Refrigeration and Air Conditioning Controls User s manual ClimaTech Environmental Controller ADAP-KOOL REFRIGERATION AND AIR CONDITIONING
Table of Contents Introduction... 3 Models and part numbers... 3 Network layout... 4-5 Installing a ClimaTECH 65... 6-7 Mounting and connections Installing a ClimaTECH 1024... 8-10 Mounting and connections Configuring a ClimaTECH controller in an AKC 55 System... 11-23 Fan configuration... 11-14 Cooling configuration... 14 Heating... 15-17 Heat reclaim... 15 Auxiliary heat... 16-17 Dehumidification... 17 Economizer... 18 Alarms... 19-20 Schedules... 20 Board & Points... 21 Sensor inputs (analog inputs)... 22 On-off inputs (digital inputs)... 22 Address and Init... 23 An Introduction to the ClimaTECH handheld remote... 24-26 2
Introduction Models The ClimaTECH 65 and ClimaTECH 1024 are stand-alone HVAC controllers that can also be used (with a communications bridge) in an AKC 55 supermarket control system. ClimaTECH controllers use Echelon communications with FTT-10 protocol. There are two ClimaTECH models, with capacities and dimensions as follows: ClimaTECH 65 ClimaTECH 1024 Dimensions: 8.25 x 3.22 x 1.76 inches Dimensions: 19.5 x 5.09 x 2.85 inches 5 digital outputs 24 digital outputs 6 universal inputs 10 universal inputs 1 analog output, 0-10 V 1 analog output, 0-10 V Power required: 24 Vac @ 250 ma Power required: Relay output rating: 0.5 A Up to 12 outputs: 24 Vac @ 500 ma Up to 24 outputs: 24 Vac @ 1 A Relay output rating: 1.5 A Part numbers are as follows: C30010400 ClimaTECH 65 with analog output C30010401 ClimaTECH 65 without analog output C30011400 ClimaTECH 65 in waterproof enclosure C30012400 ClimaTECH 1024 in waterproof enclosure C30012401 ClimaTECH 1024 in waterproof enclosure with analog output C30013400 ClimaTECH 1024 in metal enclosure C30013401 ClimaTECH 1024 in metal enclosure with analog output Because Echelon communications to and from an AKC 55 use the TP78 protocol, ClimaTECH controllers in an AKC 55 I/O network require that a TP78 to FTT-10 bridge be installed on one of the main I/O runs from the AKC 55. Connect the bridge as you would any other node on an I/O run. The bridge need not be connected directly to AKC 55 I/O terminals. Cabling requirements For TP78 cabling from the 3AKC 55 to the bridge, use 2-conductor 18 AWG shielded
. twisted stranded cable. Connect theshield at the AKC 55 only. For FTT-10 cabling from the bridge to and between the ClimaTECH controllers, use 2-conductor 16 AWG unshielded twisted stranded cable (plenum, Belden 85102; nonplenum: Belden 8471). Network layout Downstream from the bridge, a network of ClimaTECH controllers can be connected in several ways. In following the examples that follow, be sure to observe the termination requirements. Omission or improper placement of termination resistors will result in faulty network communications. Maximum total length of network cabling is 1600 feet. 4
The sections of this manual that follow will cover mounting and wiring of the ClimaTECH 65 and ClimaTECH 1024 controllers individually. A final section will provide information on configuring the AKC 55 for use with these controllers. 5
ClimaTECH 65 Mounting Mount the unit on a flat surface using 2 appropriate screws. Network connections The ClimaTECH 65 uses Echelon communications in an FTT-10 network. Other ClimaTECH or FTT-10 devices can be connected in daisy-chain fashion ddirectly to the ClimaTECH 65 s network terminals (located below the sensor power terminals on the left side of the controller. The AKC 55 I/O network uses Echelong communications in a TP-78 network. To connect the ClimaTECH 65 to the AKC 55 I/O network, an FTT-10 to TP-78 bridge is required. Connect the bridge according to the instructions received with it. Use 2-conductor 16AWG unshielded twisted pair cable (Belden #85102or equivalent) for plenum applications; for non-plenum applications, use Belden #8471 or equivalent. Sensor connections 6
Humidity sensor Connection Opitonal Analog Output Connection The controller s sensor inputs will accept TP-1 and TP-2 temperature sensors, relative humidity sensors, and will sense dry contact closures. Connect the sensors on the left side of the controller at the terminals indicated on the label, as shown in the next drawing. Note, in the drawing above, that excitation voltage for a humidity sensor is taken directly frm the +12 Vdc supply terminal. If the analog output option is present, connections are made on the right side of the controller where indicated by the label. Relay output connections 1.) Turn OFF power to the HVAC control circuit for the devices to be connected to the ClimaTECH controller. 2.) Break the 24 Vac supply to the control circuit and connect it to the Relay Com terminal on the ClimaTECH controller. 3.) One by one, connect the HVAC devices control circuits to the Relay Out terminals on the ClimaTECH controller. 4.) Connect 24 Vac to the ClimaTECH s power terminals. 5.) Restore power to the HVAC control circuit. 6.) Proceed with programming of the AKC 55 as described in Section 2. 7
