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YORK INTERNATIONAL

85

FORM 150.40-NM25

SINGLE CIRCUIT UNITS

ANNUNCIATION ALARM

An optional Annunciation Alarm Kit p/n 025-28396-101
can be supplied which contains a second relay output
board whose dry contacts will transition to function as a
warning if a fault (“F” Code on displays) occurs or power
is lost to the control panel. The system has a set of dry
contacts which are normally open (N.O.) and close when
control power is applied to the panel. Anytime control
power is lost or a fault occurs, the contact will open,

0°F LOW AMBIENT ACCESSORY

GENERAL

The standard chiller is designed to operate in an ambi-
ent temperature of 35°F (1.7°C) or higher. If it is neces-
sary to operate the chiller in an ambient between 0°F
(–17.8°C) and 35°F (1.7°C), the chiller should be pur-
chased with the factory installed Low Ambient Kit.

OPERATION

The fundamental purpose of the Low Ambient Kit is to
reduce the capacity of the condenser when the ambient
temperature is in the 0°F to 35°F range. This assures
that adequate discharge pressures can be maintained
at low temperatures eliminating low suction pressure
faults. This is accomplished in three ways as follows:

1. The normally open solenoid valve in the condenser

liquid line is energized to stop flow in one half of the

condenser, that is, one “V” bank in the condenser.
NOTE: The valve has an orifice which has been sized
to prevent liquid build-up in the inactive portion of the
condenser.

2. Louvered panels are installed to reduce flow of air

over the inactive side of the condenser to aid in pre-
venting liquid build-up.

3. Below 45°F (7.2°C) fans are cycled by discharge pres-

sure only.

COMPONENTS

When the Low Ambient Kit is installed, the following
physical changes are made to the standard chiller:

1. One normally open solenoid valve is added to the

condenser circuit liquid line.

FIG. 60 – ANNUNCIATION ALARM WIRING

breaking the alarm circuit. A 28VDC or 120VAC exter-
nal alarm circuit (by others) must be wired into the YORK
supplied alarm contact. If the alarm circuit is applied to
chillers used for critical duty (such as process duty, or
cooling other critical equipment) and the alarm circuit
should fail to function, YORK will not be liable for dam-
ages.

The kit contains a N.C. Contact wired into TB4 termi-
nals 300 and 301 (See Fig. 60).

00019TG(R)

ALARM IS WIRED TO TB5

300

&

301

FROM DRY CONTACTS (OPEN ON ALARM)
CONTACT RATING 28VDC, 120VAC
AT 1A. A SURGE PROTECTOR
(SUPPRESSOR) YORK P/N 031-00808
MUST BE WIRED IN PARALLEL WITH AN
INDUCTIVE ALARM DEVICE (I.E. RELAY
COIL) AND MUST BE PHYSICALLY
LOCATED AT THE COIL.

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Содержание YCAG18

Страница 1: ...Rev 2 Brine Unit GEII 5 BR Rev 1 Metric Unit GEII 5 M Rev 1 Must be used with 031 00805 Rev C Micrologic Board BEFORE MAY 1 1987 EFFECTIVE MAY 1 1987 EFFECTIVE JAN 1990 LCH130W YCWK11 YCWL12 YCWJ45PR0...

Страница 2: ...30 3 60 40 380 3 60 46 460 3 60 50 380 415 3 50 64 346 3 50 CONDENSER CODE 10 11 12 13 14 15 16 17 18 19 COOLER CODE Q R M N K L I J G H AIR COOLED YORK CHILLER NOMENCLATURE 2 3 5 8 9 36 44 50 51 60 6...

Страница 3: ...120 550 M12 N13 120 580 K14 L15 120 580 I16 J17 150 640 G18 H19 200 700 0 17 8 With Optional Low Ambient Kit LEAVING LIQUID MIN 40 4 4 TEMP F C MAX 50 10 AIR ON MIN 35 1 7 CONDENSER F C MAX 130 54 4...

