York YCIV 0157-0397 60Hz Скачать руководство пользователя страница 5

FORM 201.23-CL1 (309)

JOHNSON CONTROLS 

5

JOB NAME: _____________________________

SALES ORDER #: ________________________

LOCATION: _____________________________

SOLD BY: ______________________________

INSTALLING

CONTRACTOR: _________________________

START-UP

TECHNICIAN/

COMPANY: _____________________________

START-UP DATE: ________________________

CHILLER MODEL #: ______________________

SERIAL #: ______________________________

COMPRESSOR #1

MODEL#: ______________________________

SERIAL #: ______________________________

COMPRESSOR #2

MODEL#: ______________________________

SERIAL #: ______________________________

COMPRESSOR #3

MODEL#: ______________________________

SERIAL #: ______________________________

COMPRESSOR #4

MODEL#: ______________________________

SERIAL #: ______________________________

UnIt CHECkS (nO POWER)

The following basic checks should be made with the 

customer power to the unit switched off.

Proper electrical lock out and tag pro-

cedures must be followed.

Check the system 24 hours prior to initial start:

1.  Inspect  the  unit  for  shipping  or  installation  

damage.

2.  Ensure that all piping has been completed.
3.  Assure the unit is properly charged and there are 

no piping leaks.

4.  Open each system suction service valve, discharge 

service valve, economizer service valve, liquid line 

stop valve, and oil line ball valve.

5.  The oil separator oil level(s) should be maintained 

so that an oil level is visible in either of the oil sepa-

rator sight glasses when a compressor is running 

at high speeds for 10 to 15 minutes.  An oil level 

may not be visible in the sight glasses when the 

compressor is off and it may be necessary to run the  

compressor to obtain a level.  In shutdown situa-

tions and at some load points, much of the oil may 

be in the condenser and the level in the separators 

may fall below the bottom sight glass.

    On systems with dual oil separators per compressor, 

one separator may show a lower level or no level, 

while the other separator shows a level between the 

2 sight glasses.  This is normal and a level is only 

required in one separator.  Do NOT add oil to raise 

the level in the other oil separator.

    Oil levels in single separator systems should not 

go above the top of the upper sight glass.  Dual 

separator systems should also not show oil levels 

above the top of one of the sight glasses. In the rare 

situation where oil levels are high, drain enough 

oil to lower the level to the bottom of the top sight 

glass. 

EqUIPmEnt StaRt-UP CHECk SHEEt

Содержание YCIV 0157-0397 60Hz

Страница 1: ...denser coils with the full operating charge as given in the Technical Data Section Service and Oil Line Valves Open each compressor suction economizer and discharge service valve If valves are of the back seat type open them fully counterclockwise then close one turn of the stem to ensure operating pressure is fed to pressure transducers Open the liquid line service valve and oil return line ball ...

Страница 2: ...fore placing the unit back in service valves should be opened and power must be switched on if power is removed for more than 8 hours for at least 8 hours 24 hours if ambient temperature is below 86 F 30 C before the unit is restarted Flow Switch Verify a chilled water flow switch is correctly fitted in the customer s piping on the cooler outlet and wired into the control panel correctly using shi...

Страница 3: ...rigerant will be seen in the liquid line sight glass After several minutes of operation and provided a full charge of refrigerant is in the system the bubbles will disappear and be replaced by a solid column of liquid Loading Once the unit has been started all operations are fully automatic After an initial period at minimum capacity the control system will adjust the unit load depending on the ch...

Страница 4: ... the sight glass If subcooling is out of range add or remove refrigerant as required to clear the sight glass Do not overcharge the unit Subcooling should be checked with a flash tank level of approximately 35 with a clear sight glass General Operation After completion of the above checks for System 1 switch OFF the SYS 1 switch on the keypad and repeat the process for each subsequent system When ...

Страница 5: ...properly charged and there are no piping leaks 4 Open each system suction service valve discharge service valve economizer service valve liquid line stop valve and oil line ball valve 5 The oil separator oil level s should be maintained so that an oil level is visible in either of the oil sepa rator sight glasses when a compressor is running at high speeds for 10 to 15 minutes An oil level may not...

Страница 6: ...ss the cooler Excessive flow may cause catastrophic damage to the evaporator 7 Check the control panel to ensure it is free of foreign material wires metal chips tools documents etc 8 Visually inspect wiring power and control Wiring MUST meet N E C and local codes 9 Check tightness of the incoming power wiring inside the power panel and inside the motor ter minal boxes 10 Check for proper size fus...

Страница 7: ...d using the arrow keys scroll to the compressor overload settings Verify the Fac tory Set overload potentiometer s on the VSD logic board are set correctly In the unlikely event that they are not set correctly adjust the potenti ometers until the desired values are achieved The VSD is powered up and live High voltage exists in the area of the cir cuit board on the bus bars VSD Pole Assemblies and ...

Страница 8: ... CONTACT YORK REPRESENTATIVE Programmed Values 10 Program the required operating values into the micro for cutouts safeties etc and record them in the chart below Suction Press Cutout ________________________ PSIG kPa Low Ambient Cutout ________________________ F C Leaving Chilled Liquid Temp Cutout ________________________ F C Motor Current Limit ________________________ FLA Pulldown Current Limi...

Страница 9: ...e Daily Schedule start and stop times 14 Place the panel in Service mode and turn on each fan stage one by one Assure the fans rotate in the correct direction so air flow exits the top of the chiller 15 Remove the cap on the fill tube and run the glycol pump to verify the level in the fill tube Assure the glycol level in the VSD cooling system is 9 15 inches 23 28 cm from the top of the fill tube ...

Страница 10: ...e entering the compressor and the temperature corresponding to the suction pressure as shown in a standard pressure temperature chart SUPERHEAT Example Suction Temp 46 F 8 C minus Suction Press 30 PSIG converted to Temp 35 F 1 C 11 F 6 C The suction temperature should be taken 6 13 mm before the compressor suction service valve and the suction pressure is taken at the compressor suction service va...

Страница 11: ...FORM 201 23 CL1 309 JOHNSON CONTROLS 11 notes ...

Страница 12: ... 861 1001 www york com P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by Johnson Controls 2009 ALL RIGHTS RESERVED Form 201 23 CL1 309 Supersedes Nothing ...

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