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7.11 -  Circuit lead/lag selection (multi-circuit units)

This function determines the lead and lag circuit on dual-
circuit units. It controls the start/stop sequence of the 
refrigeration circuits called circuit A or circuit B. 

The.circuit.authorised.to.start.first.is.the.lead.circuit..Lead.
circuit.is.used.first.for.capacity.increases.and.at.the.same.time.
should be decreased last when decreasing capacity. The lead/
lag circuits can be selected manually or automatically 
according.to.the.unit.configuration.(GEN_CONF).

• 

Automatic lead/lag circuit determination:

 The control 

system determines the lead circuit to equalise the 
operating.time.of.each.circuit.(value.weighted.by.the.
number of start-ups of each circuit). As a result, the 
circuit with the lowest number of operating hours 
always.starts.first.

• 

Manual lead/lag circuit determination:

 Circuit A or B 

selected as the lead circuit. The selected circuit is always 
the.leader..It.is.the.first.to.start.and.the.last.to.stop..

7.12 -  Circuit capacity loading sequence

This function determines in which order the circuit capacity 
is changed. Compressor loading is managed by starting/
stopping the compressors and controlling the position of the 
slide.valve..Three.types.of.sequencing.are.available.and.can.
be.configured.by.the.user.via.the.Touch.Pilot.user.interface.
(GEN_CONF).

• 

Balanced loading sequence:

 The control maintains 

equal capacity between all circuits as the machine loads 
and unloads. See also section 7.12.1.

• 

Staged loading sequence:

 The control loads the lead 

circuit completely before the lag circuit is started. When 
the.load.is.decreasing,.the.lag.circuit.is.unloaded.first..
See also section 7.12.2.

• 

Smart circuit loading:

 The control loads the lead circuit 

completely before decreasing in order to make the 
global unit load increasing smoother. For unloading 
sequence the lead circuit is increased when the lag 
circuit is stopped. See also section 7.12.3.

7.12.1 -  Dual circuit – balanced capacity loading

Loading sequence

Unloading sequence

Lead circuit (%) Lag circuit (%) Lead circuit (%) Lag circuit (%)

0

0

100

100

50

0

100

95

55

0

95

95

60

0

95

90

65

0

90

90

70

0

90

85

70

50

85

85

70

55

85

80

70

65

80

80

70

70

80

75

75

70

75

75

75

75

75

70

80

75

70

70

80

80

70

65

85

80

65

65

85

85

65

60

90

85

60

60

90

90

60

55

95

90

60

50

95

95

60

0

100

95

55

0

100

100

50

0

100

100

0

0

7.12.2 -  Dual circuit – staged capacity loading

Loading sequence

Unloading sequence

Lead circuit (%) Lag circuit (%) Lead circuit (%) Lag circuit (%)

0

0

100

100

50

0

100

95

55

0

100

90

60

0

100

85

65

0

100

80

70

0

100

75

75

0

100

70

80

0

100

65

85

0

100

60

90

0

100

55

95

0

100

50

100

0

95

50

100

50

90

50

100

55

85

50

100

60

80

50

100

65

75

50

100

70

70

50

100

75

70

0

100

80

65

0

100

85

60

0

100

90

55

0

100

95

50

0

100

100

0

0

7.12.3 -  Dual circuit – smart capacity loading

Loading sequence

Unloading sequence

Lead circuit (%) Lag circuit (%) Lead circuit (%) Lag circuit (%)

0

0

100

100

50

0

100

95

55

0

95

95

60

0

95

90

65

0

90

90

70

0

90

85

75

0

85

85

80

0

85

80

85

0

80

80

90

0

80

75

95

0

75

75

100

0

75

70

70

50

70

70

70

55

70

65

70

60

65

65

70

65

65

60

70

70

60

60

75

70

60

55

75

75

60

50

80

75

80

0

80

80

75

0

85

80

70

0

85

85

65

0

90

85

60

0

90

90

55

0

95

90

50

0

95

95

0

0

100

95

-

-

100

100

-

-

7.13 -  High condensing temperature 

61XWHZE units are high condensing units for which the 
maximum.condenser.leaving.water.temperature.can.be.set.
to 85°C. 

7.14 -  Head pressure control

For water-cooled 61XWHZE units, condensing pressure 
control.is.assured.if.the.three-way.valve.option.is.selected..
The saturated condensing temperature is controlled based 
on.a.user-configurable.fixed.setpoint.(SETPOINT.menu)..
The. three-way. valve. control. can. be. configured. only. by.
Carrier.service.technicians.

Summary of Contents for Touch Pilot

Page 1: ...CONTROLS MANUAL Original document Touch Pilot Control 61XWHZE ...

