ER65-DRW Controller. Heating Applications. Product Bulletin. Heating Controller

Transcription

1 PB_ER65-DRW_ 202 ER65-DRW Controller Heating Applications Product Bulletin The controller is a digital device for domestic or residential heating units. It covers water and air heating applications. All-in-one design allows full flexibility to apply a single controller to many small heating applications. The controller incorporates a comprehensive energy saving application, and can be connected to a supervisory system via its on board communications port. Heating Controller Robust front panel for durability and long term use Removable plug connectors for quick mounting and wiring Direct 230V supply: no external transformer required Embedded RS485: no additional communication card required Selectable inputs and outputs: up to 3 sensors, 2 digital inputs and 5 outputs Standard heating systems Pre-set models and selectable options to extend controller options monitoring

2 PB_ER65-DRW_ 202 Dimensions (mm)

3 PB_ER65-DRW_ 202 Wiring NEUTRAL TR2 TR 0.5A 0.5A DO 7(2)A L DO2 7(2)A AUX 7(2)A All outputs must be supplied with same power: 24 Vac OR 230 Vac DI DI2 POWER SUPPLY 230 VAC Communication Wirings MODBUS Rt + Rt - CABLE ACCESSORY 50 cm Rt+ (blue) 4 - Rt- (white) ER-COM-2 3

4 PB_ER65-DRW_ 202 Device Features Features Description Heating application manager A single product code includes pre-set models for hot water and hot air applications. Keyboard Lock Display can be locked in order to prevent the unauthorised changing of operating parameters. Direct Power Supply Devices are powered directly with 230 VAC. RS485 IN Communication Port Multifunction Inputs (DI/DI2) RS485 communication port supports Modbus RTU protocol. Port is used for commissioning operations and integration to networked systems. Digital inputs are available to manage alarm contact or remote commands such standby or 2 nd setpoint. 2 nd setpoint feature allows saving energy during reduced or unoccupied periods. OUT Auxiliary Output Auxiliary relay output is available to report alarm or unit status Monitoring (Min/Max) Device continually monitors the current temperature and stores the minimum and maximum values. These values can be reviewed via the built in display. 4

5 PB_ER65-DRW_ 202 Controls Control List Compensator circuit Domestic hot water circuit Air system Description Unit Enable X X X Unit is enabled manually from device key pad or remote contact. Pump/Generator Enable X X Start/Stop sequence of the pump and the generator. Damper/Fan enable Valve Control Fixed setpoint X X X X Start/Stop sequence of the damper and the fan. Control maintains a constant supply temperature in the heating system. Valve Control Compensated setpoint X X Control maintains a variable supply temperature in the heating system. is reset by inside and/or outside temperatures. High Limit Control Frost control X X A temperature high limit sensor limits the valve control in order to prevent overheating. A temperature low limit prevents from freezing pipes. Control is made on the outside air sensor or a low limit sensor. Flow Control X X X Flow is monitored with a differential pressure or flow switch installed on the pump or fan. Unit operation is prevented and alarm generated when no flow is detected. Filter Control X Dirty filter is detected through a differential pressure switch installed on the filter. Dirty filter detection generates an alarm. The unit continues to operate. All controls are detailed in the application note pages 5

6 PB_ER65-DRW_ 202 Display layout Standby command menu selection Info menu selection Alarm mute/reset Up and down scroll keys C % h value Valve position Output counters LED continous = hours LED blink = x000 hours Display Menus Navigation Info Home SETPOINT >5 CONFIGURATION INFO Escape* *Automatic ESCAPE after 30 sec.... Settings + 2 Parameter Settings Commands Home Reset (counter, min/max temperature) + 2 >5 STANDBY ALARM MUTE/RESET + 2 6

7 PB_ER65-DRW_ 202 Messages and Error Codes Code Description Action F t sensor failure Check t wiring or replace sensor F2 t2 sensor failure Check t2 wiring or replace sensor F3 t3 sensor failure Check t3 wiring or replace sensor A General alarm Check and rectify alarm cause A2 Flow alarm Check and correct reason for no flow A3 Filter alarm or info alarm Clean/Replace filter media or check alarm cause off Standby Restart unit via keypad or remote input Mtn Maintenance warning Program maintenance operation and reset counter when done Info Menu Code Out Out2 t t2 t3 thi tlo Loc Description DO output status and counter DO2 output status and counter temperature sensor value temperature sensor value temperature sensor value Monitored temperature highest peak Monitored temperature lowest peak Keyboard lock parameter Menu Code Description csp 7