Страница 4: ...n the top of the unit The area within the clearances shown above and area under the unit must be kept clear of all obstructions that would impede free air flow to the unit In installations where winte...

Страница 5: ...wall can be higher than the top of the unit The area within the clearances shown above and area under the unit must be kept clear of all obstructions that would impede free air flow to the unit In ins...

Страница 6: ...25 12 IF SYS 2 100 80 60 40 20 100 83 67 100 86 71 57 100 88 75 62 LEAD 50 33 17 43 29 14 50 38 25 12 OIL SYS 1 3 3 3 3 3 CHARGE GALS SYS 2 3 3 3 3 CONDENSER DWP 450 PSIG NO OF FANS 30 Dia Direct Driv...

Страница 7: ...d the normal reach of service personnel a suit able catwalk must be constructed around the unit The catwalk must be capable of supporting service person nel their equipment and the reciprocating compr...

Страница 8: ...31 2 32 2 27 MOUNTING ALUMINUM COIL UNITS Isolator Locations Chiller J K L M N P R S Model No Type Sizes YCAQ10 R1 2 32 2 32 2 27 2 31 YCAM12 N13 1 31 2 28 2 28 2 28 1 32 2 28 2 28 1 32 YCAK14 L15 2...

Страница 9: ...icing thermometers and pressure gauges are recommended for installation in the inlet and outlet water lines One connection point plug ged is provided in each cooler nozzle Thermometers and gauges are...

Страница 10: ...10 YORK INTERNATIONAL UNIT CONTROLS OPERATION YCAQ10 and YCAR11 SINGLE CIRCUIT UNITS FIG 4 WIRING DIAGRAM YCAQ10 and YCAR11 LD01711...

Страница 11: ...YORK INTERNATIONAL 11 FORM 150 40 NM25 SINGLE CIRCUIT UNITS LD01712 ELEMENTARY DIAGRAM FIG 4 CONTINUED...

Страница 12: ...12 YORK INTERNATIONAL SINGLE CIRCUIT UNITS FIG 4 CONTINUED LD01713 CONNECTION DIAGRAM ELECTRICAL BOX...

Страница 13: ...YORK INTERNATIONAL 13 FORM 150 40 NM25 SINGLE CIRCUIT UNITS FIG 4 CONTINUED CONNECTION DIAGRAM SYSTEM WIRING LD01714...

Страница 14: ...14 YORK INTERNATIONAL YORK RECIP MICROCOMPUTER CONTROL CENTER SINGLE CIRCUIT UNITS FIG 5 CONTROL CENTER SINGLE CIRCUIT UNITS STANDARD ENGLISH MODELS LD01777...

Страница 15: ...YORK INTERNATIONAL 15 FORM 150 40 NM25 SINGLE CIRCUIT UNITS FIG 6 CONTROL CENTER SINGLE CIRCUIT UNITS OPTIONAL ENGLISH MODELS WATER COOLING RANGE C SELECT LD01777 R...

Страница 16: ...ling and remote chilled water temp select These remote inputs are converted to logic levels for use by the Micro Logic Board COMBO BOARD This board receives analog information from transducer pressure...

Страница 17: ...YORK INTERNATIONAL 17 FORM 150 40 NM25 FIG 8 CONTROL PANEL EXTERIOR FIG 7 CONTROL POWER PANEL FIG 9 POWER PANEL FIG 10 CONTROL PANEL BACK SIDE FIG 11 CONTROL PANEL INTERIOR 00017TG...

Страница 18: ...data displayed is shown below left In the event of a failure the failure can be displayed by selecting 18 of the Select Data Display The mode of failure will then be indicated by a number from 0 11 T...

Страница 19: ...ice EMS BAS etc is telling the sys tem to turn off These are devices whose dry contacts may be connected in series across ter minals 3 and 4 of the terminal block in the lower left side of the Power S...

