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Barco R5976476/03 Computer Accessories User Manual

1. PDNTT WOLLOSH OLCISCINZHIAIANOO TH NVd TO WANININ 476 WOLLOd LONA OL LINN JO dOL WOY IAICYALINTIW 7 VAICYAUNIIAI TU 1 LINN iE 6 4 OZ 5 CIHJCINHIAANOO H H S NVA PDNINdrTL 1 PONTT HO JO WOLLOSH Manual 2100 549G 14 of 59 Page FIGURE 7B 3 RISER APPLICATION g 686c SII 5 4 THD H NOLIV TIVLSNI WNOLLOdH WOWINIAI 4 INOLLOGS LONA OL LIN dOL WAINININ t7 H 5 1 x WANININ E LINN iE 6 4 CISCINZIAINOOH H S NVA ONINYNLL LOCXd GAMddNsS cr r3l JOO WOLLOSH mm i fo Sr A 59 G a FIGURE 7C 6 RISER APPLICATION 886c SIN NOLIV TIV LSNI WOIWINIAL 8 6 9 YO AOWOLLOE OLCG3CONZAIAOO H SONN HNVH TO WAWININ
2. aun e epis 1 yoa up gt 1 Bel emm JIV 11 1 1 Agcns x OZ e 2 o 00 SNOISN MI LINN HTDH 98 ms N E gt SHIPPING DAMAGE Upon receipt of equipment the unit should be checked for external signs of shipping damage The skid must remain attached until the unit is ready for installation If damage is found the receiving party must contact the last carrier immediately preferably in writing requesting inspection by the carrier s agent UNIT REMOVAL FROM SKID A WARNING This unit is heavy and requires more than one person to handle during installation and removal from the skid Extreme caution must be taken to prevent injury to personnel and damage to the unit Use appropriate safety equipment including gloves when handling Failure to do so may result in serious injury A forklift or a lift rated for the load Figure 2A is required to lift the unit off from the skid This unit is top heavy and should never be tipped while moving it The I TEC is designed to be lifted off the skid f
3. 16 Figure 33 Control Connector Motor Half 57 Figure 8 Supply Duct Connections 17 Figure 9 Filter Location 17 Tables Figure 10 Drain Locations 18 Table 1 Factory Built In Electric Heat Table 5 Figures 11A amp 11B Unit 19 amp 20 Table 1A Indoor Blower Performance 5 Figure 12 Component Location 21 Table 2 Elec Specifications sn aa 6 Figure 13 Basic Heat Pump w No Vent Pkg GG 23 Center of Gravity Reference Table 11 Figure 14 HP w CRV without CO Control 24 n E Voltage Range Figure 15 HP with CRV amp Control MOTTA 25 de e a ermostats eee Figure 16 HP with w o CO 26 ow Voltage Connections ir DDC Control 22 Figure 17 HP with amp Control 27 WAPP pala Figure 18 HP w ERV amp Control Fully Mod 28 Figure 19 HP w Comb CRV amp DB Econ CN Vent 29 Table 5 Troubleshooting eet 51 Figure 20 Defrost Cycle 33 Table6 Temp vs Resistance of Temp Sensor 52 Figure 21 CRV Motor Speed CFM Configuration 35 Table 7 T
4. WAWINIAL 1 4 LINN 6 4 IN MMANO S NVA ONINEALL lt 1913 9 lt eo a 8 gt DUCT WORK Any heat pump is more critical of proper operating charge and an adequate duct system than a straight air conditioning unit duct work must be properly sized for the design airflow requirement of the equipment Air Conditioning Contractors of America ACCA is an excellent guide to proper sizing All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve energy and prevent condensation or moisture damage When duct runs through unheated spaces it should be insulated with a minimum of one inch of insulation Use insulation with a vapor barrier on the outside of the insulation Flexible joints should be used to connect the duct work to the equipment in order to keep the noise transmission to a minimum The I TEC series heat pump has provision to attach a supply air duct to the top of the unit Duct connection size is 20 inches x 24 inches The flanges are shipped flat and must be bent upward using sheet metal flanging pliers The duct work is field supplied See Figure 8 for suggested attachment method Make sure to seal the slots in the bend up flange at the time of securing your ductwork to the flange This can be accomplished w
5. fast blinks which indicate the second digit For example a Flow Index of 23 would be two long blinks followed by 3 fast blinks of the GREEN STATUS LIGHT 3 On exhaust Motor Control Board observing GREEN STATUS LIGHT turn manual adjust potentiometer with a small phillips head screwdriver CCW to increase FLOW INDEX or CW to reduce FLOW INDEX to match desired setting Same GREEN STATUS LIGHT blink refer to Step 5 FIGURE 25B ERV MODULATING MODE JUMPER PIN ON P TERMINAL Vdc Signal from CO2 Control uy o m After determining the air volume rates needed for the intended application Maximum amp Minimum the table immediately to the left will allow for you to program your CO2 control output voltages in correlation to the CO2 levels you wish to control when Bard Part 8403 067 CO2 Control is applied 2 57 7 Manual 2100 549G Page 43 of 59 FIGURE 26 VENTILATION AIRFLOW DIAGRAM Supply Air SUPPLY BLOWER Return Air Outdoor Air 23 VENT INTAKE BLOWER Indoor Air VENT EXHAUST BLOWER MIS 3024 Manual 2100 549G Page 440159 FIGURE 27 55 ERV INTAKE BLOWER NOTE ERV EXHAUST BLOWER 15 BEHIND INTAKE BLOWER ERVCASSETTE ASSEMBLIES MIS 3025 REMOVE 5 SCREWS ERV DOOR TO ACCESS ERV COMPONENT
6. Check for low airflow too much latent capacity Check for undercharged condition Check and plug leaks in return ducts cabinet Comfort Check Check proper airflow settings Low static pressure for lowest noise Set low continuous fan CFM Use humidistat and 2 speed cooling units Use zoning controls designed for ECM that regulate CFM Thermostat in bad location 2100 549G 55 of 59 Manual Page TROUBLESHOOTING INDOOR ECM BLOWER MOTORS Cont d Replacing Control Module To replace the control module for the GE variable speed indoor blower motor you need to take the following steps 1 You MUST have the correct replacement module The controls are factory programmed for specific operating modes Even though they look alike different modules may have completely different functionality USING THE WRONG CONTROL MODULE VOIDS ALL PRODUCT WARRANTIES AND MAY PRODUCE UNEXPECTED RESULTS 2 Begin by removing AC power from the unit being serviced DO NOT WORK ON THE MOTOR WITH AC POWER APPLIED To avoid electric shock from the motor s capacitors disconnect power and wait at least 5 minutes before opening motor 3 It is not necessary to remove the motor from the blower assembly nor the blower assembly from the unit Unplug the two cable connectors to the motor control assembly There are latches on each connector DO NOT PULL ON THE WIRES The plugs remove easily when properly released 4 Locate the
