Vers. 2.1 - 22.04.08
2
2. Connections to Low Pressure Equipment
2.0 Installation of Equipment
The equipment must be installed in frost-free rooms only.
2.1 Water Connection
a) Before the equipment is connected to the water supply pipe, the
supply line must be rinsed through carefully to remove coarse
impurities and metal shavings.
b) The connection for water (hot and cold water) must be made at the top
of the equipment (1 on page 4).
c) It is important to ensure sufficient water - no less than 150 l/min.
per pumping unit. To meet this requirement, the diameter of the supply
pipe must be minimum 1 1/4" (32 mm) at a water pressure of 3.5 bar. At
a water pressure lower than 3.5 bar, the water pipe must be minimum 1
1/2" (38 mm).
d) The equipment is fitted with a filter on the supply pipe.
e) The pressure loss in the supply pipe should be held as low as possible
by:
- avoiding long supply pipes
- using low pressure resistance ball valves
- avoiding fittings with high pressure loss
f) When installing the piping, take care to avoid air traps.
g) Max. allowed temperature of supply water: 70°C
h) Max. allowed pressure of supply water: 4 bar
2.2 Supply of Compressed Air
a) Before compressed air is supplied to the equipment, the supply
pipe must be rinsed through carefully with air in order to remove
coarse impurities and metal shavings.
b) The equipment should be connected to a compressed air pipe or a
compressor guaranteeing:
