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30RAP010-060
®
AQUASNAP Air-Cooled Chillers
with COMFORTLINK™ Controls
Controls, Start-Up, Operation,
Service, and Troubleshooting
CONTENTS Page
System Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Page
START-UP AND OPERATION . . . . . . . . . . . . . . . . . . . . 45,46
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . .2
Actual Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
GENERAL . . . . . . . . .
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CONTENTS (cont) WARNING Page Complete Unit Stoppage and Restart . . . . . . . . . . . . . . 64 DO NOT attempt to unbraze factory joints when servicing • GENERAL POWER FAILURE this equipment. Compressor oil is flammable and there is • UNIT ENABLE-OFF-REMOTE CONTACT SWITCH IS no way to detect how much oil may be in any of the OFF refrigerant lines. Cut lines with a tubing cutter as required • CHILLED FLUID PROOF-OF-FLOW SWITCH OPEN when performing service. Use a pan to catch any oil that • OPEN 2
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Control System for 30RAP units. The display has up and down GENERAL arrow keys, an key, and an ESCAPE key. These ENTER This publication contains Controls, Start-Up, Operation, keys are used to navigate through the different levels of the Service, and Troubleshooting information for the 30RAP ® AquaSnap air-cooled chillers. See Table 1. These chillers are display structure. Press the ESCAPE key until the highest equipped with ComfortLink™ controls and electronic expan- operating level is display
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ComfortLink Alarm Status MODE ESC ENTER Run Status Service Test Temperatures Pressures Setpoints Inputs Outputs Configuration Time Clock Operating Modes Alarms ACCESSORY NAVIGATOR™ DISPLAY MODULE — the Navigator module, press the ESCAPE key until the dis- The Navigator module provides a mobile user interface to the play reads, “Select a menu item.” Using the arrow keys move ComfortLink™ control system, which is only available as a to the Configuration mode. Press to obtain access to ENTER field
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Table 2 — Scrolling Marquee Display Menu Structure* RUN SERVICE SET TIME OPERATING MODE TEMPERATURES PRESSURES INPUTS OUTPUTS CONFIGURATION ALARMS STATUS TEST POINTS CLOCK MODES Auto Service Ent and Leave Unit Pressures Cooling General General Display Time of View of Modes Current Test Mode Temps Ckt A Setpoints Inputs Outputs Configuration Day Run Status (MODE) (CRNT) (TEST) (UNIT) (PRC.A) (COOL) (GEN.I) (GEN.O) (DISP) (TIME) (VIEW) Unit Run Head Outputs Month, Outputs Temperatures Pressures
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Table 3 — Run Status Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY SUB-ITEM DISPLAY SUB-ITEMDISPLAY COMMENT ENTRY EXPANSION VIEW ENTER EWT XXX.X F ENTERING FLUID TEMP LWT XXX.X F LEAVING FLUID TEMP SETP XXX.X F ACTIVE SETPOINT CTPT XXX.X F CONTROL POINT LOD.F XXX LOAD/UNLOAD FACTOR STAT X CONTROL MODE 0 = Service Test 1 = Off Local 2 = Off CCN 3 = Off Time 4 = Off Emrgcy 5 = On Local 6 = On CCN 7 = On Time 8 = Ht Enabled 9 = Pump Delay LD.PM LEAD PUMP OCC YES/NO OCCUPIED LS.A
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Table 3 — Run Status Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY SUB-ITEM DISPLAY SUB-ITEMDISPLAY COMMENT ENTRY EXPANSION PM (cont) PMDT PUMP MAINTENANCE DATES ENTER P.1.M0 MM/DD/YY HH:MM P.1.M1 MM/DD/YY HH:MM P.1.M2 MM/DD/YY HH:MM P.1.M3 MM/DD/YY HH:MM P.1.M4 MM/DD/YY HH:MM P.2.M0 MM/DD/YY HH:MM P.2.M1 MM/DD/YY HH:MM P.2.M2 MM/DD/YY HH:MM P.2.M3 MM/DD/YY HH:MM P.2.M4 MM/DD/YY HH:MM ENTER STRN STRAINER MAINTENANCE ENTER SI.ST XXXX HRS STRAINER SRVC INTERVAL Default: 8760