7. LO 1 RED 1961 7554 m 15 3271 Manual 2100 5490 39 of 59 ENERGY RECOVERY VENTILATOR SYSTEM GENERAL DESCRIPTION The I TEC Energy Recovery Ventilator ERV was designed to provide energy efficient cost effective ventilation to meet I A Q Indoor Air Quality requirements while still maintaining good indoor comfort and humidity control for a variety of applications such as schools classrooms lounges conference rooms and others It provides a constant supply of fresh air for control of airborne pollutants including CO2 smoke radon formaldehyde excess moisture virus and bacteria The ERV incorporates patented rotary heat exchanger technology to remove both heat and moisture The package consists of unique rotary Energy Recovery Cassettes that can be easily removed for cleaning or maintenance It has two 15 inch diameter heat transfer wheels for efficient heat transfer The heat transfer wheels use a permanently bonded dry dessicant coating for total heat recovery The I TEC is also provided with filters to reduce the required service needed and to extend the life of the heat recovery wheels The exhaust air blower is protected by disposable filters and the intake air blower is protected by washable filters Both are accessible without the need for tools Ventilation is accomplished with 2 blower motor assemblies for maximum ventilation at low sound levels The intake and exhaust
8. 9 110 11 12 13 14 15 16 1112113 141151 6 1171 8 POWER CONNECTOR PWB HEADER AMP 1 350945 0 Jumper Pin 1 to Pin 2 for 120VAC Line Input Only Chassis Ground CXOOO0 0 Suggested mating connector Housing AMP 350809 1 Contact AMP 350537 1 WARNING Applying 240VAC line input with PIN 1 to PIN 2 jumper in place will permanently damage unit EU MIS 2839 REFRIGERANT CHARGE POWER CONNECTOR This unit was charged at the factory with the quantity of MOTOR HALF 11233375 d BLADE SETTING DIMENSIONS The position of the fan blade should be flush with the leaving face of the orifice plate Check to make sure the blades do not extend beyond the rear casing of the unit Spin the blade by hand to make sure it does not hit the ring refrigerant listed on the serial plate AHRI capacity and efficiency ratings were determined by testing with this refrigerant charge quantity The following pressure tables show nominal pressures and temperatures for the units Since many installation specific situations can affect the pressure readings this information should only be used by certified technicians as a guide for evaluating proper system performanc
9. Operating the CRV during unoccupied periods result in a build up of excess moisture in the structure Manual 2100 549G Page 340159 RECOMMENDED CONTROL SEQUENCES Several possible scenarios listed below 1 Usea programmable electronic thermostat with auxiliary terminal to control the CRV based on daily programmed occupance periods Bard markets and recommends Bard Part 8403 060 programmable electronic thermostat 2 Use Bard CompleteStat that incorporates temperature humidity and occupancy control with learning capability into a single device No programming required 3 Usea DDC control system to control the CRV based upon a room occupancy schedule to control the CRV 4 Tie the operation of into the light switch The lights in a room are usually on only when occupied 5 Usea manual timer that the occupants turn to energize the CRV for a specific number of hours 6 Usea programmable mechanical timer to energize the CRV and indoor blower during occupied periods of the day NOTE The ventilation package comes with a blower interlock function but is disabled when it is shipped from the factory in case you do not utilize a thermostat with an occupancy output or a occupancy sensor and must tie terminal to terminal to drive the ventilation package If you do have a thermostat or control that does drive occupancy output you will need to remove the tape from the oran
10. Ventilation is accomplished with 2 blower motor assemblies for maximum ventilation at low sound levels The intake and exhaust blowers are programmed independently and are balanced to maintain a slight positive pressurization in accordance to ASHRAE 62 1 Standard The Ventilation Package is also provided with filters to reduce the required service needed and to further improve the The exhaust air blowers are protected by disposable filters and the intake air blowers are protected by washable filters Both are accessible without the need for tools CONTROL WIRING Refer to Low Voltage Connection Figure 19 Reference Figure 23 for Control Sequence of Operation Operating the I TEC CRV during unoccupied periods can result in a build up of excess moisture in the structure Open disconnect to shut all power OFF before doing this Failure to do so could result in injury or death due to electrical shock SETTING THE VENTILATION CFM LEVELS The I TEC CRV has four 4 pre set levels of ventilation available These are 300 375 450 and 525 CFM of ventilation air This ventilation package is shipped from the factory set on the 375 CFM ventilation level while the Economizer portion is set on the 525 CFM ventilation level To change between these four different levels of provided ventilation CFM refer to Figure 24 to look up the corresponding CFM needed for the intake and exhaust blowers to meet
11. COL COH Relay on set point Sets the CO concentration which the optional relay is energized Low limit 0 PPM Factory setting 1000 PPM High limit 2000 5000 PPM depending on model Relay off set point Sets the CO concentration which the optional relay is de energized Setting value lower than RON provides direct action for detecting high concentrations of CO Setting value higher than RON provides indirect action for detecting low concentrations of CAD or CV on the LCD display will be lit to indicate when the relay is energized Low limit 0 PPM Factory setting 950 PPM High limit 2000 5000 PPM depending on model Display configuration Determines the LCD display configuration during normal operation The LCD display can indicate the CO concentration and the temperature the CO concentration only or the temperature only The factory default is to display both the temperature and the concentration 1 and temperature CO concentration only T Temperature only TOL TOH BAR Units selection Temperature and barometric pressure measurements can be displayed in US engineering units or SI engineering units The factory default is to display US engineering units US units F for temperature and in Hg for barometeric pressure SI units C for temperature and hPa for barometric pressure CO low output range Sets the CO concentration for the lowest