Страница 20: ...rating data on the system at the instant of shutdown Any display se lected by the operator will show stored data This data will remain in storage until the SYSTEM On Off Switch is placed in the OFF po...

Страница 21: ...FLA or 4 6VDC 115 FLA when Run Time 4 sec This protection assures that both contactors are energized all C T s are connected and operating and that the motor is not drawing excessive as well as too li...

Страница 22: ...int For Brine applications the setpoint can be varied from 0 F 17 8 C to 40 F 4 4 C on the Combo Board by adjusting R2 An F11 code will appear for this safety AUTOMATIC RESET SAFETIES Shutdown Safety...

Страница 23: ...ption in OPTIONS section for more information OPTIONAL REMOTE TEMPERATURE SETPONT RESET Remote Temperature Setpoint Reset capabilities can be added by adding an optional Digital Input Board and con fi...

Страница 24: ...unit on or off To operate the unit the switch must be in the ON position FIG 15 START STOP CONTROLS UNIT START UP SEQUENCE A simplified start up sequence is provided on the con trol panel to aid the...

Страница 25: ...11 F 6 12 F 7 14 F Leaving water temperatures below 15 F are not permitted regard less of whether leaving or return water temperature control is se lected The GEII 4 REV 2 may also be labeled GEII 4S...

Страница 26: ...her the Computed Setpoint falls into the temperature range of 9 9 C to 0 C or 0 to 9 9 C 1 If the Computed Setpoint falls into the tempera ture range from 9 9 to 0 C place SW1 on the Micro Logic Board...

Страница 27: ...hieved Mini mum RWT setpoints for various cooling ranges can be computed by adding the cooling range to 9 9 C I See page 29 for determining loading and unloading points LEAVING WATER TEMPERATURE LWT C...

Страница 28: ...ro Logic Board to the ON position see Page 32 D Set the two Setpoint Switches to the Desired LWT Setpoint selected in Step B i e 4 4 4 4 C from Step B if SW1 on the Micro Logic Board is ON Step B See...

Страница 29: ...ge 4 Cooling 52 5 11 4 Loader ON Stage 3 Loader OFF Stage 4 Range 50 0 10 00 Loader ON Stage 2 Loader OFF Stage 3 10 F 5 6 C 47 5 8 6 Compressor ON Unloaded Stage 1 Loader OFF Stage 2 45 7 2 Compresso...

Страница 30: ...Stage 3 Setpoint plus 0 9 F 49 C Setpoint Loader Stage 2 Setpoint Setpoint minus 0 9 F 49 C Compressor Stage 1 Setpoint minus 0 9 F 49 C Setpoint minus 1 8 F 99 C COOLING RANGE SWITCH 5 COOLING RANGE...

Страница 31: ...BOARD STANDARD ENGLISH UNITS 1 Spare 2 OFF Low Ambient Cut out 35 F ON Low Ambient Cut out adjustable 0 50 F R1 Combo Board 3 OFF RWT Control Standard as Shipped ON LWT Control 4 OFF No EMS Control N...

Страница 32: ...Computed RWT Setpoint page 26 or Desired LWT Setpoint page 28 falls into the range of 0 to 9 9 C 2 OFF Low Ambient Cut out 1 7 C ON Low Ambient Cut out adjustable 17 8 to 10 C R1 Combo Board 3 OFF RW...

Страница 33: ...C Low Suction Pressure Cut Out This cut out is factory set at 44 PSI 303 kPa This should never be changed unless brine or glycol is added to the system When brine or glycol is added lower the low pre...

Страница 34: ...com See Fig 7 See Fig 9 pressor crankcase solid liquid refrigerant in the liquid indicator and usually no more than 2 PSIG 13 8 kPaG variation in suction pressure for any given set of operat ing cond...

