Vogt TUBE-ICE P-118F, Service Manual

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P118F Service Manual
INSTALLING YOUR TUBE-ICE
®
MACHINE
1/6/09
3-1
3. Installing Your Tube-Ice
®
Machine
Piping and Drain Connections. See FIGURES 3-1 and 3-2 for connection locations.
! CAUTION !
External shut-off valves must be provided in the water inlet lines.
The minimum inlet water pressure for satisfactory operation
of the machine is 30 psig.
The maximum allowable pressure is 100 psig.
! CAUTION !
Make-up Water
In
Water Tank
Drain*
Condenser Water
In
Condenser
Water Out
3/4” FPT 1” FPT 1 1/4” FPT 1 1/4” FPT
TABLE 3-1
Water Supply and Drains
*The condenser water outlet and water tank drain connections must be extended to an open drain or
sump, arranged for visible discharge.
Do not trap the water tank drain line , as this will interfere
with the operation of the automatic blowdown system. A 20 mesh strainer, supplied with the
machine, should be installed in the supply line to the condenser.
! CAUTION !
These lines must NOT be connected into a pressure tight common header
due to the possibility that warm condenser water may back up into
the water tank. The condenser water outlet MUST be piped
separately to the drain.
! CAUTION !
Cooling Tower (for water cooled machines only). When selecting a cooling tower, careful
attention must be given to operating wet bulb conditions. It is advisable to check with your local
cooling tower distributor for their recommendations based on actual operating conditions in your
area. An average wet-bulb of 78
°
F is typical in the U.S. but many localities have design wet-bulbs
as low as 72
°
F or as high as 82
°
F.
The cooling tower water pump must be capable of delivering the required volume of water through
the condenser. Due to cooling tower location and pressure drop through water lines and water
regulating valves, the pump must be sized for each installation. Refer to TABLE 11-4 for condenser
water requirements. The water piping for the cooling tower and the installation of the pump must be
in accordance with the manufacturer’s instructions.
Proper water treatment for the prevention of mineral and foreign matter accumulation in the
condenser or cooling tower is recommended. A water analysis should be obtained to determine the
proper chemicals to use.