12. thermostat signal powers 1 terminal on unit low voltage terminal strip through NC contacts of relay R2 High Ambient Relay On call from CompleteStat for first second and third stage cooling YO thermostat signal powers vent blower motors at Economizer Speed Airflow black 525 CFM through NC contacts of Relay Dehum Relay e Y1 thermostat signal powers 1 terminal on unit low voltage terminal strip through NC contacts of relay R2 High Ambient Relay Y2 thermostat signal powers Y2 terminal on unit low voltage terminal strip through NC contacts of relay R2 High Ambient Relay FIGURE 23 ECONOMIZER CONTROL CIRCUIT UNIT LOW VOLTAGE THERMOSTAT TERMINAL SIGNALS STRIP T OXO If outdoor temperature is above outdoor thermostat setpoint On call from CompleteStat for first stage cooling e YO thermostat signal powers relay coil R2 R2 relay then closes NO contact between and 1 at low voltage terminal strip engaging stage 1 mechanical cooling NC contacts of relay R that connects thermostat 1 to on low voltage terminal strip is opened to eliminate feedback On call from CompleteStat for first and second stage cooling e YO thermostat signal powers relay coil R2 R2 relay then closes NO contact between R and 1 at low voltage termi
13. 1 31 45 8 10 06 1 49 60 8 10 09 230 208 3 1 58 60 6 10 15 1 58 60 6 10 18 1 or 2 63 70 6 8 31 54 45 60 8 6 10 10 160H1 C0Z 1 5 20 12 12 06 1 25 30 10 10 C09 1 29 30 10 10 15 1 29 30 10 10 C18 1 29 30 10 10 These Minimum Circuit Ampacity values are to be used for sizing the field power conductors Refer to the National Electric Code latest revision article 310 for power conductor sizing Caution When more than one field power conductor circuit is run through one conduit the conductors must be derated Pay special Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors Based on 75 copper wire All wiring must conform to the National Electrical Code and all local codes Maximum KW that can operate with heat pump on is 10KW for 1 Phase and 9KW for 3 Phase Represents Electric Heat Only Electrical Control Circuit will lockout Heat Pump Operation Manual Page 2100 549G 6 of 59 attention to note 8 of table 310 regarding Ampacity Adjustment Factors when more than three conductors are in a raceway LT6Z SI te SPIS MAPY uu 32014 AOUUSS SSIOH YPLOA epis SSIOH YIPHOY 34014 4 4 4 4 4 v uomes OU anes 5 n 5 M 4 2 d i ux ur 4 7 v M AN
14. 30 717 30 717 23 038 30 717 30 717 23 038 30 717 10 0 34 130 25 598 34 130 25 598 34 130 25 598 34 130 25 598 15 0 51 195 38 396 51 195 38 396 51 195 51 195 38 396 51 195 38 396 51 195 51 195 38 396 18 0 61 434 46 076 61 434 20 0 68 260 51 195 68 260 51 195 TABLE 1A INDOOR BLOWER PERFORMANCE Continuous Rated 204 Rated 1st 5 9 KW 13 5 18 Rated ESP Stage CFM Stage CFM CFM KW CFM NM Motor will deliver consistent through voltage supply range with no deterioration Continuous fan is the total air being circulated during continuous fan mode G Will operate at rated Full Load Airflow when operating with Heat Pump amp Will occur automatically with a call for W3 or Emergency Heat signal from the thermostat Heat Pump Operation is terminated at this condition Manual 2100 549G Page 5 of 59 TABLE 2 ELECTRICALSPECIFICATIONS Single Circuit Dual Circuit Rated No Field j Minimum Maximum Field Volts Hertz Power Maximum Fiat Ground Circuit External Fuse Power Model 22 Circuit External Fuse Power Wire and Phase Circuits Ampaciy orCkt Wire Size Wire Ampacity Ckt Breaker Wire Size i Ck B 130H1 A0Z 1 22 35 8 10 05 230 208 1 1 48 50 8 10 10 1 or 2 74 80 4 8 48 30 50 3
15. Cut insulation away to expose the hole A drain trap can now be installed inside of the cabinet and the drain hose routed directly through the floor Once the I TEC is installed the rear drains exiting the condenser section can be easily serviced with removal of the pre painted metal sides lift off doors remove four 4 screws to remove side If side access is not available the drain lines and trap can be serviced by removing either one of the drain access panels on the rear of the unit in the ventialtion package area See Figure 10 WITH NO VENT OPTION To access the drain access panels in the rear of this section simply remove the front door cover from the box and the plates are located in the rear of the box Manual 2100 549G Page 180159 WITH COMMERCIAL ROOM VENTILATOR 1 Open hinged front doors 2 Disconnect unit power to eliminate shock hazard 3 Remove front cover door of CRV vent package Can leave filter access panels in place 4 Unplug wires coming in on left side from upper unit section 5 Unplug two wire harness from front intake blower 6 Remove two 2 screws securing front intake blower and slide blower out of unit 7 Remove four 4 screws that retian the partition behind beneath intake blower removed in Step 6 8 Rear drain access panels are now visible on both right hand and left hand sides in rear of box WITH ENERGY RECOVERY VENTILATOR To access the rear drain access panels o
16. Locate two 0 10Vdc Motor Control Boards in control panel See Figure 28 5 Pull jumper pins from terminals and move to terminals See Figure 28 6 Connect 0 10Vdc output from control to Terminal 3 along with pink wire and connect to Terminal 4 along with purple wire of unit low voltage terminal strip 7 Follow the directions supplied with the CO2 control to configure the control appropriately Manual 2100 549G Page 41 of 59 PERFORMANCE AND APPLICATION DATA SUMMER COOLING PERFORMANCE INDOOR DESIGN CONDITIONS 75 DB 62 WB Ambient VENTILATION RATE 450 VENTILATION RATE 375 VENTILATION RATE 300 OD 65 EFFICIENCY 66 EFFICIENCY 67 EFFICIENCY DB B VLL HRT HRS VLL HRT HRS HRL VLL HRT HRS 5 W 10 RI 75 6884 9477 4475 11805 8018 3786 14310 9720 4590 9587 6512 3075 70 0 9477 0 8018 8018 0 9720 9720 0 6512 6512 0 65 0 9477 0 8018 8018 0 9720 9720 0 6512 6512 0 80 8683 75 4160 70 90 65 0 0 60 80 75 95 70 65 60 80 75 90 70 65 60 80 75 85 70 65 60 75 70 8 65 60 70 6 6 5 0 5 12352 75 65 4252 ol 0 WINTER HEATING PERFORMANCE INDOOR DESIGN CONDITIONS 70 LEGEND VLT Ventilation Load Total VENTILATION e 450 375 300 VLS AU Load Sensible 80 EFFICIEN
17. c Inspect and wash outdoor coils as necessary 7 motors are sealed and require no oiling Manual 2100 549G Page 31 of 59 SEQUENCE OF OPERATION COOLING PART LOAD Circuit R Y1 makes at thermostat pulling in compressor contactor starting the compressor and outdoor motor The G indoor motor circuit is automatically completed on any call for cooling operation or can be energized by manual fan switch on subbase for constant air circulation COOLING FULL LOAD Circuit R Y1 amp Y2 makes at the thermostat energizing the 2nd stage solenoid in the compressor The default position of the compressor staging solenoid is non energized The compressor will run at low capacity until this solenoid is energized HEATING STAGE 1 A 24V solenoid coil on reversing valve controls heating cycle operation Two thermostat options one allowing Auto changeover from cycle to cycle and the other constantly energizing solenoid coil during heating season and thus eliminating pressure equalization noise except during defrost are to be used On option a circuit is completed from R B and R Y1 on each heating cycle energizing reversing valve solenoid and pulling in compressor contactor starting compressor and outdoor motor R G also make starting indoor blower motor Heat pump heating cycle now in operation The second option has no changeover position but instead energizes the reversing valve solenoid con
