRIBUTORS, LTD.123 Charles StreetNorth Vancouver, B.C. V7H 1S1Phone Canada: (604) 929-5488Phone USA: (206) 86

10 6 720 606 560NO SPARK AT THE PILOT1. ON/Off switch is not “On” (Position ).The On/Off switch is located behind the flipdown cover plateon the fron

116 720 606 560PILOT LIGHTS BUT BURNERSWILL NOT COME ON1. Confirm water valve assembly is working properly.2. Confirm the flame sensor is in its prope

12 6 720 606 5606. Parts in water flow valve are corroded so that thegas valve is not fully opening.Contact your service person or call:Canada 1-800-6

136 720 606 560Fig.15 - Diagram of WR 400-7.K..1. Heat exchanger2. Pilot assembly3. Burner manifold gas pressure test nipple4. Main gas burner5. Pilot

14 6 720 606 560Fig. 16 - INTERIOR COMPONENTS DIAGRAM AND PARTS LIST

156 720 606 560Fig. 16INTERIOR COMPONENTS DIAGRAMAND PARTS LIST WR400-7K...1 Front cover ¤ 8 705 421 7422 Temperature adjustment knob comp. ¤ 8 702 00

0

2 6 720 606 560DIMENSIONSMaximum hydrostatic water pressure - 1.03 MPa (150 p.s.i.)Maximum recommended working pressure - 0.69 MPa (100 p.s.i.)Minimum

36 720 606 560FORWARDThe design of the WR400-7.K.. complies with CAN 1-4.3and ANSI Z21.10 (latest edition) as an instantaneous gaswater heater. In add

4 6 720 606 560For either a confined or unconfined space in a building oftight construction with inadequate infiltration, air must bedrawn from the ou

56 720 606 560DRIP TRAYIf the water heater is being mounted above a floor ofcombustible construction the drip tray (shipped loose in thecarton with th

6 6 720 606 560RELIEF VALVEThe listed pressure relief valve supplied must be installednear the hot water outlet at time of installation of the heater.

76 720 606 560OPERATING INSTRUCTIONSWARNING!If the water heater has been damaged or exposed to fire orsooting, or if any part has been underwater, do

8 6 720 606 560Your appliance dealer and/or local gas supplier should beconsulted in regard to any high altitude installation. If fieldadjustment is r

96 720 606 560MAINTENANCE AND SERVICEApproximately once a year, the Bosch should be checked,cleaned and serviced as necessary. To remove the front cov