Page 2: ... 10 4 6 Unit start stop 10 4 7 Display settings 11 4 8 Main menu 12 4 9 Configuration menu 12 4 10 System configuration override 12 5 WEB CONNECTION 13 5 1 Web interface 13 5 2 Opening the web interface 13 5 3 Web browser settings 13 5 4 Technical documentation 13 6 TOUCH PILOT CONTROL DETAILED MENU STRUCTURE 14 6 1 Main menu 14 6 2 Configuration menu 19 6 3 Alarm menu 22 7 TOUCH PILOT CONTROL OPE...

Page 3: ...ign at any time without notice 7 14 Head pressure control 27 7 15 Master Slave assembly 28 7 16 Energy Management Module EMM 28 7 17 Schedule setting 28 7 18 Trending 29 8 DIAGNOSTICS 30 8 1 Control diagnostics 30 8 2 E mail notifications 30 8 3 Displaying current alarms 30 8 4 Resetting alarms 30 8 5 Alarm history 30 8 6 Alarms description 30 9 MAINTENANCE 35 ...

Page 4: ...creenshotsoftheuserinterfaceprovided in this manual include text in English After changing the language of the system all labels will be in the language selected by the user Please read all instructions prior to proceeding with any work Pay attention to all safety warnings The information provided herein is solely for the purpose of allowing customers to operate and service Carrier manufactured eq...

Page 5: ...ed off specific circuits may still be energised as they may be connected to a separate power source RISKOFBURNS Electricalcurrentsmaycausecomponents togethot Handlepowercable electricalcablesandconduits terminal box covers and motor frames with great care IMPORTANT Some specific safety precautions should be taken in case of HFO units For more information about handling the equipment safely please ...

Page 6: ... a software failure The green LED flashes continuously on all boards to show that the board is communicating correctly over its internal bus If the green LED is not flashing this indicates a LEN bus wiring problem 3 5 Pressure transducers Two types of electronic sensors high and low pressure are used to measure various pressures in each circuit These electronic sensors deliver 0 to 5 VDC The senso...

Page 7: ... contact SIOB cir A DI 03 63 64 Used to control demand limit Remote heat cool contact SIOB cir A DI 04 73 74 Used to select heat cool mode Alarm relay SIOB cir A DO 05 30A 31A Indicates alarms Running relay SIOB cir A DO 06 37 38 Indicates if the unit is ready to start or operating Occupancy override SIOB EMM DI 01 77 78 Enables to switch between occupied closed contact and unoccupied mode open co...

Page 8: ...hecontrolisalwaysactiveandtheoperatingmoderemains unchanged Press anywhere on the screen and the Welcome screen will be displayed 4 2 Buttons HOME SCREEN Home button Main Menu button Back button Home screen displayed Main Menu displayed Go back to the previous screen Login button Start Stop button Alarm button Basic access Unit is stopped No alarm active on the unit User access Unit is running gre...

Page 9: ... password User password required Legend General Parameters Run Times Inputs Status Configuration Menu Temperatures Modes Outputs Status Trendings Pressures Setpoint Table Pump Status Main menu General Configuration Broadcast Menu Reset Configuration Pump Configuration Date Time configuration Schedule Menu User Configuration Control Identification Holiday Menu Configuration menu ...

Page 10: ...unit shutdown by pressing the Back button Information message box The information displayed in the status bar at the bottom of the screen includes relevant messages regarding the current user action All screens presented further in this manual may display the following messages MESSAGE STATUS COMMUNICATION FAILURE Equipment controller did not respond while reading the table content ACCESS DENIED E...

Page 11: ...th the password 4 7 2 Password change User password can be modified in the User Configuration menu To change your password 1 Go to the Main Menu 2 Navigate to the Configuration menu logged in users only and select User Configuration USERCONF 3 Select the User Password box and provide your new password 4 Press OK The User Configuration screen appears 5 Press the Save button to save your changes or ...

Page 12: ... user modifiable parameters such as pump configuration schedule menu etc To access the Configuration menu press the Main menu button located in the upper left part of the Synoptic screen and then find and press Configuration Menu Press the field corresponding to the parameter to be modified and introduce all the necessary changes Press the Up Down buttons to navigate between the screens Once all t...

Page 13: ...not use a proxy server Java platform version 6 or higher In the control panel clear the Keep temporary files on my computer check box and use a direct connection IMPORTANT Two users can be connected simultaneously with no priority between them The last modification is always taken into account Web connection features Technical documentation Two users controlling the unit simultaneously 5 4 Technic...

Page 14: ...rameters Menu GENUNIT No Name Status Unit Displayed text Description 1 CTRL_TYP 0 to 2 Local 0 Net 1 Remote 2 Operating mode 0 Local 1 Network 2 Remote 2 STATUS Run Status Off Running Stopping Delay Trip out Ready Override etc 3 CHIL_S_S dsable enable Net Cmd Start Stop Unit start stop via Network When the unit is in Network mode start stop command can be forced 4 CHIL_OCC no yes Net Cmd Occupied ...