18. experience shows that reductions of airflow or loss of sensible temperature effectiveness may not occur for ten or more years However experience also shows that measurable changes in latent energy water vapor transfer can occur in shorter periods of time in commercial institutional and residential applications experiencing moderate occupant smoking or with cooking facilities In applications experiencing unusually high levels of occupant smoking such as smoking lounges nightclubs bars and restaurants washing of energy transfer surfaces as frequently as every six months may be necessary to maintain latent transfer efficiency Similar washing cycles may also be appropriate for industrial applications involving the ventilation of high levels of smoke or oil based aerosols such as those found in welding or machining operations for example In these applications latent efficiency losses of as much as 4096 or more may develop over a period of one to three years CLEANABILITY AND PERFORMANCE In order to maintain energy recovery ventilation systems energy transfer surfaces must be accessible for washing to remove oils grease tars and dirt that can impede performance or generate odors Washing of the desiccant surfaces is required to remove contaminate buildups that can reduce adsorption of water molecules The continued ability of an enthalpy wheel to transfer latent energy depends upon the permanence of the bond between the desicca
19. output 4 mA or 0 VDC Low limit 0 PPM Factory setting 0 PPM High limit 2000 5000 PPM depending on model Manual 2100 549G Page 48 of 59 CO high output range Sets the CO concentration for the highest output 20 mA 5 VDC or 10 VDC When is set above COL the transmitter 18 direct acting and the output will increase with an increase in CO level When COH is below COL the transmitter is reverse acting and the output will increase with a decrease in CO level 1 Low limit 0 PPM Factory setting 2000 5000 PPM depending on model High limit 2000 5000 PPM depending on model Temperature low output range Sets the temperature for the lowest output 4 or 0 VDC Low limit 32 0 F 0 09 Factory setting 32 0 F 0 0 C High limit 122 0 F 50 09 Temperature high output range Sets the temperature for the highest output 20 mA 5 VDC or 10 VDC When TOH is set above TOL the transmitter is direct acting and the output will increase with an increase in temperature When TOH is below TOL the transmitter is reverse acting and the output will increase with a decrease intemperature Low limit 32 0 F 0 09 Factory setting 122 09 50 0 High limit 122 0 F 50 09 Barometric pressure Sets the typical barometric pressure for the location where the transmitter is mounted The factory setting 1s for standard pressure at sea level Adjusting the barometric pressure gives a more accu
20. 124 134 143 153 igh Side 265 271 277 282 288 293 299 305 318 331 340 348 357 365 374 Side 38 45 52 60 67 74 82 89 96 104 113 122 131 140 149 igh Side 263 272 281 291 300 309 318 327 336 345 356 366 377 387 398 Manual 2100 5490 59 of 59
21. 59 WIRING LOW VOLTAGE WIRING 230 208 1 PHASE 3 PHASE EQUIPMENT DUAL PRIMARY VOLTAGE TRANSFORMERS All Equipment leaves the factory wired on 240V tap For 208V operation reconnect from 240V to 208V tap The acceptable operating voltage range for the 240 and 208V taps are as noted in Table 3 TABLE 3 OPERATING VOLTAGE RANGE 253 216 220 187 NOTE The voltage should be measured at the field power connection point in the unit and while the unit is operating at full load maximum amperage operating condition The standard unit includes a remote thermostat connection terminal strip See Figures 13 through 19 for connection diagrams Compatible thermostats are listed in Table 4 TABLE 4 WALL THERMOSTATS Thermostat Predominant Features 3 stage Cool 3 stage Heat Programmable Non Programmable Electronic HP or Conventional Auto or Manual changeover 8403 060 1120 445 8403 067 Carbon Dioxide Sensor with LCD for CDT 2W40 LCD RLY Sensor Readings 3 Stage Heat 3 Stage Cool Prog NonProg HP or Conv Auto or Manual Changeover Humidity Sensor w dehumidification Sensor w Inteligent Learning Control BACnet compatible 3 Stage Heat 3 Stage Cool Prog NonProg HP or Conv Auto or Manual Changeover Humidity Sensor w Gene ie dehumidification CO2 Sensor Motion Sensor w Intelligent Learning Control BACnet compatible 3 Stage Heat 3 Stage Cool Prog NonProg
22. A Manual 2100 549G 280f59 FIGURE 19 HEAT PUMP WITH COMBINATION CRV AND DB ECONOMIZER VENT CODE Only Recommend Bard CS9B THOC or CS9BE THOC as Require 3 Heating Cooling Stages Completestat 59 Model 59 Model 59 or t 4 1 m 1 Voltage Q Term Strip RED WHITE BLACK WHITE ORANGE PURPLE BROWN WHITE PURPLE WHITE YELLOW BLACK BLUE Ne CRV ECON Wiring Harness Factory installed jumper Remove jumper and connect to N C fire alarm circuit if emergency shutdown required Not needed below 15KW A Additional wire required for dehumidification models Connect orange wire to G terminal MIS 3270 Manual Page 2100 549G 29 of 59 START UP THESE UNITS REOUIRE R 410A REFRIGERANT AND POLYOL ESTER OIL GENERAL 1 Use separate service equipment to avoid cross contamination of oil and refrigerants 2 Use recovery equipment rated for R 410A refrigerant 3 Use manifold gauges rated for R 410A 800 psi 250 psi low R 410A is a binary blend of 32 and 125 R 410A is nearly azeotropic similar to R 22 a
23. A without Occupance Signal is used T idificati If CS9B THOC CS9BE THOC is used connect Brown White A Additional wire required for dehumidification models directly to A and do not use seperate controller MIS 3020 Manual 2100 549G Page 27 of 59 FIGURE 18 HEAT PUMP WITH AND CO CONTROL FULLY MODULATING Completestat 60 60 60 Model CS9B THO or 1 Model 4 59 0 5 0 2 82 09 8403 060 thermostat must be i in programmed 8 9 9 9 4 operation mode and in programmed fan mode for ventilation to function gt Thermostat 8 Bard 8403 060 st Term Strip Ew 09960000 RED WHITE BLACK WHITE ORANGE BROWN WHITE PINK 1 idi 02 Control ERV Wiring Harness Bard 8403 067 eed TN eae SO HO A Factory installed jumper Remove jumper and connect to N C fire alarm circuit if emergency shutdown required Notneeded below 15KW Connect to G terminal when thermostat has Occupancy Signal A Additional wire required for dehumidifcaton models A Psa 2 Jammer Detwean ane only when thermostat MIS 3021