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Table 4 — Service Test Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION TEST ON/OFF SERVICE TEST MODE To Enable Service Test Mode, ENTER move Enable/Off/Remote Contact switch to OFF. Change TEST to ON. Move switch to ENABLE. OUTS OUTPUTS AND PUMPS ENTER EXV.A 0 to 100% EXV A % OPEN EXV.B 0 to 100% EXV B % OPEN FAN1 ON/OFF FAN 1 RELAY FAN2 ON/OFF FAN 2 RELAY FAN3 ON/OFF FAN 3 RELAY FAN4 ON/OFF FAN 4 RELAY FAN5 ON/OFF FAN 5 RELAY FAN6 ON/OFF FAN 6 RELAY V.HPA 0
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Table 5 — Temperature Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION UNIT ENT AND LEAVE UNIT TEMPS ENTER CEWT XXX.X F COOLER ENTERING FLUID CLWT XXX.X F COOLER LEAVING FLUID OAT XXX.X F OUTSIDE AIR TEMPERATURE SPT XXX.X F SPACE TEMPERATURE DLWT XXX.X F LEAD/LAG LEAVING FLUID CIR.A TEMPERATURES CIRCUIT A ENTER SCT.A XXX.X F SATURATED CONDENSING TMP SST.A XXX.X F SATURATED SUCTION TEMP RGT.A XXX.X F COMPR RETURN GAS TEMP D.GAS XXX.X F DISCHARGE GAS T
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Table 8 — Inputs Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION GEN.I GENERAL INPUTS ENTER STST STRT/STOP START/STOP SWITCH FLOW ON/OFF COOLER FLOW SWITCH PM.F.1 OPEN/CLSE COOLER PUMP 1 INTERLOCK PM.F.2 OPEN/CLSE COOLER PUMP 2 INTERLOCK HT.RQ ON/OFF HEAT REQUEST DLS1 ON/OFF DEMAND LIMIT SWITCH 1 DLS2 ON/OFF DEMAND LIMIT SWITCH 2 ICED ON/OFF ICE DONE DUAL ON/OFF DUAL SETPOINT SWITCH CRCT CIRCUITS INPUTS ENTER FKA1 ON/OFF COMPRESSOR A1 FEEDBACK FKA2 ON/OFF CO
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Table 9 — Outputs Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION A.EXV OUTPUTS CIRCUIT A EXV ENTER EXV.A 0 to 100% EXV % OPEN APPR ON/OFF CIRCUIT A APPROACH AP.SP APPROACH SETPOINT X.SH.R SH RESET AT MAX UNL-DIG S.SH.R DIGLOAD TO START SH RST SH_R AMOUNT OF SH RESET OVR.A EXVA OVERRIDE SPH.A SUCTION SUPERHEAT TEMP ASH.S ACTIVE SUPERHEAT SETPT AMP.S ACTIVE MOP SETPT PLM.A CIR A EXV POSITION LIMIT SPR.1 SPARE 1 TEMPERATURE B.EXV OUTPUTS CIRCUIT B EXV E
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Table 10 — Configuration Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION UNIT ENTER UNIT CONFIGURATION SIZE XX UNIT SIZE SZA.1 XX COMPRESSOR A1 SIZE Unit Dependent SZA.2 XX COMPRESSOR A2 SIZE Unit Dependent SZA.3 XX COMPRESSOR A3 SIZE Unit Dependent SZA.4 XX COMPRESSOR A4 SIZE Unit Dependent SZB.1 XX COMPRESSOR B1 SIZE Unit Dependent SZB.2 XX COMPRESSOR B2 SIZE Unit Dependent SZB.3 XX COMPRESSOR B3 SIZE Unit Dependent SZB.4 XX COMPRESSOR B4 SIZE Unit Depe
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Table 10 — Configuration Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION OPT2 UNIT OPTIONS 2 CONTROLS CTRL X CONTROL METHOD Default: Switch ENTER 0 = Enable/Off/Remote Switch 2 = Occupancy 3 = CCN Control LOAD X LOADING SEQUENCE SELECT Default: Equal 1 = Equal 2 = Staged LLCS X LEAD/LAG CIRCUIT SELECT Default: Automatic 1 = Automatic 2 = Circuit A Leads 3 = Circuit B Leads Default: 60 LCWT XX.X F HIGH LCW ALERT LIMIT Range: 2 to 60 F Default: 0 Minu