Страница 35: ...start at T 0 At this time the Micro Board will check all system conditions If no safeties are tripped and cooling demand is present the com pressor will start unloaded If a safety is tripped or no coo...

Страница 36: ...CONTROL The function of the compressor capacity control system is to automatically adjust the compressor pumping ca pacity to balance with the cooling load at a predeter mined return water temperatur...

Страница 37: ...indication of contamination basically due to moisture If it is necessary to charge oil refer to item 3 under the ANNUAL MAINTENANCE section 3 Check the refrigerant circuit for leaks ANNUAL MAINTENANCE...

Страница 38: ...ainer at all times to avoid entrance of air into the compressor I Before opening the suction or discharge stop valves connect a vacuum pump to the pump out port in the discharge stop valve Pump out po...

Страница 39: ...arge Pressure section may not Energize F4 Fault Code 2 External Motor Overload tripped 2 Check for defective External Motor Overload wiring motor problems 3 Improper System High Voltage 3 Check System...

Страница 40: ...erating 1 Check fans Fuses and Contactors Cuts out on High Dis or rotating backwards Air flow must be UP charge Pressure as 2 Too much Refrigerant 2 Remove Refrigerant sensed by Micro Proces 3 Air in...

Страница 41: ...won t load 1 Suction Pressure 105 PSIG 723 kPaG 1 Excessive load Check OPERATING solenoid valve de ener System 1 or 95 PSIG 654 5 kPaG LIMITATIONS on page 3 Allow gizes to load compres System 2 unit t...

Страница 42: ...YORK INTERNATIONAL UNIT CONTROLS OPERATION YCAM12 YCAN13 YCAK14 YCAL15 YCAI16 YCAJ17 YCAG18 YCAH19 DUAL CIRCUIT UNITS FIG 29 WIRING DIAGRAM YCAM12 N13 K14 L15 I16 J17 G18 H19 LD01715 ELEMENTARY DIAGR...

Страница 43: ...YORK INTERNATIONAL 43 FORM 150 40 NM25 DUAL CIRCUIT UNITS FIG 29 CONTINUED ELEMENTARY DIAGRAM LD01716...

Страница 44: ...44 YORK INTERNATIONAL DUAL CIRCUIT UNITS FIG 29 CONTINUED CONNECTION DIAGRAM ELECTRICAL BOX LD01717...

Страница 45: ...YORK INTERNATIONAL 45 FORM 150 40 NM25 DUAL CIRCUIT UNITS FIG 29 CONTINUED CONNECTION DIAGRAM SYSTEM WIRING LD01718...

Страница 46: ...46 YORK INTERNATIONAL DUAL CIRCUIT UNITS YORK RECIP MICROCOMPUTER CONTROL CENTER FIG 30 CONTROL CENTER DUAL CIRCUIT UNITS STANDARD ENGLISH MODELS...

Страница 47: ...YORK INTERNATIONAL 47 FORM 150 40 NM25 DUAL CIRCUIT UNITS FIG 31 CONTROL CENTER DUAL CIRCUIT UNITS OPTIONAL METRIC MODELS...

Страница 48: ...ional Digital Input Metric values require the EPROM and Control Panel to be changed This option can be ordered through Product Marketing Board and provides system control through the Relay Output Boar...

Страница 49: ...ORK INTERNATIONAL 49 FORM 150 40 NM25 DUAL CIRCUIT UNITS FIG 32 CONTROL POWER PANEL FIG 33 CONTROL PANEL EXTERIOR FIG 34 POWER PANEL FIG 35 CONTROL PANEL BACK SIDE FIG 36 CONTROL PANEL INTERIOR 00018T...

Страница 50: ...n be translated by comparing the number to the FAULT CODES listing on the control panel or page 52 Note This is FLA not RLA Compressor data plates list RLA current which is typical cur rent draw under...

Страница 51: ...timer It will be available for start or will restart when the 2 minute start up and 10 minute anti recycle timers time out and demand allows The c code will disappear as soon as the timers time out FI...