24. Check line voltage for variation or sag Check low voltage connections G Y W R C at motor unseated pins in motor harness connectors Check for erratic command in variable speed applications Check out system controls Thermostat Perform Moisture Check Does removing panel or filter reduce puffing Reduce restriction Reduce max airflow Check low voltage Thermostat wires and connections Verify fan is not in delay mode wait until delay complete e R missing not connected at motor Perform motor control replacement check R missing not connected at motor s fan in delay mode wait until delay time complete Perform motor control replacement check Current leakage from controls into G Y or W Check for Triac switched thermostat or solid state relay Determine if it s air noise cabinet duct or motor noise interview customer if necessary High static creating high blower speed Is airflow set properly Does removing filter cause blower to slow down Check filter Use low pressure drop filter Check correct duct restrictions Symptom Noisy blower or cabinet Hunts or puffs at high CFM speed Evidence of Moisture Motor failure or malfunction has occurred and moisture is present Evidence of moisture present inside air mover Do Check out motor controls wiring and connections thoroughly befo
25. DESCRIPTION STANDARD EQUIPMENT Solid State Electronic Heat Pump Control Provides efficient 30 60 or 90 minute defrost cycle A thermistor sensor and speed up terminal for service along with a 8 minute defrost override are standard on the electronic heat pump control By default the I TEC are factory shipped on the 90 minute defrost cycle High Low Pressure Switch Provides refrigerant circuit high pressure and loss of charge protection Includes lockout circuit built into heat pump control that is resettable from room thermostat Five Minute Compressor Time Delay Provides short cycle protection for the compressor which extends compressor life Built into the electronic heat pump control as standard Dual Sensor Condensate Overflow Senses and provides system shut down if draining issue causes water level to rise in either drain pan Low Ambient Control The low ambient control permits cooling operation down to outdoor ambient IMPORTANT INSTALLER NOTE For improved start up performance wash the indoor coil with a dishwasher detergent PHASE MONITOR units with three phase scroll compressors are equipped with a 3 phase line monitor to prevent compressor damage due to phase reversal The phase monitor in this unit is equipped with two LEDs If the Y signal is present at the phase monitor and phases are correct the green LED will light and the compressor contactor is allowed to energize If phases are r
26. Sleeve 8 8 Sleeve Mounting Hole Locations zn 1 Centered Opening Centered utside 1 Wal 42 3 4 Min 2 43 1 4 Max 1 945 48 Min 48 1 2 Max 8 1 Grille og 962 Centered 4 optional Unit Mounting holes 1 ES 3 m 8 A 4 Min 115 34 Max 16 174 31 Min 207 20 293 34 43 PAN TN 8 Room Floor Level 1 1 1834 175 MOUNTING HOLE Right Side View 2 9 Front Wall Only View Higher Sill Heights Acheivable With Base Kit Separate telescoping sleeves available for different wall thicknesses MIS 2918 C WOOD FRAMED INSTALLATION for Wall Attachment 41 75 Inner wall 4 Upper fastener holes Unit 4 lower fastener 56 50 Height dimension shown without riser kit If unit uses riser kit add appropriate dimension to height MIS 3072 Manual 2100 549G Page 100459 CENTER OF GRAVITY FIGURE 3 CENTER OF GRAVITY MIS 3269 FRONT OF UNIT LEFT SIDE FLOOR TO CENTER FLOOR TO CENTER UNIT TESTED DOOR TO CENTER TO CENTER CRV amp ERV NO VENT X Dimension Y Dimension Z Dimension Z Dimension B 14 435 47 130
27. TABLE 8 COOLING MODE O D Temp Sensor 24VAC Signals Between Below 55 F Orange to Blue Between 56 69 F White to Blue Between 70 85 F Between 86 112 Above 112 Yellow to Blue Orange and White to Blue White and Yellow to Blue TABLE 9 HEAT PUMP MODE O D Temp Sensor 24VAC Signals Between Above 56 F Orange to Blue Between 55 30 F White to Blue Between 29 14 Below 13 F Yellow to Blue Orange and White to Blue If the output signals are not matching the specified temperature range then go to Table 6 and verify the thermistor output curve If the motor is receiving proper communications and proper high voltage power and is still not running proceed with Motor Replacement When checking the resistance temperature curve don t forget about the optional 2 2k ohm fan control resistor assembly REPLACING THE MOTOR This motor is replaced in one piece The control cannot be replaced separately from the motor Even if the control is remotely located the replacement part will be anew control with harness and new motor You must have the correct replacement motor from the manufacturer that is a direct replacement for the failed motor Manual 2100 549G Page 540159 USING THE WRONG MOTOR VOIDS ALL PRODUCT WARRANTIES AND MAY PRODUCE UNEXPECTED RESULTS Always mount the replacement motor and control according to the manufacturers specifications using all required hardw
28. blowers can be independently adjusted to maintain desired building pressurization conditions The rotating wheels provide the heat transfer effectively during both summer and winter conditions Provides required ventilation to meet the requirements of ASHRAE 62 1 Standard NOTE During operation below 55 outdoor temperature freezing of moisture in the heat transfer wheel can occur Consult the factory if this possibility exists The I TEC ERV can be controlled in different ways It can be turned ON OFF with an occupancy control thermostat or CO2 control It can also be configured for fully modulating variable speed with a CO2 control to only bring in the minimal amount of ventilation required helping to minimize sound levels and ventilation load on the structure Manual 2100 549G Page 400459 CONTROL WIRING The I TEC ER V comes wired from the factory ready to operate in manual mode ON OFF cycling and set to 375 of ventilation Care must be taken when deciding how to control the operation of the ventilator When designing the control circuit for the ventilator the following requirements must be met 1 The indoor blower must be run whenever the I TEC ERV is run 2 Select and configure the correct CFM ventilation level that the I TEC ERV needs to operate and configure the system to this level following later instructions within this section Over ventilating serves no useful purpose and significantly affects the ove