Page 15: ...ted suction temperature circuit A 7 SUCT_A C Compressor Suction Tmp A Compressor suction temperature circuit A 8 DGT_A C Discharge Gas Temp cir A Discharge gas temperature circuit A 9 CP_TMP_A C Motor Temperature cir A Motor temperature circuit A 10 SCT_B C Saturated Cond Tmp cir B Saturated condensing temperature circuit B 11 SST_B C Saturated Suction Temp B Saturated suction temperature circuit ...

Page 16: ...SW open close Remote Setpoint Switch Remote setpoint selection switch 4 LIM_SW1 open close Limit Switch 1 Demand limit switch 1 5 LIM_SW2 open close Limit Switch 2 Demand limit switch 2 EMM option 6 OIL_L_A open close Oil Level Input A Oil level input circuit A 7 OIL_L_B open close Oil Level Input B Oil level input circuit B 8 OIL_L_C open close Oil Level Input C Not applicable to this unit 9 CURR...

Page 17: ...Cond 3 Way Valve Pos Condenser 3 way valve position 22 READY off on Ready or Running Status Unit ready running status 23 ELBXFAN off on Electrical Box Fan Electrical box fan status Depends on the selected language English by default Pump Status Menu PUMPSTAT No Name Status Unit Displayed text Description 1 SET_FLOW no yes Cooler Flow Setpoint Out Evaporator flow setpoint output 2 CPUMP_1 off on Co...

Page 18: ...essor mapping circuit A 19 m_map_b no yes Map compressor Circuit B Compressor mapping circuit B 20 m_map_c no yes Map compressor Circuit C Not applicable to this unit 21 m_hp_a no yes High Pres Override Cir A High pressure override circuit A 22 m_hp_b no yes High Pres Override Cir B High pressure override circuit B 23 m_hp_c no yes High Pres Override Cir C Not applicable to this unit Depends on th...

Page 19: ...typ 0 to 2 0 Loading Sequence Loading sequence see also section 7 12 5 0 Equal 1 Staged 0 Equal loading sequence 1 Staged loading sequence 6 2 Smart 2 Smart loading sequence 7 ramp_sel no yes no Ramp Loading Select Ramp loading selection 8 off_on_d 1 to 15 1 min Unit Off to On Delay Unit Off to On delay 9 nh_start 00 00 00 00 hour Night Mode Start Hour Night mode start time 10 nh_end 00 00 00 00 h...

Page 20: ...mp Off Water flow is checked when the pump is off 12 stopheat no yes no Cooler Pump Off In Heat Evaporator pump OFF in heating 13 stopcool no yes no Cond Pump Off In Cool Condenser pump OFF in cooling Depends on the selected language English by default User Configuration Menu USERCONF No Name Status Default Unit Displayed text Description 1 use_pass 0 to 9999 11 User Password User password The use...

Page 21: ...h by default Holiday Menu HOLIDAY No Name Status Default Displayed text Description 1 HOL_MON 0 12 0 Holiday Start Month Holiday start month 2 HOL_DAY 0 31 0 Start Day Holiday start day 3 HOL_LEN 0 99 0 Duration days Holiday duration days Depends on the selected language English by default Broadcast Menu BROCASTS No Name Status Default Displayed text Description 1 ccnbroad 0 1 2 2 Activate Not app...

Page 22: ...ds on the selected language English by default Control Identification Menu CTRL_ID No Status Default Displayed text Description 1 0 239 0 CCN Element Number Element number 2 0 239 1 CCN Bus Number Bus number 3 9600 19200 38400 9600 CCN Baud Rate Communication speed 4 5 61XWHZE Touchpilot Device Description Unit description 6 Location Description Location description The number corresponds to the c...

Page 23: ...ency stop command EMMSTOP If activated the unit shuts down regardless of the active operating type General alarm The unit shuts down due to failure 7 2 Unit stop function This function controls the unit compressor capacity reduction If there is an alarm or a demand to stop it forces the compressors to the minimum capacity before stopping them Active operating type Parameters status Control type Un...

Page 24: ...eating setpoint is normally used during occupied periods and the second cooling heating setpoint is used during unoccupied periods whereas the third cooling setpoint is used for ice storage ice configuration and EMM SIOB required Setpoint 1 Setpoint 2 Setpoint 3 Cooling Occupied Unoccupied Ice storage cooling setpoint Heating Occupied Unoccupied Depending on the current operation type local remote...