Страница 52: ...An F Code overrides any other letter code display which may appear See the MANUAL RESET FAULTS and AUTOMATIC RESET FAULTS Section for a more de tailed explanation of the fault codes Pages 53 54 When a...

Страница 53: ...for a letter code telling the operator the anti recycle timer is in effect After 3 faults an F code will be displayed and the system will lockout and not restart The fault can be cleared and the compr...

Страница 54: ...ly providing the anti recycle timer has timed out and a minimum 2 minute delay has passed An F9 code will be displayed while the temperature is high The F will automatically disappear when temp drops...

Страница 55: ...rride Whenever the lead sys tem faults the Micro automatically switches the lag system to the lead in an effort to keep chilled water temperature nearer to setpoint ANTI RECYCLE TIMER Any time a compr...

Страница 56: ...nd 21 seconds Closure for a period shorter than 1 second will be ignored by the Micro Logic Board Closure slightly longer than 21 seconds will be treated as 21 seconds The contact closure corresponds...

Страница 57: ...OLS Before attempting start up the temperature and start stop controls should be properly set and understood FIG 40 START STOP LEAD LAG CONTROLS lead or lag compressor if SW7 on the Micro Logic Board...

Страница 58: ...ed The GEII 5 REV 2 may also be labeled GEII 5S REV 2 The two EPROMs are identical RWT Control From the WATER COOLING RANGE CODES SELECT determine the appropriate control range per design and select i...

Страница 59: ...9 C can be programmed into the panel if the Micro Logic Board is equipped with a GEII 5M REV 2 EPROM Fig 51 Follow the steps be low to set up the panel switches prior to operating the chiller A Befor...

Страница 60: ...s Leaving Water Temperature LWT Control Follow the steps below to set up the panel switches prior to operating the chiller NOTE YORK does not recommend utilizing LWT Con trol unless 6 8 stages of opti...

Страница 61: ...Board to the ON position See Fig 51 D Set the two Setpoint switches to the Desired LWT Setpoint selected in Step B i e 4 4 4 4 C from Step B SW1 on the Micro Logic Board is ON Step B See Fig 47 DUAL C...

Страница 62: ...ling Range 10 F 12 2 C System Switches Both ON SYS 1 LEAD Sw 5 on Micro OFF Typical 4 stages of unloading Sw 3 on Micro OFF RWT Control Return Water Temp F C 55 12 8 Lag Compressor Loads Stage 2 Cooli...

Страница 63: ...3 Setpoint plus 1 1 F 61 C Setpoint plus 0 8 F 44 C Lag Compr Loader Stage 2 Setpoint plus 0 9 F 49 C Setpoint plus 0 5 F 27 C Lag Compressor Stage 1 Setpoint plus 0 6 F 33 C Setpoint plus 0 2 F 11 C...

Страница 64: ...ge 2 Setpoint plus 1 1 F 61 C Setpoint plus 0 4 F 22 C Lag Compressor Stage 1 Setpoint plus 0 6 F 33 C Setpoint minus 0 1 F 05 C Lead Compr Loader Stage 4 Setpoint plus 0 2 F 11 C Setpoint minus 0 7 F...

Страница 65: ...nt plus 1 6 F 88 C Setpoint plus 0 8 F 44 C Lag Compressor Stage 1 Setpoint plus 0 8 F 44 C Setpoint Lead Compr Loader Stage 2 Setpoint Setpoint minus 0 8 F 44 C Lead Compressor Stage 1 Setpoint minus...

Страница 66: ...l No Digital Input Board Standard As Shipped ON EMS Control Optional Digital Input Board Installed 5 OFF 4 Stage Control Standard as Shipped ON 8 Stage Control Optional as ordered for 5 6 7 or 8 stage...

