OSO 20 RI Parts List

20 Series Spare Parts List

PART NUMBER 20 SERIES DIRECT & INDIRECT ITEM DESCRIPION

71259 3kW Oso immersion heater Single Phase 240V

71270 5kW Oso immersion heater Single Phase 240V

73450 Immersion heater box key 1 ¼” thread 50mm face

74000 Electric box cover direct

74060 Electric box cover indirect

80030 Surface mounted thermostat direct & indirect

C510506 Fittings pack (includes items marked *)

510511 Multibloc* (Includes pressure reducing valve, line strainer, check valves,

Expansion relief valve, Balanced cold water point) (Fig 12)

202108 Flexible Hose 220mm*

219005 Tundish* 15mm x 22mm

250006 T-piece* 15mm x ½”FI x 15mm

250445 Elbow/drain cock* ¾” MI x 22mm

250440 Commissioning valve* (½” MI drain cock)

214009 Expansion relief cartridge 8 bar (Fig 13)

510505 Expansion relief valve 8 bar (Fig 11)

100510 Pressure reduction cartridge 2.1bar blue dial (Fig 10)

100511 Adjustable Pressure reduction cartridge 0.5 - 5 bar blue dial

510501 Pressure reduction cartridge 2.1bar green dial

510504 Adjustable Pressure reduction cartridge 0.5 - 5 bar green dial

550853 ½” Pressure & Temperature Relief Valve

92000 Motorised valve Honeywell V4043