29. correct problem 1 Blink Low Pressure Switch Failure 3 Turn thermostat blower to auto position Indoor 2 Blink High Pressure Switch Failure blower should stop or Condensate Overflow 4 Set system switch to heat or cool Adjust Switch Activated thermostat to call for heat or cool The indoor 3 Blink Defrost Mode Active blower compressor and outdoor fan should start 4 Blink High Pressure Soft Lockout TABLE 5 TROUBLESHOOTING Symptom Description Check amp Possible Causes What amp How to Check Repair Compressor will 1 Check for LED illumination Yes 2 No not start heating Is there an LED illuminated on the board flashing d s da tote or cooling 2 Ch Check for error codes PR Is the LED flashing a Code to Step 4 8 3 Check for power at board T ls there 24 volts AC between and C Yee ede tu ep iS NO qo to Sp i 4 Check codes What code is blinking Code 1 go to Step 6 Code 2 go to Steps 7A amp 7B Fast Blink go to Step 5 dolay active Check for proper operation if still needed go back to Step 1 Wait for 5 minute delay or jump board s speed up pins Proper Op 9 P 6 Low pressure fault Check wiring circuit and unit pressures 7A High pressure fault Check wiring circuit and unit pressures 7B 7 Condensate overflow overflow fault 7 Condensate overflow fault upper indoor coil
30. needed and to further improve the LA Q The exhaust air blowers are protected by disposable filters and the intake air blowers are protected by washable filters Both are accessible without the need for tools CONTROL WIRING The I TEC CRV comes wired from the factory set to 375 of ventilation Care must be taken when deciding how to control the operation of the ventilator When designing the control circuit for the ventilator the following requirements must be met 1 The indoor blower must be run whenever the I TEC CRV is run 2 Select and configure the correct CFM ventilation level that the I TEC needs to operate and configure the system to this level following later instructions within this section Over ventilating serves no useful purpose and significantly affects the overall efficiency of the heat pump system System operating costs would also increase 3 Run the I TEC CRV only during periods when the conditioned space is occupied Running the ventilation during unoccupied periods wastes energy decreases the expected life of the CRV and can result in large moisture buildup in the structure Running the CRV when the structure is unoccupied allows moisture to build up in the structure because there is little or no cooling load Thus the air conditioner is not running enough to remove the excess moisture being brought in Use a control system that in some way can control the system based upon occupancy NOTICE
31. screws that retain to the motor control bracket to the sheet metal of the unit and remove them Remove two 2 nuts that retain the control to the bracket and then remove two 2 nuts that retain sheet metal motor control end plate Refer to Figure 30 5 Disconnect the three 3 wires interior of the motor control by using your thumb and forefinger squeezing the latch tab and the opposite side of the connector plug gently pulling the connector DO NOT PULL ON THE WIRES GRIP THE PLUG ONLY Refer to Figure 30 6 The control module is now completely detached from the motor Verify with a standard ohmmeter that the resistance from each motor lead in the motor plug just removed to the motor shell is gt 100 ohms Refer to Figure 31 Measure to unpainted motor end plate If any motor lead fails this test do not proceed to install the control module THE MOTOR IS DEFECTIVE AND MUST BE REPLACED Installing the new control module will cause it to fail also Figure 30 Control Disassembly _ From Motor Push until Latch Seats Over Ramp T Circuit Board 3 pin 16 pin Power Connector 5 pin Manual 2100 549G 560f59 Motor Connector Control Connector 7 Verify that the replacement control is correct for your application Refer to the manufacturer s authorized replacement list USING THE WRONG CONTROL WILL RESULT IN IMPROPER OR NO BLOWER OPERATION Orient the control module so that the 3 wire mo
32. to prevent equipment damage CAUTION locations where severe shock or vibration excessive moisture corrosive fumes present not exceed ratings of this device permanent damage not covered by warranty may result Upon powering the transmitter the firmware version will flash on the display A warm up period of 30 minutes is required for the transmitter to adjust to the current CO2 concentration 5 calibration feature of the transmitter requires exposure to normal outdoor equivalent carbon dioxide level once every thirty days CONFIGURING BARD PART 8403 067 CONTROL for MODULATING CONTROL Continued MOUNTING 1 Push tab on bottom of cover and lift cover from back plate 2 Select the mounting location away from diffusers lights or any external influences 3 Mount transmitter on a vertical surface to a standard electrical box using the two 6 M2C type screws provided 4 Pull wires through sub base hole and make necessary connections 5 Reattach cover to base plate WIRING Use maximum 18 AWG wire for wiring to terminals Refer to Figures 13 19 for wiring information SELECTION OF VOLTAGE OUTPUTS Prior to wiring verify the voltage selector jumpers on jumpers PJ1 and PJ2 are set to voltage See Figure below CURRENT VOLTAGE OUTPUT SELECTION JUMPER PJ1 amp PJ2 VOLTAGE OUTPUT C V Next move jumper PJ5 to the 0
33. you are fastening to There are several offset holes sized to accept to 1 4 diameter fastener that will easily allow you to hit studs on a framed wall See BRACKET SECTION VIEW for locating this top wall bracket which will need to be applied after the unit is located in the final position Additional optional mounting holes for up to a 3 8 diameter fastener are also available in the backside of the unit These can be accessed by e removing the air filters for the uppermost set e removing the compressor section service door for the lower set Refer to WOOD FRAMED INSTALLATION for additional framing required to secure unit to wall The additional optional mounting holes will require a long extension to drive the fasteners SEISMIC CONSIDERATIONS The I TEC product features several locations for product securement but all site conditions are different Consult with a licensed Seismic Engineer to advise of particular needs when attaching the I TEC unit to the structure WALL MOUNTING BRACKET LOCATION 43 3 8 7 8 94 FROM BOTTOM OF BRACKET TO FLOOR WITHOUT RISER KIT MIS 3029 Manual 2100 549G Page 9 of 59 BRACKET WALL SECTION VIEW Optional DU Optional Top 3 Ceiling 4 22222 Mounti O prona Telescoping _201 e Su Iv Duet Wall