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Table 10 — Configuration Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION EXV.A CIR A EXV CONFIGURATION ENTER STR.A XXX EXV CIRC.A START POS Range: 0 - 100 Default: 30 MIN.A XXX EXV CIRC.A MIN POSITION Range: 0 - 100 Default: 8 RNG.A XXXXX EXVA STEPS IN RANGE Range: 0 - 65535 Default: * SPD.A XXXXX EXVA STEPS PER SECOND Range: 0 - 65535 Default: 200 POF.A XXX EXVA FAIL POSITION IN % Range: 0 - 100 Default: 0 MIN.A XXXXX EXVA MINIMUM STEPS Range: 0 - 65
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Table 10 — Configuration Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION RSET RESET COOL TEMP CRST X COOLING RESET TYPE Default: No Reset ENTER 0 = No Reset 1 = 4 to 20 mA Input 2 = Outdoor Air Temperature 3 = Return Fluid 4 = Space Temperature Default: 0.0 F MA.DG XX.X F 4-20 - DEGREES RESET Range: –30 to 30 F Default: 125 F (51.7 C) RM.NO XXX.X F REMOTE - NO RESET TEMP Range: 0° to 125 F Default: 0.0F (-17.8 C) RM.F XXX.X F REMOTE - FUL
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Table 10 — Configuration Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION BCST BROADCAST CONFIGURATION ENTER T.D.BC ON/OFF CCN TIME/DATE BROADCAST OAT.B ON/OFF CCN OAT BROADCAST G.S.BC ON/OFF GLOBAL SCHEDULE BROADCAST BC.AK ON/OFF CCN BROADCAST ACK’ER Table 11 — Time Clock Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY SUB-ITEM DISPLAY COMMENT ENTRY EXPANSION TIME TIME OF DAY ENTER HH.MM XX.XX HOUR AND MINUTE Military (00:00 – 23:59) DAT
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Table 11 — Time Clock Mode and Sub-Mode Directory (cont) KEYPAD ITEM SUB-MODE ITEM DISPLAY SUB-ITEM DISPLAY COMMENT ENTRY EXPANSION OVR SCHEDULE OVERRIDE ENTER OVR.T X TIMED OVERRIDE HOURS Default: 0, Range 0-4 hours OVR.L X OVERRIDE TIME LIMIT Default: 0, Range 0-4 hours T.OVR YES/NO TIMED OVERRIDE User Entry Table 12 — Operating Mode and Sub-Mode Directory KEYPAD ITEM SUB-MODE ITEM DISPLAY COMMENT ENTRY EXPANSION MODE MODES CONTROLLING UNIT ENTER MD01 ON/OFF CSM CONTROLLING CHILLER MD02 ON/OFF
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Table 14 — Operating Modes MODE ITEM EXPANSION DESCRIPTION NO. 01 CSM CONTROLLING CHILLER Chillervisor System Manager (CSM) is controlling the chiller. 02 WSM CONTROLLING CHILLER Water System Manager (WSM) is controlling the chiller. 03 MASTER/SLAVE CONTROL Dual Chiller control is enabled. RAMP LOAD LIMITED Ramp load (pull-down) limiting in effect. In this mode, the rate at which leaving fluid temperature is dropped is limited to a predetermined value to prevent compressor overloading. See C
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set to ‘On’ for these boards. The auxiliary board (AUX) has an CONTROLS 8-position DIP switch. Switches 2, 5, and 7 are set to ‘On.’ General — The 30RAP air-cooled scroll chillers contain Control Module Communication the ComfortLink™ electronic control system that controls and monitors all operations of the chiller. RED LED — Proper operation of the control boards can be visually checked by looking at the red status LEDs The control system is composed of several components as (light-emitting di
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3. Connect the red wire to (+) terminal on LVT of the plug, Table 18 — CCN Communication Bus Wiring the white wire to COM terminal, and the black wire to the PART NO. (–) terminal. MANUFACTURER Regular Wiring Plenum Wiring 4. The RJ14 CCN connector on LVT can also be used, but is Alpha 1895 — only intended for temporary connection (for example, a American A21451 A48301 laptop computer running Service Tool). Belden 8205 884421 Columbia D6451 — IMPORTANT: A shorted CCN bus cable will prevent some