8 PB_ER65-DRW_ 202 Configuration Menu >5 Code Default Range Description Mod / 02 SETUP Application selector: 00: Compensator cicuit 0: Domestic hot water 02: Air system WARNING: MOD parameters have to be defined before setting the configuration parameters. Any new setup could recover default settings. WATER VALVE CONTROL Valve position on standby: PoS / 02 00= 0% 0= 00% 02= Control modulation PAt 60 0 / 999 sec 3 points actuator stroke time Pb / 50 C Valve proportional band it 0 0 / 999 sec Valve integral time Str 0 00 / 02 strategy 00= fixed setpoint 0= Room and outside compensated setpoint 02= outside compensation Fixed Settings (Str=00) SPL 0 0 / SPH Fixed setpoint: setpoint low limit SPH 20 SPL / 20 C Fixed setpoint: setpoint high limit SP 65 SPL / SPH Fixed setpoint setpoint ASP 40 SPL / SPH Fixed setpoint: 2 nd setpoint Compensated Settings (Str=0) RSP 20 0 / 40 C Room setpoint RPb / 50 C Room proportional band LSP 40 0 / 20 C Compensated minimum setpoint oa / 20 C Outside low limit setpoint oa / 50 C Ouside high limit setpoint oo 40 0 / 20 C Compensated maximum setpoint at outside high limit oo / 20 C Compensated maximum setpoint at outside low limit Compensated Settings (Str=02) oa / 20 C Outside low limit setpoint oa / 50 C Outside high limit setpoint oo 40 0 / 20 C Compensated minimum setpoint oo / 20 C Compensated maximum setpoint Domestic Hot Water - Water High Limit Option HF NO no / YES Water high limit selector hsp 80 0 / 20 C Water high limit Control: setpoint hpb / 50 C Water high Limit Control: proportional band Code Default Range Description UNIT CONTROL Sb YES no / YES Standby key enable Fd 0 / 0 min Pump/Fan off delay Od 0 / 0 min Generator/Fan On delay Md 0 / 0 min Unit minimum off delay Mtc 0 0 / 600 (x00 hours) Maintenance threshold alarm Domestic Hot Water - Frost Control Option PP 0 0 / 68 hours pump off cycle period Pd 0 0 / 99 min pump off cycle duration FF / 02 Frost control selector: 00: not used 0: pump off cyle on frost detection 02: pump always on frost detection FSp 0 0 / 20 C Frost control setpoint FhY / 50 C Frost control hysteresis MULTI FUNCTION INPUT Digital input selector: 00 = Not used 0 = Interlock alarm dm / = Flow alarm 03 = Info/Filter alarm 04 = 2nd setpoint 05 = Standby dd 5 0 / 99 min Digital input alarm delay d2m / 05 Digital input 2 selector: 00 = Not used 0 = Interlock alarm 02 = Flow alarm 03 = Info/Filter alarm 04 = 2nd setpoint 05 = Standby d2d 5 0 / 99 min Digital input 2 alarm delay PROBES So 0-2 / 2 C Sensor offset So2 0-2 / 2 C Sensor offset So3 0-2 / 2 C Sensor offset Sd t t, t2, t3 Displayed sensor tld 5 / 30 min monitoring period Pu 3 0 / 00 Display refreshing time AUXILIARY OUTPUT Snd no no / YES Buzzer enable AA AL no, AL0, AL, STA no: not used AL0 = Alarm at relays opening AL = Alarm at relays closing STA = Controller status ADDRESS Add 255 / 255 Network address 8

9 PB_ER65-DRW_ 202 Applications Compensator Circuit Controller application is configured to supply hot water to the terminal coils, perimeter heating or radiator circuits. System includes a pump, a boiler and a motorised water valve. Hot water setpoint can be compensated according to the inside and/or outside temperatures. L N 24 Vac OR 230 Vac N DI DI2 POWER 230 VAC Domestic hot water circuit Controller application is configured to maintain the water temperature in the hot water cylinder. System includes a pump, a boiler and a motorised water valve. A high limit sensor prevents the water from overheating. Optional frost control can be used to protect the pipes freezing. L N N DI DI2 POWER 230 VAC Hot air system Controller application is configured to supply hot air. System includes a damper, a fan and a motorised water valve. Air temperature can be compensated according to the inside and/or outside temperatures. L N N DI DI2 DI DI2 C C DI2 POWER 230 VAC DI 9