34. 0 8 10 10 10 130 1 07 1 17 eu 10 10 B06 230 208 3 1 35 35 8 10 B09 1 44 45 8 10 130 1 07 1 9 10 14 14 06 1 18 20 12 12 09 1 22 25 10 10 136H1 A0Z 1 26 40 8 10 05 1 52 60 6 10 Alo 2302081 1 or2 78 80 4 8 26 52 40 60 8 6 10 10 15 1 or 2 84 90 4 8 26 52 40 60 8 6 10 10 136H1 BOZ 1 22 30 10 10 B06 1 40 45 8 10 Bog 2302083 49 50 8 10 5 1 51 60 6 10 136 1 07 1 11 15 14 14 06 1 20 20 12 12 09 1 24 25 10 10 5 1 28 30 10 10 142H1 A0Z 1 30 45 8 10 05 1 56 60 6 10 trcs 82 90 4 8 56 26 60 30 6 10 10 10 15 Or 2 82 90 4 8 56 52 60 60 6 6 10 10 142H1 B0Z 1 25 35 8 10 B06 1 43 50 8 10 z 2 52 60 6 10 15 1 52 60 6 10 142H1 C0Z 1 12 5 14 14 06 1 21 25 10 10 09 1 26 30 10 10 15 1 28 30 10 10 148H1 A0Z 1 34 50 8 10 04 1 54 60 6 10 05 1or2 59 70 6 8 35 26 45 30 8 10 10 10 An 599 2083 1 or2 85 90 3 8 35 52 45 60 8 6 10 10 15 1or2 85 90 3 8 35 52 45 60 8 6 10 10 A20 1 or 2 110 110 2 6 59 52 60 60 6 6 10 10 148H1 B0Z 1 26 35 8 10 06 1 44 50 8 10 09 230 208 3 1 53 60 6 10 15 1 59 60 6 10 18 1 53 60 6 10 148H1 C0Z 1 15 20 12 12 06 1 25 30 10 10 09 1 29 30 10 10 5 1 29 30 10 10 C18 1 29 30 10 10 160 1 07 1 44 60 8 10 05 1 or 2 70 80 4 8 44 26 60 30 8 10 10 10 10 230 208 1 1 or2 96 100 3 8 44 52 60 60 8 6 10 10 15 1 or2 96 100 3 8 44 52 60 60 8 6 10 10 20 1 or 2 112 120 2 6 60 52 60 60 6 6 10 10 160 1 07
35. 1 14 2414 431 47 136 1 14 24 43 47 136 1 14 2414 4312 47 142 1 B 14 24 47 142 1 14 24 47 148H1 A 14 24 47 148 1 14 24 47 160 1 14 24 4312 47 160 1 14 24 4372 47 Manual 2100 549G 11 of 59 Page FIGURE 4 REQUIRED CLEARANCES amp RECOMMENDED ACCESS WING WALL CONSTRUCTION TOP VIEW 12 MIN 1 H 12 MIN CLOSET CONSTRUCTION TOP VIEW 31 3 8 12 MIN 12 MIN 1 T 12 MIN 12 MIN RECOMMENDED SERVICE 1 ACCESS DIMENSIONS 12 MIN 12 MIN 48 MIN 9 FOR LEFT FOR RIGHT ACCESS ACCESS LEFT CORNER CONSTRUCTION TOP VIEW 24 MIN 24 MIN 0 REQUIRED 48 i 12 RECOMENDED MIN FOR FILTER ACCESS RIGHTCORNER CONSTRUCTION TOP VIEW 0 REQUIRED 1 MIS 3273 Manual 2100 549G Page 120459 FIGURE 5 COMPRESSOR SHIPPING BOLTS FIGURE 6 REMOVAL OF AIR DUCT CRV ERV AIR DUCT Manual 2100 549G Page 13 of 59 FIGURE 7A DUCTED APPLICATION BASIC UNIT 9 8SS56c SIN Yoo
36. 10V range See Figure below OUTPUT RANGE SELECTION JUMPER PJ5 Oto 10 V 0 to 20 mA EDITING MENU PARAMETERS Before any adjustment can be made to the transmitter the Menu Lockout Jumper PJ4 must be set to the On position See Figure below MENU LOCKOUT JUMPER ENABLED MENU E ON OFF DISABLED MENU a ON OFF Finish installing wiring the control Then refer to Figure 20 and the building ventilation specifications to decide what the maximum ventilation rate desired is and what the minimum maximum voltage signal is required for those levels Next enter the control programming stage listed below once the system is powered up to configure the control ACCESSING MENU PARAMETERS Step 1 To enter the menu structure press gt and CV simultaneously for 5 seconds display will show RON parameter Step 2 Press CAD CVD to cycle between menu items Step 3 Press lt c to edit the value for the displayed menu item SET will appear on display Step 4 Press C N CVD to adjust the value of the menu item Step 5 Press C to save the changes SET will disappear Step 6 Repeat Steps 2 through 5 for each of the parameters Step 7 To exit the menu at any time press and hold CAN C V simultaneously for 5 seconds or wait 10 seconds without pushing any buttons Manual 2100 549G Page 47 of 59 MENU DESCRIPTIONS RON DSP UNI
37. 110575 107010 103574 100260 97064 93981 91008 88139 85371 82699 80121 77632 75230 Manual 2100 549G Page 520459 TROUBLESHOOTING ECM 1428 OUTDOOR FAN MOTOR EXPOSED MOVING PARTS DISCONNECT ALL ELECTRICAL POWER BEFORE SERVICING FAILURE TO DO SO CAN RESULT HAZARD OF ELECTRICAL SHOCK ELECTRICAL SHOCK CAN RESULT IN SERIOUS URY OR DEATH DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY OR SUPPLIES BEFORE SERVICING 1 In normal operation this motor may rock back forth on start up Do not replace if this is the only symptom identified If the system is operating properly but the motor appears to run slower than it should the motor is good High efficiency systems with optimized fan blades are engineered to run slow to decrease noise The Bard I TEC Series models also adjust fan speed based upon varied outdoor ambient conditions to optimize sound and unit efficiency If the system is noisy freezing up running a high head pressure tripping the high pressure switch or compressor overload check the following a Ensure cleanliness of condenser coil s and fan blade shroud b Confirm the fan blade is not bent or deformed isn t rubbing on the shroud and that it is tight on the motor shaft Also ensure the motor is secure in its mounting system and the mounting system is secure to the unit Do not operate motor without fan blade attached Such operations will cause the motor
38. 130H1 85 DB Low Side 154 154 155 156 156 157 157 158 159 161 162 164 166 168 170 72 High Side 194 216 237 259 280 302 323 344 366 390 415 439 464 488 512 80 DB Low Side 145 146 148 149 150 152 153 154 155 156 158 159 160 161 163 67 WB High Side 191 212 233 254 275 295 323 338 359 384 409 433 458 483 508 75 DB Low Side 131 133 134 136 137 139 140 142 143 144 145 146 148 149 150 62 WB High Side 188 209 230 250 271 292 313 333 354 378 403 427 452 476 500 136H1 85 DB Low Side 158 159 161 162 163 164 166 167 168 169 171 172 173 175 176 72 WB High Side 198 219 240 260 281 302 323 343 364 389 414 439 464 489 515 75 DB Low Side 126 128 130 132 134 136 138 139 141 142 143 144 145 146 147 62 WB High Side 192 212 233 253 274 294 315 335 356 379 402 426 449 472 496 80 DB Low Side 140 141 143 145 146 148 150 151 153 154 155 156 157 158 159 67 WB High Side 195 216 236 257 278 299 326 340 361 384 408 432 455 479 503 85 DB Low Side 144 145 147 148 150 151 152 154 155 156 157 158 159 160 161 72 WB High Side 202 223 243 264 284 304 325 345 366 390 414 438 462 486 510 75 DB Low Side 129 130 131 132 133 133 134 135 136 137 139 140 142 143 144 62 WB High Side 183 205 226 248 269 291 313 334 356 381 407 432 458 484 509 80 DB Low Side 140 141 1
39. 136 137 138 139 140 62 WB High Side 218 238 258 279 299 319 339 360 380 404 428 452 476 500 524 80 DB Low Side 134 136 138 139 141 1421 144 146 147 148 149 150 151 152 153 67 WB High Side 217 239 260 282 304 326 355 369 391 416 440 465 490 514 539 85 DB Low Side 139 140 142 143 144 145 147 148 149 150 151 152 153 154 155 72 WB High Side 226 247 269 290 311 332 353 375 396 421 446 471 496 521 546 75 DB Low Side 125 126 127 128 129 129 130 131 132 134 135 136 138 139 140 62 WB High Side 203 225 248 271 293 316 339 361 384 411 437 464 491 517 544 80 DB Low Side 136 138 139 140 141 143 144 145 147 148 150 151 153 154 156 67 WB High Side 208 231 254 276 299 321 351 367 390 417 444 471 498 526 553 85 Low Side 148 149 151 153 154 159 161 162 164 166 167 169 171 72 WB High Side 215 238 261 284 307 377 400 428 456 484 512 539 567 75 DB Low Side 123 124 124 125 129 129 131 132 133 134 135 136 62 WB High Side 218 241 265 289 383 407 434 462 489 516 544 571 80 DB Low Side 134 135 137 138 13 14 143 145 146 147 148 150 51 67 WB High Side 224 248 271 295 319 3 413 441 469 497 524 552 80 85 DB Low Side 146 147 148 150 160 161 163 164 166 72 WB High Side 231 255 279 303 481 510 538 567 595 TABLE 10B FULL LOAD HEATING PRESSURE TEMPERATURE AIR TEMPERATURE ENTERI