Страница 67: ...oard 3 OFF RWT Control Standard as Shipped ON LWT Control 4 OFF No EMS Control No Digital Input Board Standard As Shipped ON EMS Control Optional Digital Input Board In stalled 5 OFF 4 Stage Control S...

Страница 68: ...ith YORK C oil prior to start up Priming should be done through the Schrader fitting at the compressor oil pump Stroke oil pump 10 times to prime the lubrication circuit E The compressor oil level mus...

Страница 69: ...pressure for any given set of operating conditions Allow the compressor to run for a short time being DUAL CIRCUIT UNITS ready to stop it immediately if any unusual noise or other adverse condition s...

Страница 70: ...start a 2 minute start up timer 4 At the end of the 2 minute timer the 10 minute anti DUAL CIRCUIT UNITS recycle timer will start at T 0 At this time the Micro Board will check all system conditions...

Страница 71: ...e of the following conditions result in low motor cur rent or low suction pressure faults 1 Discharge pressures run below 140 PSI 2 Glycol is being utilized and leaving chilled liquid tem peratures be...

Страница 72: ...ance with the cooling load at a pre deter mined return water temperature and to permit the com pressor to start under partial load The compressor ca pacity control system is actuated by means of high...

Страница 73: ...o charge oil refer to item 3 under the ANNUAL MAINTENANCE section 3 Check the refrigerant circuit for leaks DUAL CIRCUIT UNITS ANNUAL MAINTENANCE It is recommended that the following items be checked...

Страница 74: ...Stop the vacuum pump close the shut off valve and open the discharge valve fully before disconnecting the line from the vacuum pump Disconnect the vacuum pump and replace the plug in the pump out por...

Страница 75: ...ay not Energize F4 or F8 Fault Code 2 External Motor Overload tripped 2 Check for defective External Motor Overload wiring motor problems 3 Improper System High Voltage 3 Check System High Voltage Sup...

Страница 76: ...ting backwards Air flow must be UP charge Pressure as 2 Too much Refrigerant 2 Remove Refrigerant sensed by Micro Proces 3 Air in Refrigerant System 3 Evacuate and recharge sor via high discharge 4 De...

Страница 77: ...back of Liquid 2 Adjust Thermal Expansion Valve TXV Refrigerant or Replace Power Element Check TXV Bulb Location Should be located on suction line at least 8 10 from nearest elbow Bulb should be at 4...

Страница 78: ...stem 1 or 320 PSIG 2205 kPaG System 2 3 Demand not great enough 3 OK 4 Defective Loading Solenoid 4 Replace Compressor Loading Solenoid 5 Faulty Wiring to Loading Solenoid 5 Check Wiring 6 Defective W...

Страница 79: ...ilable depending upon whether the unit is equipped for standard or brine duty Leaving water temperatures of below 15 F 9 4 C are not per mitted regardless of whether leaving or return water temperatur...

Страница 80: ...mended In other words to maintain the 40 F 4 4 C RWT setpoint the contacts between terminals 75 and 76 must be closed for a period of 8 5 seconds every 20 minutes If this is not refreshed at least eve...

Страница 81: ...0 NM25 SINGLE CIRCUIT UNITS FIG 55 CONNECTION DIAGRAM FIG 56 FIELD WIRING AND ELEMENTARY SCHEMATIC LD01712 D LD01630 THIS RESISTOR MUST BE REMOVED FIELD WIRING CUSTOMER SUPPLIED DRY CONTACTS FROM BAS...

Страница 82: ...d to This will assure that proper operation will result 1 The printer option is adaptable to all REV levels of Micro Logic Boards and EPROMS software No modifications are necessary to the panel 2 Maxi...

Страница 83: ...oard See the illustration below FIG 57 ASSEMBLY AND WIRING Resistors should be wired into the 031 00929 102 cable Insulate connection points on the resistors as needed Assembly Wiring All components s...

