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30RA/RH “B”
30RY/RYH “B”
PRO-DIALOG Control
AQUASNAP
Operation and maintenance instructions
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TABLE OF CONTENTS 1 - SAFETY CONSIDERATIONS..................................................................................................................................................4 1.1 - General .................................................................................................................................................................................4 1.2 - Avoid electrocution ..........................................................................................
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5 - PRO-DIALOG CONTROL OPERATION ............................................................................................................................29 5.1 - Start/stop control ................................................................................................................................................................29 5.2 - Heating/cooling operation ........................................................................................................................
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1 - SAFETY CONSIDERATIONS 2 - GENERAL DESCRIPTION 1.1 - General 2.1 - General Installation, start-up and servicing of equipment can be Pro-Dialog is a system for controlling single or dual-circuit hazardous if certain factors particular to the installation are not 30RA/RY air-cooled liquid chillers or air-to-water 30RH/RYH considered: operating pressures, presence of electrical heat pumps. Pro-Dialog controls compressor start-up needed to components and voltages and the installation site (elevat
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3 - HARDWARE DESCRIPTION 3.2 - Electrical supply to boards 3.1 - General All boards, except the PD-RCPM board, are supplied from a common 24 V a.c. supply referred to earth. Figure 1 CAUTION: Maintain the correct polarity when connecting the power supply to the boards, otherwise the boards may be 4 damaged. 1 2 3 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 a
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3.5 - The controls 3.6 - Connections at the user's terminal block Evaporator pumps 3.6.1 - General description The controller can regulate one or two evaporator pumps and The contacts below are available at the user's terminal block on takes care of automatic change-over between pumps. the NRCP-BASE board (see figure 1). Some of them can only be used if the unit operates in remote operating type (rEM). Evaporator heater The following table summarises the connections at the user’s It protects the
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DUAL-CIRCUIT UNITS Description Connector/channel Terminal Board Remarks Remarks Alarm relay output J3 / CH24 30A - 31A Master NRCP- Indicates alarms/alerts for circuit A* Volt-free contact 24 V a.c. circuit A BASE 48 V d.c. max, 20 V a.c. or V d.c., 3 A max, 80 mA min, Alarm relay output J3 / CH24 30B - 31B Slave NRCP- Indicates alarms/alerts for circuit B* external power supply. circuit B BASE Boiler relay output J3 / CH25 37 - 38 Master NRCP- Boiler start/stop control output. Connector: 4 pin
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3.6.2 - Volt-free contact on/off/cooling/heating without 3.6.5 - Demand limit volt-free contact for dual-circuit units multiplexing On dual-circuit units the operation of the demand limit If the automatic heating/cooling changeover function is not selection contacts is multiplexed. The demand limit setpoints are selected (see sections 4.3.11.3, 5.1 and 5.2) the operation of adjustable in the setpoint menu (see section 4.3.8). contacts 1 and 2 is as follows: 100% Limit 1 Limit 2 Limit 3 (no limit
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4 - SETTING UP PRO-DIALOG CONTROL 4.1 - Local interface general features MAIN INTERFACE SUMMARY INTERFACE PRO-DIALOG JUNIOR INTERFACE MENU BLOCK PRO-DIALOG PLUS INTERFACE The local interface enables a number of operating parameters to A two-digit display showing the number of the item be displayed and modified. selected. A four-digit display showing the contents of the item The interface consists of two distinct parts: the main interface selected. (left-hand section) and the summary interfa
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The summary interface (right hand section) includes a mimic The following operating types can be selected using the diagram of the unit, together with push-buttons and LEDs. It Start/Stop button: gives quick access to the main operating parameters of the unit. OPERATING TYPES 4 DIGIT DISPLAY DESCRIPTION SUMMARY INTERFACE LEDs* LOFF Local Off. The unit is halted in local mode. LED INDICATION WHEN LIT L-On Local On. The unit is in local control mode and is authorised to start. Green LED: The unit