10 PB_ER65-DRW_ 202 Application Note - Compensator Circuit Heat Valve Control PI control Valve control is based on a Proportional Integral (PI) control algorithm. Valve Control 00% Proportional Band 0% 3-point valve actuation Valve actuator is controlled via a pair of triacs (see also wiring diagram). One triac opens the valve and the other closes it. This time based algorithm ensure accurate positioning of the valve based on demand. 2 3 Example: M908 Actuator 3: Valve opens 2: Valve closes : Common Controller application is configured to supply hot water to the terminal coils, perimeter heating or radiator circuits. System includes a pump, a boiler and a motorised water valve. Hot water setpoint can be compensated according to the inside and/or outside temperatures. Unit Enable & Time Counter Unit is enabled manually. Local enable is available from the controller keypad. Remote enable can be wired to digital input (e.g. signal from a time clock). All controls are activated as soon as the unit is enabled. A counter accumulates the unit running hours. A threshold can be defined to activate a maintenance alarm. Pump & Boiler Enable Pump starts immedately when the unit is enabled. Boiler or heater operation is delayed until after pump activation. Pump operation continues for a period after unit disabled to dissipate residual heat. Unit Enable Pump Enable Off Delay Unit Off is selected between fixed setpoint and compensated setpoint. Fixed (option) User setpoint adjustment is limited to pre-defined minimum and maximum values. An alternative setpoint can be defined to save energy during night or reduced load periods. Alternative setpoint mode is activated through the digital input. limits Maximum setpoint Minimum setpoint 2 nd Selection (option) Normal setpoint 2 nd Outside Compensated (option) is compensated by the outdoor temperature between a minimum and maximum value. increases with low outside temperature conditions. Y2-Max Compensated or IN Generator Enable On Delay Flow Control (option) Water flow is monitored with a differential pressure or flow switch installed on the pump. Unit operation is prevented and alarm generated when no flow is detected. Up to 3 automatic restarts following flow failure are permitted. After 3 failed starts an alarm is generated and a manual reset is required. Flow Delay Y-Min X Outside Control Outside air Room and Outside Compensated is compensated by the room temperature between a minimum and maximum value. increases with low inside temperature conditions. Outside temperature defines the maximum value that the setpoint can reach. Compensated X2 Maximum Minimum off time Automatic re-start Manual re-start Off On Flow Alarm Unit Status Manual Reset Maximum Minimum Room/Discharge Room/Discharge Proportional Band Room/Discharge Room/Discharge Control Y2 Y X X2 Outside Control Outside air 0

11 PB_ER65-DRW_ 202 Parameter Setting - Compensator Circuit Code Default Range Description Mod / 02 SETUP Application selector: 00: Compensator cicuit 0: Domestic hot water 02: Air system WARNING: MOD parameters have to be defined before setting the configuration parameters. Any new setup recovers original default settings. WATER VALVE CONTROL Valve position on standby: PoS / 02 00= 0% 0= 00% 02= Control modulation PAt 60 0 / 999 sec 3 points actuator stroke time Pb / 50 C Valve proportional band it 0 0 / 999 sec Valve integral time Str 0 00 / 02 strategy 00= fixed setpoint 0= Room and outside compensated setpoint 02= outside compensation Fixed Settings (Str=00) SPL 0 0 / SPH Fixed setpoint: setpoint low limit SPH 20 SPL / 20 C Fixed setpoint: setpoint high limit SP 65 SPL / SPH Fixed setpoint setpoint ASP 40 SPL / SPH Fixed setpoint: 2 nd setpoint Compensated Settings (Str=0) RSP 20 0 / 40 C Room setpoint RPb / 50 C Room proportional band LSP 40 0 / 20 C Compensated minimum setpoint oa / 20 C Outside low limit setpoint oa / 50 C Ouside high limit setpoint oo 40 0 / 20 C Compensated maximum setpoint at outside high limit oo / 20 C Compensated maximum setpoint at outside low limit Compensated Settings (Str=02) oa / 20 C Outside low limit setpoint oa / 50 C Outside high limit setpoint oo 40 0 / 20 C Maximum Compensated setpoint oo / 20 C Minimum Compensated setpoint Code Default Range Description UNIT CONTROL Sb YES no / YES Standby key enable Fd 0 / 0 min Pump/Fan off delay Od 0 / 0 min Generator/Fan On delay Md 0 / 0 min Unit minimum off delay Mtc 0 0 / 600 (x00 hours) Maintenance threshold alarm MULTI FUNCTION INPUT Digital input selector: 00 = Not used 0 = Interlock alarm dm / = Flow alarm 03 = Info alarm 04 = 2nd setpoint 05 = Standby dd 5 0 / 99 min Digital input alarm delay d2m / 05 Digital input 2 selector: 00 = Not used 0 = Interlock alarm 02 = Flow alarm 03 = Info alarm 04 = 2nd setpoint 05 = Standby d2d 5 0 / 99 min Digital input 2 alarm delay PROBES So 0-2 / 2 C Sensor offset So2 0-2 / 2 C Sensor offset So3 0-2 / 2 C Sensor offset Sd t t, t2, t3 Displayed sensor tld 5 / 30 monitoring period Pu 3 0 / 00 Display refreshing time AUXILIARY OUTPUT Snd no no / YES Buzzer enable AA AL no, AL0, AL, STA no: not used AL0 = Alarm at relays opening AL = Alarm at relays closing STA = Controller status ADDRESS Add 255 / 255 Network address

