andrews CSC 39 Installation Manual, Operation And Service Manual page 13

SECTION 3
GAS SUPPLY
PROPANE OR
BUTANE
8
INSTALLATION
Contact Calor Gas who will provide the appropriate type and size of LPG supply vessel
and ensure it's safe location and installation.
The installation of the gas supply must conform to LPGA Code of Practice, 22 LPG Piping
Systems: Design and installation plus the requirements of British Standards and Codes of
Practice listed in Section of this manual.
Andrews water heaters are unregulated and a second stage regulator must be installed to
give an inlet pressure to the appliance as follows: ( See fig. 2).
PROPANE: 37mbar (14.86 in wg)
BUTANE: 28mbar (11.26 in wg)
When using propane or butane cylinders, connect a minimum number of cylinders as
listed below, together with a manifold before connecting to the union.
Use a minimum pipe size of
Two Cylinders CSC 39 and CSC 59
Three Cylinders CSC 78
Four Cylinders CSC 93
WARNING!
PROPANE AND BUTANE CYLINDERS MUST BE USED AND STORED IN
ACCORDANCE WITH 'THE HIGHLY FLAMMABLE LIQUIDS AND LIQUIFIED
PETROLEUM GASES REGULATIONS 1972', AND SHOULD COMPLY WITH LPGA
CODE OF PRACTICE 7, 'STORAGE OF FULL AND EMPTY LPG CYLINDERS AND
CARTRIDGES.
3
⁄ in bore.
4