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CHANGING THE OPERATING TYPE 4.3.3 - Modifying the value of a parameter/access to a sub- BUTTON ACTION 2-DIGIT 4-DIGIT menu DISPLAY DISPLAY Press the Enter button for more than 2 seconds to enter the Continually press the operating type C LOFF modification mode or to select a sub-menu. This lets you correct selection button for more than 4 seconds. the value of an item or select a sub-menu with the aid of the up Hold down the Start/Stop button. L-On and down Arrow buttons (if you are authoris
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4.3.4 - Expand display Pressing the Enter button causes a 23 character text expansion to be scrolled across the four-digit display. All user menus provide an expansion of the current displayed parameters. If the expansion is complete the four-digit display reverts to item value. This function can be inhibited through the User Configuration menu. MODIFYING THE VALUE OF A PARAMETER OPERATION PRESS BUTTON MENU LED ITEM NUMBER ITEM VALUE 2-DIGIT DISPLAY 4-DIGIT DISPLAY Hold on the MENU button until
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MENU STRUCTURE 13 MAIN MENUS STATUS TEMPERATURES PRESSURES SETPOINTS INPUTS OUTPUTS CONFIGURATION ALARMS ALARMS HISTORY ALARMS SUB-MENUS SERVICE FACTORY RUNTIME 1 RUNTIME 2 USER MAINTENANCE [USEr] [SErviCE] [FACtorY] [RuntiME 1] [RuntiME 2] [MAintEnAnCE] SUB-SUB-MENUS USER 1 USER 2 SCHEDULE 1 SCHEDULE 2 HOLIDAYS HOUR + DATE BROADCAST SERVICE 1 SERVICE 2 MASTER/SLAVE HSM [USEr 1] [USEr 2] [SCHEduLE 1] [SCHEduLE 2] [HoLidAy] [dAtE] [brodCASt] [SErviCE 1] [SErviCE 2] [MAStEr SLAvE] [HSM] PERIOD 1 P
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Menu tree structure MENU 14 ITEM STATUS TEMP PRESSURES SETPOINTS INPUTS OUTPUTS CONFIG ALARMS ALARMS HIST RUNTIMES 0 Default display Evaporator water Discharge pressure Cooling setpoint 1 Contact 1: on/off/ Compressor status SUB-MENU: User Number of active Historic alarm code SUB-MENU: entering temp. circuit A heating/cooling circuit A Configuration (USEr) alarms/resets** 1** Runtimes 1 1 Mode Evaporator water Suction pressure Cooling setpoint 2 Contact 2: on/off/ Compressor status SUB-MENU: Act
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4.3.5 - Description of the Information menu INFORMATION MENU (3) ITEM FORMAT UNITS DESCRIPTION 0 Automatic display mode. It cycles through the following displays: ±nn.n °C 1: Controlled water temperature: temperature of the water that the unit tries to maintain at the control point. 2: Unit operating type LOFF - Local Off L-On - Local On L-Sc - Local On - based on unit clock. Displayed if the CCN/clock board is installed. CCn - CCN Control. Displayed if the CCN/clock board is installed. rEM - R
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INFORMATION MENU (3) continued ITEM FORMAT UNITS DESCRIPTION 14 ±nn.n °C Active setpoint. This is the current cooling/heating setpoint: it refers to cooling setpoint 1 or cooling/heating setpoint 2. See section 5.6.1. 15 ±nn.n Control point. This is the setpoint used by the controller to adjust the temperature of the leaving or entering water (according to Forc °C configuration). Control point = active setpoint + reset. See section 5.6 The value is displayed in turn with 'Forc' when the unit is
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4.3.6 - Description of the Temperatures menu 4.3.7 - Description of the Pressures menu TEMPERATURES MENU [2] PRESSURES MENU [2] ITEM FORMAT UNITS COMMENTS ITEM FORMAT UNITS COMMENTS 0 ±nn.n °C Water heat exchanger entering water tempera- 0 nnnn kPa Discharge pressure, circuit A. ture Relative pressure. 1 ±nn.n °C Water heat exchanger leaving water tempera- 1 nnn kPa Suction pressure, circuit A. ture Relative pressure. 2 ±nn.n °C Outdoor temperature 2 [1] nnnn kPa Discharge pressure, circuit B. R
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LEAVING WATER TEMPERATURE CONTROL RESET THRESHOLDS IN COOLING OR HEATING MODE SETPOINT - °C R-22/R-407C Reset threshold Zero Full Minimum cooling value Reset based on outdoor -10 to 51 °C -10 to 51 °C Water 5.0 air temperature Medium brine 0.0 Reset based on 0 to 11.1 °C 0 to 11.1 °C Brine -10.0 Delta T Maximum cooling value 20.0 Feedback setpoint, cooling 6.0 Minimum heating value 20.6 Maximum heating value 56.1 Feedback setpoint heating 48.0 ENTERING WATER TEMPERATURE CONTROL SETPOINT - °C R-2
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4.3.10 - Description of the Outputs/Tests menu 4.3.10.1 - General This menu displays the status of the controller outputs. More- over, when the machine is fully stopped (LOFF) the outputs can be activated for manual or automatic tests (the access to the tests is password controlled). 4.3.10.2 - Menu description OUTPUTS STATUS & TESTS MENU [2] [3] ITEM FORMAT UNITS DESCRIPTION 0b b b Circuit A compressors, command status 1 2 3 b = compressor A1 1 tESt b = compressor A2 2 FAIL b = compressor A3 3
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OUTPUTS STATUS & TESTS MENU [2] [3] continued ITEM FORMAT UNITS DESCRIPTION 13 [1] b b b b Additional heating stage status. 1 2 3 4 tESt b = stage 1 1 b = stage 2 2 b = stage 3 3 b = stage 4 4 In test mode the arrow keys successively display 0001, 0010, 0100 and 1000 to force the status of each electric heating stage in turn. This item is only displayed for heat pump units controlling additional electric heater stages. See section 5.12. 14 [1] YES - Used for local interface test only. Lights or