12 PB_ER65-DRW_ 202 Application Note - Domestic Hot Water Circuit Frost Control (option) Frost control can be applied during off periods. It is based on the outside air sensor and enables the pump. Option : Pump is periodically restarted during off cycle if frost condition is detected. Option 2: Pump is periodically restarted during off cycle. Pump operation becomes continuous if frost condition occurs. Frost ON Frost Hysteresis Off Cycle Frost On Frost Off Off Cycle Option Pump activity Frost OFF Frost Frost Sensor Frost On Frost Off Option 2 Heat Valve Control PI control Valve control is based on a Proportional Integral (PI) control algorithm. Valve Control 00% Proportional Band Controller application is configured to maintain the water temperature in the hot water cylinder. System includes a pump, a boiler and a motorised water valve. A high limit sensor prevents the water from overheating. Optional frost control can be used to protect the pipes freezing. Unit Enable & Time Counter Unit is enabled manually. Local enable is available from the controller keypad. Remote enable can be wired to digital input (e.g. signal from a time clock). All controls are activated as soon as the unit is enabled. A counter accumulates the unit running hours. A threshold can be defined to activate a maintenance alarm. Pump & Boiler Enable Pump starts immedately when the unit is enabled. Boiler or heater operation is delayed until after pump activation. Pump operation continues for a period after unit disabled to dissipate residual heat. Pump can be re-started during off period to prevent pipe freezing. Off cycle is activated according to the frost control when applicable. Unit Enable Pump Enable Off Delay Generator Enable On Delay Unit Off Off Cycle Flow Control (option) Water flow is monitored with a differential pressure or flow switch installed on the pump. Unit operation is prevented and alarm generated when no flow is detected. Up to 3 automatic restarts following flow failure are permitted. After 3 failed starts an alarm is generated and a manual reset is required. Flow Delay Automatic re-start Manual re-start Off On Flow Alarm Unit Status 0% High limit Control Additional high limit sensor prevents from water overheating. 00% 0% 00% 0% Valve Control Water Control Water Sensor High Limit Proportional Band High Limit Sensor High Limit High Limit Control MIN Valve Output 3-point valve actuation Valve actuator is controlled via a pair of triacs (see also wiring diagram). One triac opens the valve and the other closes it. This time based algorithm ensure accurate positioning of the valve based on demand. 2 3 Example: M908 Actuator 3: Valve opens 2: Valve closes : Common : Fixed User setpoint adjustment is limited to pre-defined minimum and maximum values. An alternative setpoint can be defined to save energy during night or reduced load periods. Alternative setpoint mode is activated through the digital input. limits 2 nd Selection (option) Maximum setpoint Normal setpoint 2 nd Minimum off time Manual Reset Minimum setpoint or IN 2

