Cornelius IMD300-15A, Руководство по установке

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Countertop Icemaker IMD Series Installation Manual
Publication Number: 638085277INS - 12 - © 2004-2012, IMI Cornelius Inc.
C
ONDENSER
M
ODULATING
V
ALVE
The reason for using a water modulating valve is to supply the correct amount of water to the condenser to main-
tain the proper operating pressure in the refrigeration system high side. The flow of water through the valve is
increased as the high side pressure rises and decreases as high side pressure lowers.
To calibrate the amount of water flow with the refrigeration system high side pressure, turn adjustment screw
located on end of valve opposite of bellows (see Figure 6). Turn screw counterclockwise to raise opening point.
Opening point of valve should be set to maintain proper operating pressure in refrigeration system high side. Refer
to Pressure Chart on Page 11. Closing point of valve should be set low enough to close valve during compressor
stand by periods.
NOTE: Cold water will absorb more heat faster than warm water. The water flow will therefore auto-
matically increase as inlet temperature increase.
Figure 6. Adjustment Screw
C
ONDENSER
M
ODULATING
V
ALVE
R
EMOVAL
!
WARNING:
Disconnect power to the unit before servicing. Follow all lock out/tag out procedures established by the user. Verify all
power is off to the unit before performing any work.
Failure to comply could result in serious injury, death or damage to the equipment.
1. Shut off water supply to condenser and reclaim refrigerant from system.
2. Remove inlet water line from Condenser modulating Valve. Also remove tube from refrigerant high side line.
3. Remove Condenser Modulating Valve and bracket.
4. Remove valve from bracket.
5. Replace Condenser Modulating Valve by reversing Steps 2 thru 4.
6. Recharge unit with refrigerant per nameplate.
7. Turn power and water ON to unit.
8. With unit running adjust modulating valve to proper setting.
9. Go through a complete system check.