Ambirad COBRA CB40 설치, 작동, 유지보수 및 서비스 매뉴얼 - 페이지 3
{카테고리_이름} Ambirad COBRA CB40에 대한 설치, 작동, 유지보수 및 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Ambirad COBRA CB40 19 페이지. Gas fired radiant tube heaters
페이지 인쇄1 Gas supply/connection/
technical data
This heater is for use on:-
Natural gas G20, 20 mbar.
The gas connection on the Cobra heater is
R 1 /2 ( 1 /2 in. BSP internal thread).
Natural gas
Max supply pressure 25 mbar
Min supply pressure 17 mbar
Correct burner gas pressure is indicated in
the table below.
To gain access to the gas connection, see
section 10.
Ambi-Rad heaters must be installed in
accordance with the relevant provisions
of the Gas Safety (Installations and Use)
Regulations 1998. Due account should
also be taken of any obligations arising
Technical data
Injector gas pressure
Model
CB40
Model
Nominal heat input gross
Natural Gas (G20)
Injector size
Number of injectors
m 3 /hr
Gas flow rate
Gas supply
Gas pressure
Natural Gas (G20)
Electrical supply
Current rating
External fuse rating
Ignition
Noise level dBA @ 3m 'free field'
Dimensions
Flue diameter
Ducted air diameter
Total installed weight
Minimum mounting height m
Electrical motor details
Fan rating
from the Health and Safety at Works Act
1974. In addition the installation must be
carried out in accordance with the
current IEE 1992 (BS 7671), BS 6896:1991
(Industrial & Commercial) and any other
relevant British Standards and Codes of
Practice.
A gas meter is connected to the service
pipe by the local gas region or a qualified
local gas region contractor. An existing
meter should be checked preferably by
the Gas Region or a qualified local gas
region contractors to ensure that the
meter is adequate to deal with the rate of
gas supply required. Installation pipes
should be fitted in accordance with BS
6891:1998, such that the minimum
pressure at least (Please see the technical
data table below) will be achieved and
any other British Standards and Codes of
Practice.
Pipes of smaller size than the heater inlet
gas connection should not be used.
Natural Gas G20
kW
mm
OD
OD
kg
11.8 mbar
CB40
38
7 holes @dia 2.4
1
3.6
Connection R 1 /2 1 /2 BSP external thread
max. 25.0 mbar - min 17.0 mbar
230 Volts 1 phase 50 Hz
0.55 amps max. (inductive)
3 amps
Electronic programme start-up with spark ignition
40
2298L x 1865W x 256D
125mm
102mm
152
5.7
V220 ac 50Hz Class F
0.5A
The complete installation must be tested
for soundness as described in the
previous standard.
The gas supply must not be in the
position where it is subject to overheating.
The gas union service cock MUST be fitted
in the gas supply close to the heater, but
not onto the burner.
It is essential to provide some flexibility in
the final gas connection by use of a
tested and certified metallic hose to BS
6501 Part 1:1991 (minimum acceptable
quality Type 'B' Class 1). When stainless
steel flexible hoses are used the hose
should be connected in a 180˚ (bend
without any strain or torsion). (See figure
1 overleaf).
Note: Take care when making a gas
connection to the heater not to apply
excessive turning force to the internal
controls.
1