ClimaTECH 1024 Mounting Mount the unit on a flat surface using 2 appropriate screws. Network connections The ClimaTECH 1024 uses Echelon communications in an FTT-10 network. Other ClimaTECH or FTT-10 devices can be connected in daisy-chain fashion ddirectly to the ClimaTECH 1024 s network terminals (a connector located at the left of the controller as indicated in the drawing below. The AKC 55 I/O network uses Echelong communications in a TP-78 network. To connect the ClimaTECH 65 to the AKC 55 I/O network, an FTT-10 to TP-78 bridge is required. Connect the bridge according to the instructions received with it. Use 2-conductor 16AWG unshielded twisted pair cable (Belden #85102or equivalent) for plenum applications; for non-plenum applications, use Belden #8471 or equivalent. S 8
Sensor connections Humidity sensor Connection Opitonal Analog Output Connection The controller s sensor inputs will accept TP-1 and TP-2 temperature sensors, relative humidity sensors, and will sense dry contact closures. Connect the sensors to the terminals at the bottom of the lower circuit board as shown in the drawing above. Note, in the drawing above, that excitation voltage for a humidity sensor is taken directly frm the +12 Vdc supply terminal (second from the right, labeled on the printed circuit board). If the analog output option is present, connections are made to terminals on the daughterboasrd mounted above the main (lower) printed circuit board on the right side of the controller, as shown in the drawing on the next page. 9
Relay output connections 1.) Turn OFF power to the HVAC control circuit for the devices to be connected to the ClimaTECH controller. 2.) Break the 24 Vac supply to the control circuit and connect it to each of the Relay Com terminals on the ClimaTECH controller. 3.) One by one, connect the HVAC devices control circuits to the Relay Out terminals on the ClimaTECH controller, using normally open (NO) or normally closed (NC) contacts as required. 4.) Connect 24 Vac to the ClimaTECH s power terminals, as shown in the drawing below. 5.) Restore power to the HVAC control circuit. 6.) Proceed with programming of the AKC 55 as described in Section 2. 10
Configuring a ClimaTECH controller in an AKC 55 System [Note: In the discussion that follows, familiarity with navigation in the AKC 55 is assumed. If you need a refresher, refer to the section Authorization and Navigation on pages 13 and 14. Get your authorization code from the system owner s representative.] To begin configuration of AKC 55 software for a ClimaTECH unit select Configuration from the AKC 55 Main Menu, then HVAC. Add one to the number of units if this is a new configuration (and select whether a CT 65 or a CT 1024), or select a previously configured unit. Then select <Setup>. The ClimaTECH configuration menu appears: Fan configuration Fan configuration is somewhat different for fixed-speed fans than for variable speed fans. We will discuss fixed speed configuration first, since this is the default for initial configuration. A discussion of variable speed configuration will follow. Select Fan from the ClimaTECH configuration menu and (for initial configuration or for an earlier ClimaTECH configuration with a fixed fan) this screen appears: 11
Fixed Speed The fields and their contents are as follows: Fan type? Fixed Speed Fans are single or 2-speed fixed. Variable VO Fans have an adjustable frequency drive. Airflow control? Continuous Fan runs continuously at all times. On demand Fan runs only when heating or cooling is on. It will run for 5 minutes after the last stage is turned off. High Speed Fan Assignment For each of the listed devices, enter the stage at which you want a 2- speed fan to change to high speed. Shutdown on fire alarm? Yes Functional only if fire alarm has dry contacts wired to a digital input on the ClimaTECH controller or is being broadcast by the AKC 55.The fans will be shut down upon the occurrence of a fire alarm. Monitor phase loss? No Phase loss to the HVAC unit is not Yes Which phase loss monitor? Shutdown on phase loss? monitored by ClimaTECH. Phase loss to the HVAC unit is monitored by ClimaTECH. [appears only if the answer to the previous question is Yes] Select the phase loss digital input to monitor from the list box (the input must be configured in Board & Points). [appears only if Yes is answered to the Monitor phase loss question. 12