Страница 84: ...y in the use of the printer This includes damages to the printer and the Micro Logic Board or chiller operation problems that may result SINGLE CIRCUIT UNITS FIG 59 REMOTE PRINT OUT HOOK UP FIG 58 PRI...

Страница 85: ...lenoid valve in the condenser liquid line is energized to stop flow in one half of the condenser that is one V bank in the condenser NOTE The valve has an orifice which has been sized to prevent liqui...

Страница 86: ...nce The chart also indi cates when the low ambient liquid line solenoid valve LSA functions FIG 61 FAN CYCLING AMBIENT TEMP SYSTEM 1 FANS LOW AMBIENT SOLENOID Above 65 F 18 3 C Fan C D ON 4 sec after...

Страница 87: ...UNITS reset ranges are available depending upon whether the unit is equipped for standard or brine duty Standard Water Duty Setpoint 40 70 G E II 5 REV 2 English EPROM Installed On Micro Logic Board...

Страница 88: ...as a signal to change the RWT setpoint back to the original setpoint of 25 F 3 9 C on the Control Panel See Fig 62 63 and 64 for loca tion and wiring to TB8 DUAL CIRCUIT UNITS FIG 62 COMPONENT LOCATI...

Страница 89: ...M25 DUAL CIRCUIT UNITS LD01636 FIG 63 CONNECTION DIAGRAM FIG 64 FIELD WIRING AND ELEMENTARY SCHEMATIC FIELD WIRING CUSTOMER SUPPLIED DRY CONTACTS FROM BAS EMS FAX 4000 SWITCH OR RELAY THIS RESISTOR MU...

Страница 90: ...e that proper operation will result 1 The printer option is adaptable to all REV levels of Micro Logic Boards and EPROMS software No modifications are necessary to the panel 2 Maximum cable length bet...

Страница 91: ...paper 3 25 ft Twisted Pair Shielded Cable minimum 3 con ductor 18 AWG Stranded 300V min insulation 4 2 1 KW 1 4 W resistors 5 1 031 00929 102 adapter cable Note This 4 cable may already be installed i...

Страница 92: ...ers This makes the equip ment susceptable to operation problems or miswiring which may cause damage to the printer and Micro Logic Board YORK assumes no responsibility for assistance or damge in the u...

Страница 93: ...one or both sys tems the respective contacts will open breaking the alarm circuit A 28VDC or 120VAC external alarm cir FIG 68 ALARM KIT RELAY OUTPUT BD 2 LOCATION cuit by others must be wired into the...

Страница 94: ...reduce the capacity of the condenser when the ambient temperature is in the 0 F to 35 F range This assures that adequate discharge pressures can be maintained at low temperatures eliminating low suct...

Страница 95: ...cates when the low ambient liquid line solenoid valve LSA functions Fan G not present on all chillers See Fig 70 CONDENSER FAN LOCATIONS AMBIENT TEMP SYSTEM 1 FANS SYSTEM 2 FANS LOW AMBIENT SOLENOID A...

Страница 96: ...1 231 8 44 4 112 233 6 45 0 113 235 4 45 6 114 237 2 46 1 115 239 0 46 7 116 240 8 47 2 117 242 6 47 8 118 244 4 48 3 119 246 2 48 9 120 248 0 49 4 121 249 8 50 0 122 251 6 50 6 123 253 4 51 1 124 255...

Страница 97: ...Ambient Temperature Cut out Please make a note in the manual that this adjustment cannot be made unless SW2 on the Micrologic Board is in the ON position on REV C Micrologic Boards This procedure ment...

Страница 98: ...You should be aware that these black plastic panels are coated inside with a conductive com pound This is intended to be a barrier against RFI EMI emissions Because of this conductive coating you shou...

Страница 99: ...YORK INTERNATIONAL 99 FORM 150 40 NM25...

Страница 100: ...lympic Team 36USC380 P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by York International Corporation 1997 ALL RIGHTS RESERVED Form 150 40 NM25...

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