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UNIT HEATER
Section 1. GENERAL SPECIFICATION- CUH RANGE
l.l Basic Information
There are eight types of heater in the CUH... range covered by these instructions.
1. CUHA 60 to CUHA 240 Manual ignition with axial fans.
(22.5kW (76770 Btu/hr) to 89kW (303668 Btu/hr) Gross heat input)
2. CUHB 60 to CUHB 240 Manual ignition with centrifugal fans.
(22.5kW (76770 Btu/hr) to 89kW (303668 Btu/hr) Gross heat input)
3. CUHC 60 to CUHC 240 Manual ignition as CUHB but with the fans encased to allow inlet ducting.
(22.5kW (76770 Btu/hr) to 89kW (303668 Btu/hr) Gross heat input)
4. CUHD 60 to CUHD 240 Manual ignition without fan for installing into ducting.
(22.5kW (76770 Btu/hr) to 89kW (303668 Btu/hr) Gross heat input)
5. CUHA/A 60 to CUHA/A 380 Automatic ignition axial fans.
(22.5kW (76770 Btu/hr) to 140kW (477680 Btu/hr) Gross heat input)
6. CUHB/A 60 to CUHB/A 380 Automatic ignition ,with centrifugal fans.
(22.5kW (76770 Btu/hr) to 140kW (477680 Btu/hr) Gross heat input)
7. CUHC/A 60 to CUHC/A 380 as CUHB/A but with the fans encased to allow inlet ducting.
(22.5kW (76770 Btu/hr) to 140kW (477680 Btu/hr) Gross heat input)
8. CUHD/A 60 to CUHD/A 380 Automatic ignition, without fans for installing into ducting .
(22.5kW (76770 Btu/hr) to 140kW (477680 Btu/hr) Gross heat input)
Combat CUH... ranges of unit Air Heaters are type B
11
appliances for vertical flue which are designed
to be suspended or shelf mounted.
These heaters are Cat II
2H3+
appliances for use with natural gas or L.P.G. as stated on the heater data
plate, and are intended for indoor installation only.
They must be installed in accordance with local regulations and the requirements of Section 3 of these
Instructions.
A permanent electrical supply of 230 volts 50 Hz, single phase is required for all models and all
models must be earthed.
ON/OFF, temperature and time control may be obtained by use of the Combat range of control consoles,
or by the use of individual controls as per the circuit diagrams in Section 5.
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