Page 25: ...een selected PUMPCONF the control balances the pump run time to match the configured pump changeover delay If this delay has elapsed the pump reversing function is activated during the next time when there is no compressor running in the system To set pump automatic rotation delay 1 Navigate to the Configuration menu 2 Select Pump Configuration PUMPCONF 3 Set Pump Auto Rotation Delay pump_del Pump...

Page 26: ...Night mode allows users to configure the unit to operate with specific parameters in a specific time period During the night period the unit capacity is limited The night period is defined by a start time and an end time that are the same for each day of the week The Night mode settings or the maximum capacity value can be configured by logged in users via the Configuration menu GEN_CONF General C...

Page 27: ...asing in order to make the global unit load increasing smoother For unloading sequence the lead circuit is increased when the lag circuit is stopped See also section 7 12 3 7 12 1 Dual circuit balanced capacity loading Loading sequence Unloading sequence Lead circuit Lag circuit Lead circuit Lag circuit 0 0 100 100 50 0 100 95 55 0 95 95 60 0 95 90 65 0 90 90 70 0 90 85 70 50 85 85 70 55 85 80 70 ...

Page 28: ...he unit is ready to operate Chiller in alert DO 05 30B 31B Relay output active when the alert is tripped Chiller shutdown DO 06 30 31 Relay output active when the unit is stopped due to an alarm Unit capacity A0 01 79 79 Capacity running output 0 to10 VDC Connector type DI Digital Input AI Analogue Input DO Digital Output AU Analogue Output 7 17 Schedule setting The control incorporates two time s...

Page 29: ... TUE WED THU FRI SAT SUN HOL 0 00 P1 1 00 P1 2 00 P1 3 00 4 00 5 00 6 00 7 00 P2 P2 P3 P4 P4 P5 8 00 P2 P2 P3 P4 P4 P5 9 00 P2 P2 P3 P4 P4 P5 10 00 P2 P2 P3 P4 P4 P5 11 00 P2 P2 P3 P4 P4 P5 12 00 P2 P2 P3 P4 P4 13 00 P2 P2 P3 P4 P4 14 00 P2 P2 P3 P4 P4 15 00 P2 P2 P3 P4 P4 16 00 P2 P2 P3 P4 P4 17 00 P2 P2 P3 18 00 P3 19 00 P3 20 00 P3 P6 21 00 22 00 23 00 MON Monday TUE Tuesday WED Wednesday THU T...

Page 30: ...s 3 Set Alarm Reset to Yes IMPORTANT Not all alarms can be reset by the user Some alarms are reset automatically when operating conditions return to normal CAUTION In the event of a power supply interrupt the unit restarts automatically without the need for an external command However any faults active when the supply is interrupted are saved and may in certain cases prevent a circuit or a unit fr...

Page 31: ...er Pressure Transducer Not applicable to this unit Communication failures 30 4101 Loss of communication with Compressor Board A Automatic if communication is re established Unit shuts down Bus installation fault communication error 31 4201 Loss of communication with Compressor Board B As above Unit shuts down As above 32 4301 Loss of communication with Compressor Board C Not applicable to this uni...

Page 32: ...il Filter Drop Pressure Manual Circuit A shuts down Pressure sensor fault wiring defective oil filter installation fault 63 10085 Circuit B High Oil Filter Drop Pressure Manual Circuit B shuts down As above 64 10086 Circuit C High Oil Filter Drop Pressure Not applicable to this unit 65 10075 Circuit A Low Oil level Automatic three alarms within 24 hours or Manual Circuit A shuts down Oil level too...

Page 33: ...han entering water temperature Maintenance alarms 93 13nnn Service Maintenance Alert Number 001 Circuit A Loss of charge 002 Circuit B Loss of charge 004 Water loop size warning 005 Air exchanger cleanness warning 006 Cooler pump 1 servicing required 007 Cooler pump 2 servicing required 008 Condenser pump 1 servicing required 010 Water filter servicing required 011 Compressor A oil filter servicin...

Page 34: ...efective TCPM board 118 1116 Compressor A Unexpected switch setting change Manual Unit shuts down As above 119 1117 Compressor A Power on reset Manual Unit shuts down Verify that power supply cuts have occurred 120 1118 Compressor A UL 1998 critical section software error Manual Unit shuts down Power network noise or defective TCPM board 121 1119 Compressor A UL 1998 current measure dual channel m...

Page 35: ...Unit shuts down Power network noise or defective TCPM board 140 2119 Compressor B UL 1998 current measure dual channel mismatch Manual Unit shuts down Power network noise or defective TCPM board 141 159 3101 3119 Compressor C alarms Not applicable to this unit 9 MAINTENANCE In order to ensure the optimal operation of the equipment as well as the optimization of all the available functionalities it...

Page 36: ...Order No 10207 06 2017 Manufacturer Carrier SCS Montluel France Manufacturer reserves the right to change any product specifications without notice Printed in the European Union ...

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