If Variable VO is selected in the first question, the configuration is somewhat different. Variable Speed With Fan type set to Variable VO, the questions change as follows: Fan type? Variable VO Fans have an adjustable frequency drive. Airflow control? Continuous [definition please] [Discussion of fan assignments] Min fan speed? Heat + Dehumid fan speed? Shutdown on fire alarm? Yes The minimum percentage of maximum speed at which the fan will be allowed to run. The fan speed when the HVAC unit is running in dehumidification mode. Yes Phase loss to the HVAC unit is monitored by ClimaTECH. Functional only if fire alarm has dry contacts wired to a digital input on the ClimaTECH controller or is being broadcast by the AKC 55.The fans will be shut down upon the occurrence of a fire alarm. Monitor phase loss? No Phase loss to the HVAC unit is not Yes Which phase loss monitor? monitored by ClimaTECH. Phase loss to the HVAC unit is monitored by ClimaTECH. [appears only if the answer to the previous question is Yes] Select the phase loss digital input to monitor 13
Shutdown on phase loss? from the list box (the input must be configured in Board & Points). [appears only if Yes is answered to the Monitor phase loss question. Cooling For cooling configuration, select the Cooling from the ClimaTECH configuration menu. Here s the screen: Num of cooling stages? Occupied setpoint? Unoccupied setpoint? Lockout below ambient? Delay between stages? (0-6) The number of cooling stages. (0.0-150.0 ) The cooling setpoint during operating hours as configured in the Store Info screen. (0.0-150 ) The setpoint outside of occupied hours as configured in the Store Info screen. (0.0-150 ) The outside ambient temperature below which cooling will not be allowed to operate. (0-99) The number of minutes after the start of a stage before the next stage can start. Also, the minimum on time for every stage. 14
Heating: page 1, Heat reclaim Select Heating from the ClimaTECH configuration menu, and thisscreen appears: Num of heat rclm stages? Occupied setpoint? Unoccupied setpoint? Lockout above ambient? Delay between stages? (0 to4) The number of heat reclaim stages. (-40.0 to 150.0, but constrained to be one degree higher than the setpoint for auxiliary heat) The heat reclaim setpoint during operating hours as configured in the Store Info screen. (-40.0 to 150.0, but constrained to be one degree higher than the setpoint for auxiliary heat) The setpoint outside of occupied hours as configured in the Store Info screen. (-40.0 to 150.0 ) The outside ambient temperature above which heat reclaim will not be allowed to operate. (0 to99) The number of minutes after the start of a stage before the next stage can start. Also, the minimum on time for every stage. 15
Heating: page 1, Auxiliary heat Page down for auxiliary heat settings: Num of aux heat stages? (0 to 4) The number of auxiliary heat stages. Occupied setpoint? (-40.0 to 150..0, but constrained to be one degree lower that the setpoint for heat reclaim) The auxiliary heat during operating hours as configured in the Store Info screen. Unoccupied setpoint? (-40.0 to 150.0 ) The setpoint outside of occupied hours as configured in the Store Info screen. Lockout above ambient? (-4.00 to 150.0 ) The outside ambient temperature above which auxiliary heat will not be allowed to operate. Delay between stages? (0 to 99) The number of minutes after the start of a stage before the next stage can start. Also, the minimum on time for every stage. Analog gas valve? Yes Analog valve is present. No No analog valve is present. Temperature difference? (-40.0 to 150.0 ) (Only if Analog gas valve = Yes) The difference between Supply air temperature and zone temperature. It is used to calculate the percentage of valve opening. 16
Min valve opening? (0 to 100%) Valve delay? (0 to 99) The number of seconds after the enable relay turns on before the analog valve can open. Dehumidification Select dehumidification from the ClimateTECH configuration menu: Num of stages? (0 to 6) The number of dehumidification stages.. Occupied setpoint? (-40.0 to 150.0 ) Applies during operating hours as configured in the Store Info screen. Unoccupied setpoint? (-40 to 150.0 ) Applies outside of occupied hours as configured in the Store Info screen. Lockout below ambient? (0 to 150.0 ) The outside ambient temperature below which dehumidification will not be allowed to operate. Delay between stages? (0 to 99) The number of minutes after the start of a stalso, the minimum on time for every stage.age before the next stage can start. Aux hea / dehumid lockout? Yes Aux heat will be locked out when dehumidification is running. No Aux heat will be allowed when dehumidification is running. 17
