Roberts Gorden BH20UT Material Specifications, Combustion and Tubes, Reflectors, Electrical

BLACKHEAT® INSTALLATION OPERATION AND SERVICE MANUAL

SECTION 18: SPECIFICATIONS

18.1 Material Specifications

18.1.1 Combustion and Tubes

100 mm dia. 16 gauge heat treated aluminised mild steel.

18.1.2 Reflectors

NS3 H14 aluminium or 1.4016 2R stainless steel (option).

18.2 Heater Specifications

18.2.1 Sequence Controller

Fully automatic, three try, direct spark, 100% shut off ignition flame rectification module.

18.2.2 Electrical

Rating: 230V, 50 Hz, 1 Ø, 1 A

Connection: 3 pin moulded plug

18.2.3 Gas Supply

Connection: Rc1/2 (1/2" BSP int)

Natural G20:

Minimum - Inlet 15 mbar (6 in wg)

Maximum - Inlet 50 mbar (20 in wg)

Natural G25:

Minimum - Inlet 17.5 mbar (7 in wg)

Maximum - Inlet 50 mbar (20 in wg)

LP Gas (Propane or Butane):

Minimum - Inlet 32.5 mbar (13 in wg)

Maximum - Inlet 50 mbar (20 in wg)

18.3 Venting Specifications

18.3.1 Fans

BH-15, 20, 25, 30	Model: Torin DSF 133-42
BH-25 EF, 30 EF, 35 EF,
BH-35, 40, 45	Model: Torin DSA 524-202
BH-40 EF, 45 EF,
50 EF, BH-50	Model: Magnetek JF1G
BH30DL, 40DL, BH50DL/EF,
60DL/EF, 70DL/EF	Model: Magnetek JF1G
Multiburner	Model: Airflow 83 BTLW
..................	Model: Airflow 90 BTLW

Consult the manufacturer for availability of alternate fans.

18.3.2 Flue

When fitted, the flue must be 100 mm, or greater in diameter, and must conform to National Codes. The flue must be self supporting. Inlet must be 100 mm diameter.

Multiburner - Flue must be 150 mm diameter and will be sized to suit arrangement and will connect to the fan. Flue material must conform to National Codes. The flue must be self supporting.

18.4 Suspension Specifications

Hang heater with materials with a minimum working load of 33 kg.

18.5 Controls Specifications

Time switches, thermostats, etc. can be wired into the electrical supply. External controls supplied as an optional extra.

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