13 PB_ER65-DRW_ 202 Parameter Setting - Domestic Hot Water Circuit Code Default Range Description Mod 0 00 / 02 SETUP Application selector: 00: Compensator cicuit 0: Domestic hot water 02: Air system WARNING: MOD parameters have to be defined before setting the configuration parameters. Any new setup recovers original default settings. WATER VALVE CONTROL Valve position on standby: PoS / 02 00= 0% 0= 00% 02= Control modulation PAt 60 0 / 999 sec 3 points actuator stroke time Pb / 50 C Valve proportional band it 0 0 / 999 sec Valve integral time Str / 02 strategy 00= fixed setpoint 0= Room and outside compensated setpoint 02= outside compensation Fixed Settings SPL 0 0 / SPH Fixed setpoint: setpoint low limit SPH 20 SPL / 20 C Fixed setpoint: setpoint high limit SP 65 SPL / SPH Fixed setpoint setpoint ASP 40 SPL / SPH Fixed setpoint: 2 nd setpoint Domestic Hot Water - Water High Limit Option HF NO no / YES Water high limit selector hsp 80 0 / 20 C Water high limit Control: setpoint hpb / 50 C Water high Limit Control: proportional band Code Default Range Description UNIT CONTROL Sb YES no / YES Standby key enable Fd 0 / 0 min Pump/Fan off delay Od 0 / 0 min Generator/Fan On delay Md 0 / 0 min Unit minimum off delay Mtc 0 0 / 600 (x00 hours) Maintenance threshold alarm Domestic Hot Water - Frost Control Option PP 0 0 / 68 hours Pump off cycle period Pd 0 0 / 99 min Pump off cycle duration FF 0 00 / 02 Frost control selector: 00: not used 0: pump off cyle on frost detection 02: pump always on frost detection FSp 0 0 / 20 C Frost control setpoint FhY / 50 C Frost control hysteresis MULTI FUNCTION INPUT Digital input selector: 00 = Not used 0 = Interlock alarm dm / = Flow alarm 03 = Info alarm 04 = 2nd setpoint 05 = Standby dd 5 0 / 99 min Digital input alarm delay d2m / 05 Digital input 2 selector: 00 = Not used 0 = Interlock alarm 02 = Flow alarm 03 = Info alarm 04 = 2nd setpoint 05 = Standby d2d 5 0 / 99 min Digital input 2 alarm delay PROBES So 0-2 / 2 C Sensor offset So2 0-2 / 2 C Sensor offset So3 0-2 / 2 C Sensor offset Sd t t, t2, t3 Displayed sensor tld 5 / 30 monitoring period Pu 3 0 / 00 Display refreshing time AUXILIARY OUTPUT Snd no no / YES Buzzer enable AA AL no, AL0, AL, STA no: not used AL0 = Alarm at relays opening AL = Alarm at relays closing STA = Controller status ADDRESS Add 255 / 255 Network address 3

14 PB_ER65-DRW_ 202 Application Note - Hot Air System Heat Valve Control PI control Valve control is based on a Proportional Integral (PI) control algorithm. Valve Control 00% Proportional Band DI DI2 Controller application is configured to supply hot air. System includes a damper, a fan and a motorised water valve. Air temperature can be compensated according to the inside and/or outside temperatures. Unit Enable & Time Counter Unit is enabled manually. Local enable is available from the controller keypad. Remote enable can be wired to digital input (e.g. signal from a time clock). All controls are activated as soon as the unit is enabled. A counter accumulates the unit running hours. A threshold can be defined to activate a maintenance alarm. Damper & Fan Enable Damper is opened when unit is enabled. Fan start is delayed to enable complete damper opening. Fan run-on is provided in order to remove heat in the air system. Unit Enable Damper Enable Fan Enable On Delay Unit Off C C Post Ventilation Delay Flow Control (option) Airflow is monitored with a differential pressure or flow switch installed on the fan. Unit operation is prevented and alarm generated when no flow is detected. Up to 3 automatic restarts following flow failure are permitted. After 3 failed starts an alarm is generated and a manual reset is required. Flow Delay Minimum off time Automatic re-start Manual re-start Off On Flow Alarm Unit Status Manual Reset Filter Control (option) Dirty filter is detected through a differential pressure switch installed on the filter. Dirty filter detection generates an alarm. The unit continues to operate. 0% 3-point valve actuation Valve actuator is controlled via a pair of triacs (see also wiring diagram). One triac opens the valve and the other closes it. This time based algorithm ensure accurate positioning of the valve based on demand. 2 3 Example: M908 Actuator 3: Valve opens 2: Valve closes : Common is selected between fixed setpoint and compensated setpoint. Fixed User setpoint adjustment is limited to pre-defined minimum and maximum values. An alternative setpoint can be defined to save energy during night or reduced load periods. Alternative setpoint mode is activated through the digital input. limits Maximum setpoint Minimum setpoint 2 nd Selection (option) Normal setpoint 2 nd Outside Compensated (option) is compensated by the outdoor temperature between a minimum and maximum value. increases with low outside temperature conditions. Y2-Max Y-Min Compensated X Outside Control Outside air Room and Outside Compensated (option) is compensated by the room temperature between a minimum and maximum value. increases with low inside temperature conditions. Outside temperature defines the maximum value that the setpoint can reach. Maximum Minimum Compensated Room/Discharge Proportional Band X2 Room/Discharge Maximum Y2 Y or IN Outside air Room/Discharge Room/Discharge Control X X2 Outside Control 4