Economizer Select Economizer from the ClimaTECH configuration menu: Economizer? Yes An economizer is present and will be controlled by ClimaTECH to supply free cooling (subject to setpointsbelow) based on zone temperature. No No economizer is controlled by ClimaTECH. Outside ambient target? (-40.0 to 150.0 ) The outside ambient target that ClimaTECH, through processes mysterious to mere man, will seek to provide. At least that s what it sounds like. xxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx Outside dewpoint target? (-40.0 to 150.0 ) dittoxxxx x xxxxxxxxxxx xxxxxxxxxxxxx 18
Alarms Select Alarms from the ClimaTECH configuration menu: Alarm delay? Six types of alarms follow. Each can have one of five actions: Disabled Log Only Normal Critical (0 to 100 min) The amount of time that must elapse once an alarm condition exists before an alarm is generated. The alarm settings remain configured but alarms will not be generated. Alarms can be reactivated with settings previously configured by selecting Log Only, Normal, or Critical. Alarms will be logged, but will not be routed to local or remote locations (as specified in the alarm routing screen). Alarms will be generated once and routed to all active locations specified in the alarm routing screen. Alarms will be generated and routed to all active locations specified in the alarm routing screen. Once a critical alarm trips, it will be sent out repeatedly to active locations at the interval specified for critical alarms in its AKC 55 until either clear or acknowledged. An alarm is clear when its sensor value returns to a 19
<Delete> non-alarm level. The alarm isdisabled and the setting (in this case the temperature level only) returned to the factory default (50 ) High zone temp? Heat reclaim flush startstore information List I&T setting Here s typeindents & tabs with setup and second line indent set for lists. Use this for all lists with terms or choices at (6, 2.75). The HVAC fire alarm is based on a fire alarm interface directly to the host AKC 55. Schedules Select Schedule from the ClimaTECH configuration menu: From 0 to 8 holidays can be scheduled in addition to the seven weekdays. Each day can have two schedules, standard or relative. Standard schedules have On and Off times of day specified in this screen. Relative schedules have an On time that is offset from the beginning of operating hours as configured in the Store Info screen. For example an On time of +01:00 bring the unit on 1 hour after the beginning of operating hours. An On time of -01:00 would bring the unit on 1 hour prior to the beginning of operating hours. In a similar manner, Off times in relative schedules are relative to the end of operating hours. No adjustment is necessary to relative schedules when store operating hours change. Holiday schedules appear on the next and subsequent pages. 20
Board & Points Relay Outputs (digital outputs) After selecting Board & Points from the ClimaTECH configuration menu, the first of four screens appears, each of these screens is represented by an icon. The four icons appear at the bottom of each screen in the series. The icons symbolize, from left to right, Relay Outputs (digital outputs), Sensor Inputs (analog inputs), On-Off Inputs (digital inputs), and ClimaTECH address and initialization. For each stage of each device, enter the ClimaTECH controller relay number to which the device is wired. 21
Sensor Inputs (analog inputs) The second icon produces the Sensor Input (analog input) screen. On-Off Inputs (digital inputs) The third icon calls up the On-Off input (digital input) screen: 22
Address and Init The last icon brings up the ClimaTECH Address and Init screen: 1.) Enter a name for the unit being controlled. 2.) Assign a unique addressfor the ClimaTECH controller, from 1 to 99. 3.) Select Locate and press ENTER. You have 10 minutes to go to the ClimaTECH controller and insert the location device intothe jack on the outside of the unit (this is the jack that is usually used for the handheld unit. 4.) Press the button on the location tool. Return to the AKC 55. 5.) Select Init and press ENTER. The initialization procedure will take a few seconds. 23
