Engineered Comfort Fan Coil Controller EZstat Installation And Operation Manual Download Page 1

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EC-EZstat

Date: 9-2014

Supersedes: NEW

Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation.

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www.Engineered-Comfort.com

Fan Coil Controller

– EZstat

Summary of Contents for Fan Coil Controller EZstat

Page 1: ...2014 Supersedes NEW Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation Page 1 of 36 www Engineered Comfort com Fan Coil C...

Page 2: ...ADMIN PASSWORD 13 5 3 CHANGING THE ACTIVE SETPOINTS 13 5 4 SETTING THE OPERATING MODES 14 6 COMMISSIONING FUNCTIONS 15 6 1 CREATING AND OR CHANGING PASSWORDS 16 6 2 SETTING THE COMMISSIONING SETPOINTS...

Page 3: ...EZstat combines the power of a space mounted equipment controller with the convenience of built in temperature sensors The EZstat controller includes a wide range of factory supplied programs for two...

Page 4: ...omatically detected Inputsacceptindustry standard10 000 TypeII NailorPart H1 1989 orTypeIII NailorPart H1 0246andH1 1764B thermistors sensors Input overvoltage protection up to 24 VAC continuous 12 bi...

Page 5: ...FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may...

Page 6: ...ate 9 2014 Supersedes NEW Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation Page 6 of 36 3 4EZstatFeatures Power and Outp...

Page 7: ...he day Exposed to drafts from windows diffusers or returns Exposed to air flow through connecting conduits or empty spaces behind walls Rough in preparation Complete rough in wiring at each location b...

Page 8: ...ls The input includes the internal pull up resistor Follow the instructions supplied with the sensor for installation When a remote space temperature input is connected to the EZstat the remote temper...

Page 9: ...outputs are configured for specific applications Depending on the configuration the EZstat outputs are designed for either 24 VAC or 0 10 VDC loads The outputs may represent analog or digital signals...

Page 10: ...following diagram shows the connections for a modulating speed fan The fan start circuit must be a 24 VAC circuit Connect it to the FAN L output The speed control is a 0 10 VDC analog output Fig 4 5...

Page 11: ...g 4 7 Connecting on off valve COM R B05 4 4 Connecting Power The EZstat requires an external 24 VAC power source Use the following guidelines when choosing and wiring transformers Use only a Class 2 t...

Page 12: ...wing functions Back Returns to the previous menu Cncl Cancels current changes Done Push this button at any point while entering a value For example if you have entered the first two digits of a passwo...

Page 13: ...2 respectively User functions may require a password consisting of four numbers Once either the User or Admin level password is entered the functions will remain unlocked for 60 seconds after the las...

Page 14: ...the fan mode from the following options Auto Default Auto function is utilized to match EPIC ECM motor with this feature for optimum energy savings AUTO FAN RESET for ECM applications only by enabling...

Page 15: ...automatically place the system in the override mode F 65 AUTO AUTO Enter Cncl LOCAL OVRD ON OFF Change the display units To temporarily change the display units to either Celsius or Fahrenheit press a...

Page 16: ...lls up Password 2 in the program This is generally used by a controls technician to set up and commission the EZstat When set will lock user out from setpoints fan operation occupancy and heating and...

Page 17: ...mum cooling setpoint that a user can select as the active setpoint MAX HEATING The maximum heating setpoint that a user can select as the active setpoint DIFFERENTIAL The minimum value between the coo...

Page 18: ...rocedure Steps Display Starting Display 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO Enter SECURITY ADMIN LEVEL 0 0 0 0 Change the...

Page 19: ...s between local standard time and Universal Time Coordinated The value of the property ranges from 780 to 780 seconds The time zones to the west of the zero degree meridian are positive values those t...

Page 20: ...of the week at one time WEEKDAYS Sets the schedule for Monday to Friday Saturday and Sunday are not changed WEEKEND Sets the schedule for Saturday and Sunday Monday to Friday remain unchanged INDIVIDU...

Page 21: ...e will override the values of the weekly schedule DATE RANGE Enter a range of dates on which the values and times listed in the holiday schedule will override the values of the weekly schedule WEEK N...

Page 22: ...tpoint as the active setpoint Set the fan delay From the SYSTEM menu choose FAN DELAY OFF to set the time the system fan will continue to run after the last heat ing or cooling stage is turned off Set...

Page 23: ...8 337 1 92 526 4 33 705 6 74 873 9 15 343 1 99 531 4 40 710 6 81 878 9 22 349 2 06 536 4 47 715 6 88 883 9 29 355 2 13 542 4 54 720 6 95 888 9 36 361 2 20 547 4 61 725 7 02 893 9 43 367 2 27 552 4 68...

Page 24: ...two pipe only From the SYSTEM menu choose Stage 1 fan Select the fan for Stage 1 Enter STAGE 1 FAN 50 Set Stage 2 Fan two pipe only From the SYSTEM menu choose Stage 2 fan Select the fan for Stage 2...

Page 25: ...ABLED Procedure Steps Display Starting Display 1 Start at the temperature display 2 Enter Password 2 The display changes to the MAIN menu display F 70 AUTO AUTO Enter SECURITY ADMIN LEVEL 0 0 0 0 Choo...

Page 26: ...oves the password The EZstat is supplied without passwords 1 From the PASSWORD1 or PASSWORD2 menu either the or button to change the first digit of the password 2 Press the Enter button to select the...

Page 27: ...etpoint Limits The programming in the EZstat will limit the setpoint entry so that no heating setpoint is set higher than its corresponding cooling setpoint If a user is adjusting a setpoint and it fa...

Page 28: ...ng applications The EZstat is configured for a Type III thermistor sensor or Nailor Part H1 1764B to monitor water temperature The water temperature can be monitored as an analog input and is also sto...

Page 29: ...n be added to two pipe systems Typically this heat is a duct or baseboard resistance heater controlled by a relay When the supply water type is chilled water and there is a call for heat the EZstat co...

Page 30: ...er with LOCAL OVRD Time To adjust default time of 60 mins select LOCAL OVRD TIME The control will reset back to Auto Mode while ensuring the efficiency benefits of EON variable speed motor 8 SYSTEM IN...

Page 31: ...Fan Speed Control 0 100 0 10 V B01 LOW Fan Low Speed Unknown B02 MEDIUM Fan Medium Speed Unknown B03 HIGH Fan High Speed Unknown B04 BINARY_COOLING Cooling Valve Unknown B05 BINARY_HEATING Heating Val...

Page 32: ...for the EZstat applications All of the setpoints are available from the user interface Value object Name Description AV3 ACT_COOL_STPT Active Cooling Setpoint AV4 ACT_HEAT_STPT Active Heating Setpoin...

Page 33: ...6 DAT_ENABLE DAT Enable BV7 DAT_SENSOR DAT Sensor Present BV9 FAN_NEED Call for Fan BV10 COOL_HEAT_NEED Cooling or Heating needed BV11 SPEED_UP Speed up Timers x15 BV13 OCCUPIED_FAN Fan On During Occu...

Page 34: ...no more than 128 addressable BACnet devices to one MS TP network The devices can be any mix of EZstat controllers other BACnet controllers or BACnet routers To prevent network traffic bottlenecks lim...

Page 35: ...or specification without notice or obligation Page 35 of 36 The controllers or devices on the physical ends of the MS TP wiring segment must have end of line EOL termination installed for proper netwo...

Page 36: ...oil Controller EZstat EC EZstat Date 9 2014 Supersedes NEW Engineered Comfort reserves the right to change any information concerning product or specification without notice or obligation Page 36 of 3...

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