15 PB_ER65-DRW_ 202 Parameter Setting - Hot Air System Code Default Range Description Mod / 02 SETUP Application selector: 00: Compensator cicuit 0: Domestic hot water 02: Air system WARNING: MOD parameters have to be defined before setting the configuration parameters. Any new setup recovers original default settings. WATER VALVE CONTROL Valve position on standby: PoS / 02 00= 0% 0= 00% 02= Control modulation PAt 60 0 / 999 sec 3 points actuator stroke time Pb / 50 C Valve proportional band it 0 0 / 999 sec Valve integral time Str / 02 strategy 00= fixed setpoint 0= Room and outside compensated setpoint 02= outside compensation Fixed Settings (Str=00) SPL 0 0 / SPH Fixed setpoint: setpoint low limit SPH 20 SPL / 20 C Fixed setpoint: setpoint high limit SP 30 SPL / SPH Fixed setpoint setpoint ASP 20 SPL / SPH Fixed setpoint: 2 nd setpoint Compensated Settings (Str=0) RSP 20 0 / 40 C Room setpoint RPb / 50 C Room proportional band LSP 20 0 / 20 C Compensated minimum setpoint oa / 20 C Outside low limit setpoint oa / 50 C Ouside high limit setpoint oo 20 0 / 20 C Compensated maximum setpoint at outside high limit oo / 20 C Compensated maximum setpoint at outside low limit Compensated Settings (Str=02) oa / 20 C Outside low limit setpoint oa / 50 C Outside high limit setpoint oo 20 0 / 20 C Compensated minimum setpoint oo / 20 C Compensated maximum setpoint Code Default Range Description UNIT CONTROL Sb YES no / YES Standby key enable Fd 0 / 0 min Pump/Fan off delay Od 0 / 0 min Generator/Fan On delay Md 0 / 0 min Unit minimum off delay Mtc 0 0 / 600 (x00 hours) Maintenance threshold alarm MULTI FUNCTION INPUT Digital input selector: 00 = Not used 0 = Interlock alarm dm / = Flow alarm 03 = Filter alarm 04 = 2nd setpoint 05 = Standby dd 5 0 / 99 min Digital input alarm delay d2m / 05 Digital input 2 selector: 00 = Not used 0 = Interlock alarm 02 = Flow alarm 03 = Filter alarm 04 = 2nd setpoint 05 = Standby d2d 5 0 / 99 min Digital input 2 alarm delay PROBES So 0-2 / 2 C Sensor offset So2 0-2 / 2 C Sensor offset So3 0-2 / 2 C Sensor offset Sd t t, t2, t3 Displayed sensor tld 5 / 30 min monitoring period Pu 3 0 / 00 Display refreshing time AUXILIARY OUTPUT Snd no no / YES Buzzer enable AA AL no, AL0, AL, STA no: not used AL0 = Alarm at relays opening AL = Alarm at relays closing STA = Controller status ADDRESS Add 255 / 255 Network address 5

16 PB_ER65-DRW_ 202 Ordering Codes Controller ER65-DRW-50C Heating controller, sensor not included, compatible with the ER-NTC sensor line Technical Specification Product Codes Power Requirements Protection Class ER65-DRW-50C 230 VAC/VDC ±0%, 50/60 hz, 3 W IP20 Ambient Operating Conditions -0 C to 50 C 5 to 80% RH (non-condensing) Range -40 to 20 C Accuracy Sensor +/- K NTC Relay Outputs see figure 2 Dimensions see figure Compliance Johnson Controls, Inc., declares that this product is in compliance with the essential requirements and other relevant provisions of the EMC Directive 2004/08/EC and Low Voltage Directive 2006/95/EC Building Efficiency Headquarters: Milwaukee, Wisconsin, USA Branch Officies: Principal Cities World-wide Metasys and Johnson Controls are registered trademarks of Johnson Controls, Inc. All other marks herein are the marks of their respective owners. Copyright 20 Johnson Controls, Inc. All rights reserved. Any unauthorized use or copying is strictly prohibited.