Using the Handheld Remote Handheld main menu The main menu screen on the handheld remote shows 4 choices. The last line gives the software version (in our example below, CYT010103) and the address(in the example, subnet 13, node 7. ClimaTECH 1> Status 3> TODs 2> Setpts 4> Setup CT010103 13 07 Use the right, left, up, and down arrows to move he cursor. ENTER will select the item where the cursor is resting. We will begin by selecting Status, where the cursor rests by default when the remote is first plugged in, or when the ESC key is pressed (sometimes repeatedly). First, there is general temperature information: 1> Status Climatech 1> Status Mode-HEAT Spc -38f IDP n/a zone temp, inside dewpoint OA 56f ODP n/a outside air temp, outside dewpoint DCH n/a RTN n/a discharge (supply) air temp, return air temp Next, for each device, the stages on are shown with the setpoint and lockout: StagesOn...Spt..LKO. stages, setpoint, lockout FN 100% fan EC * economizer AC -- 72f 03f air-con ditioning DH -- 00f 00f dehumidification HR 12 70f 90f heat reclaim AH 12 68f 90f auxiliary heat Output overrides are shown next by stages:...output Ovrds... 1 2 3 4 5 6 FN N N Ec * AC N N * * * * DH N N * * * * HR N N * * * * AH N N * * * * An asterisk means the stage is not configured. The states of configured stages (which can be changed) are: N normal automatic operation manually OFF. manually ON 24
1> Status (cont d) Inputs are listed next with a changeable offset where appropriate and the actual value. Inputs can be TP1 or TP2 temperature sensors, 0-10V inputs, or digital inputs. Inpts...Offst.Act. Zone1 sc +02f -38f zone 1 air temperature Zone2 sc * * zone 2 air temperature Zone3 sc * * zone 3 air temperature Zone4 sc * * zone 4 air temperature Alrm1 * alarm 1 Alrm2 * alarm 2 Alrm3 * alarm 3 Alrm4 * alarm 4 Dch1 * * discharge (supply air) 1 Dch2 * * discharge (supply air) 2 Rtn * * return air OA +00f 56f discharge (supply air) 2 DP-SPC * * zone dewpoint DP-OA * * outside air dewpoint AirFlow * Ph Loss * NgtSBOvrd * Inv flt * sc means space control. sm me An asterisk means that the stage is not configured. 2> Setpoints Setpoints (all are changeable) are found by selecting 2> from the main handheld menu. The setpoints are presented in groups: General setpoints Variable speed fan setpoints Analog gas valve setpoints HVAC group information is appended General setpoints: : Climatech 2> Setpts Sys..Day.Ngt.LkO.Dly System, Day, Night Lockout, Interstage delay AC 72f 70f 03f 03m air-conditioning settings DH 00f 00f 0f 01m heat settings HR 70f 68f 90f 01m heat reclaim settings Econ OA 00f DP 00f economizer settings Alrm Hi 85f Lo 40f alarm limits Alrm delay 15m alarm delay HR flush dur 10m heat reclaim flush duration Hi speed fan at AC2 DH2 HR2 AH0 stage when 2-speed fan switches to high speed 25
2> Setpoints (cont d) Variable speed fan Analog gas valve: HVAC groups 3> TODs (Schedules)...VSpd.Fan.Setpts.. Type Dch Range AC 030f 10f HR/AH 020f 10f DH 075f 10f Min Spd 050% DH&HT Spd 050%..Analog.Gas.Valve.. Temp diff 0f temperature differential Min opening 000% minimum opening percentage Valve delay 00s...HVAC.Groups... Spc group num 00 IDP group num 00 Select 3> TODs from the menu to access the schedules. From 0 to 8 holidays can be scheduled in addition to the seven weekdays. Each day can have two schedules, standard or relative. ClimaTECH 3> TODs Sun 06:22 Occupied..On...Off. Sun1 00:00 00:00 Sun2 00:00 00:00 Schedules are evaluated by the AKC 55 and emperature differential and continuing with two schedules for each day of the week through Saturday. There is one additional line: HR flush time 01:40 which is the time for flushing the heat reclaim coils to clear them of oil. 26
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Danfoss Inc. Air-Conditioning & Refrigeration Division 7941 Corporate Drive Baltimore, MD 21236-4925 Telephone: 410-931-8250 Fax: 410-931-8256 Direct order fax: 800-948-3123 Danfoss shall not be responsible for any errors in catalogs, brochures, or other printed material. Danfoss reserves the right to alter its products at any time without notice, provided that alterations to products already on order shall not require material changes in specifications previously agreed upon by Danfoss and the Purchaser. ClimaTECH All trademarks in HVAC this material Controllers are property in AKC of the respective 55 Systems companies. Danfoss 08/02.1 and the Danfoss logotype are trademarks 084R9952 of Danfoss A/S. All rights reserved. RS.8C.L1.22 Copyright 2001 Danfoss Inc. 084R9952 RS.8C.L1.22 28