Roberts Gorden Compact Tubular Unit Heaters CTCU 27 - Manual (Page 43)

SECTION 16: R EMOVAL AND R EPLACEMENT P ARTS
37 of 42
16.2 Burner Compartment
16.2.1 Burner Injectors
Remove flexible
air duct from spigot
Viewing port
for flame probe
Flame Probe
Burner
Compartment
Cover
Ignition Electrode
Remove screws and
pull off burner cover
The burner compartment is a sealed
compartment. Following any work,
re-seal the compartment with the gas
pipe rubber seal fully in place and all
screws fitted and tight.
MODEL CTCU-7 CTCU-11 CTCU-15 CTCU-22 CTCU-27 CTCU-32
Injector Quantity 2 3 4 5 6 7
Natural Gas (G20)
Injector size mm Ø 1.78 1.85 1.85 2.06 2.057 2.057
in Ø 0.070 0.073 0.073 0.081 0.081 0.081
Marking 50 49 49 46 46 46
RG P/N 91930050 91930049 91930049 91930046 91930046 91930046
Natural Gas (G25)
Injector size mm Ø 1.99 2.06 2.06 2.26 2.261 2.261
in Ø 0.0785 0.081 0.081 0.089 0.089 0.089
Marking 47 46 46 43 43 43
RG P/N 91930047 91930046 91930046 91930043 91930043 91930043
LPG Propane (G31) and LPG Butane (G30)
Injector size mm Ø 1.18 1.18 1.18 1.25 1.25 1.25
in Ø 0.0465 0.0465 0.0465 0.049 0.049 0.049
Marking 56 56 56 1.25 1.25 1.25
RG P/N 91930056 91930056 91930056 91930125 91930125 91930125
Remove manifold
screws and pull
out manifold.
Manifold
Burners
Injectors
Manifold
Mounting
Bracket Gromet
Unscrew
Injectors
Manifold
Marking
Ensure gas tight fitting of injectors.
Ensure correct alignment with burners.
Ensure all pipe joints are gas tight.