40. 42 144 145 146 148 149 151 152 154 155 157 158 160 67 WB High Side 187 209 230 252 274 295 324 339 361 387 413 439 465 491 517 Low Side 154 155 157 158 160 161 162 164 165 167 168 170 172 173 175 High Side 189 212 234 257 280 303 325 348 371 397 424 451 477 504 530 Low Side 127 127 128 128 129 130 130 131 131 133 134 135 136 137 139 High Side 196 218 240 261 283 305 326 348 370 396 422 448 474 500 526 Low Side 137 138 139 140 142 142 143 144 146 147 148 150 151 152 154 High Side 200 222 244 266 288 310 339 353 375 402 428 454 481 507 534 Low Side 152 153 153 154 155 156 157 158 159 161 162 164 165 167 168 High Side 203 226 249 271 294 317 340 363 385 412 440 467 494 521 548 70 Tr ae d ET E zB TABLE 11B PART LOAD HEATING PRESSURE TEMPERATURE AIR TEMPERATURE ENTERING OUTDOOR COIL F eee i 40 47 54 61 68 75 83 90 97 104 115 125 135 146 156 igh Side 239 249 258 268 278 288 297 307 311 315 328 341 353 366 378 Side 36 44 51 58 65 73 80 87 96 104 114 123 133 142 152 igh Side 233 241 248 255 262 270 277 284 292 299 307 315 322 330 338 Side 37 45 52 60 67 75 82 90 96 103 110 118 126 134 142 igh Side 242 250 258 265 273 281 288 296 303 309 316 323 331 338 345 Side 35 43 51 59 67 75 83 92 98 105 115
41. CY 81 EFFICIENCY 82 EFFICIENCY VLL Ventilation Load Latent HRT Heat Recovery Total es 2430 1944 2025 1640 1620 1328 A RUE 4860 3888 4050 3280 3240 2656 55 7290 5832 4860 HRL Heat Recovery Latent 50 9720 7776 8100 6561 6480 5313 WVL Winter Ventilation Load 45 12150 9720 10125 8201 8100 6642 WHR Winter Heat 4o CE 30 272577 Note All performance data is based operating intake and exhaust blower on 15 26730 22275 the same speed D 65 55 50 45 35 30 25 20 15 Manual 2100 5490 Page 420159 FIGURE 25 MANUAL MODE JUMPER PIN ON TERMINAL To adjust the airflow ventilation rate 2 FLOW INDEX Light Co rao NON MODULATING determine the FLOW ERV CFM Blink Code INDEX needed for the intake and exhaust blowers for the CFM you require 1 Locate two 0 10Vdc Motor Control Boards in control panel 2 On intake Motor Control Board observing GREEN STATUS LIGHT turn manual adjust potentiometer with a small phillips head screwdriver CCW to increase FLOW INDEX or CW to reduce FLOW INDEX to match desired setting NOTE After long pause the green status light will blink long blinks for the TEN COUNT 500 the FLOW RATE INDEX which then is immediately followed by NEF EE
42. Doing so may compromise water seal between unit and sleeve 16 5 16 3 4 SELF TAPPING 6 5 16 3 4 NON TAPPING 4 5 16 1 2 NON TAPPING Use 6 3 4 Long Screws to Attach R Exhaust Sleeve to Unit Fan Shroud D P ull Inner Frame Out Until Flush With Grille Mounting Angle Use 4 1 1 2 Long Screws to Attach Louver Grille to Outer Sleeve d lt e Use 4 1 2 Long Screws to Attach REFN frame to Exhaust 2 Sleeve MIS 3014 Manual 2100 549G Page 19 of 59 0UTSIDE WALL BERN AREA BETWEEN WALL AND SLEEVE INSULATED NN OUTDOOR GRILLE SLEEVE FILL INSULATION DRAIN AREA INSULATED WITH 6 MATERAL NA NN FIGURE 11B UNIT MOUNTING INSIDE WALL SIZE VARIES I TEC UNIT FLOOR gt Manual 2100 549G Page 200459 MIS 2928 B INSTALLATION INSTRUCTIONS MOUNTING THE UNIT The wall sleeve is attached to the I TEC unit from the outside of the building See Figures 11A amp 11B Refer to wall sleeve Manual 2100 562 supplied with sleeve Following are the steps for attaching the I TEC to the wall sleeve 1 Liftthe unit into place making sure that it is aligned side to side 2 Pushthe unit back until the rear panel touches the sleeve gasket 3 This uni
43. HO w CO2 30 30 000 BTUH SPECIAL UNITS 09 9KW 3 Phase FILTER OPTIONS 3 CompleteStat THO w Ethernet 36 36 000 Standard 10 10KW 1 Phase P 2 Pleated MERV 8 4 CompleteStat THO w CO2 amp 42 42 000 D Dehum 15 15KW 1 amp 3 Phase M 2 Pleated MERV 11 Ethemet 48 48 000 18 18KW 3 Ph 22 60 60 000 E Pleated MERV 13 Note CompleteStat must be field E installed amp wired All units have VOLTS amp PHASE 24V terminal block A 230 208 60 1 B 230 208 60 3 VENTILATION OPTIONS C 460 60 3 B Blank Off Plate COIL TREATMENT X Std Hydrophilic Fin Evap amp Uncoated Alum Cond Coil 1 Phenolic Coated ID Coil 2 Phenolic Coated OD Coil RESERVED 3 Phenolic Coated ID amp OD Coil M Multi Speed CRV N Comb CRV amp DB Economizer R ERV TABLE 1 FACTORY BUILT IN ELECTRIC HEAT TABLE Models 0 I30HI B 130H1 C pu Pm HIE 148 1 160 1 240V 1 208V 1 240V 3 208V 3 460V 3 240V 1 208V 1 240V 3 208 3 460V 3 240V 1 208V 1 240V 3 208V 3 460V 3 240 1 208 1 BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH BTUH 40 18 652 10 239 50 17 065 12 799 17 065 12 799 17 065 12 799 17 065 12 799 60 20 478 15 359 20 478 20 478 15 359 20 478 20 478 15 359 20 478 90 30 717 23 038
44. HP or Conv 2 Auto or Changeover Humidity Sensor w CS9BE THO dehumidification Motion Sensor Intelligent Learning Control BACnet compatible Ethernet compatible 3 Stage Heat 3 Stage Cool Prog NonProg HP or Conv Auto or Manual Changeover Humidity Sensor w CS9BE THOC dehumidification CO2 Sensor Motion Sensor w Intelligent Learning Control BACnet compatible Ethernet compatible LOW VOLTAGE CONNECTIONS These units use a grounded 24 volt AC low voltage circuit terminal is the fan input terminal is the compressor part load input 2 terminal 18 the compressor full load input B W1 terminal is the reversing valve input The reversing valve must be energized for heating mode terminal is 24 VAC hot terminal is 24 VAC grounded L terminal is compressor lockout output This terminal is activated on a high or low pressure trip and condensate overflow trip by the electronic heat pump W2 terminal is first stage electric heat if equipped First stage electric heat can be operated simultaneously with the heat pump operating A terminal is the ventilation input This terminal energizes any factory installed ventilation option W3 terminal is second stage electric heat When W3 terminal is energized it locks out compressor operation to limit discharge air temperature and required branch circuit ampacity D
45. I TEC SERIES PACKAGED HEAT PUMP INSTALLATION Models INSTRUCTIONS 130H1 136H1 142H1 14SH1 I60H1 I30HID 136HID 142H1D I48HID 160 1 5 2957 Bard Manufacturing Company Inc Manual 2100 549G Bryan Ohio 43506 Supersedes 2100 549 File Vol Tab 14 Since 1914 Moving ahead just as planned Date 11 05 13 Climate Control Solutions Page 1 of 59 CONTENTS Getting Other Information and Publications Service Hints 84 31 For more information contact these publishers 3 Sequence of Operation 32 General amp ANSI 2535 5 Definitions 4 Pressure Service Ports 32 I TEC General Information Lowering Outdoor Fan Speed for Sound 32 I TEC Model Nomenclature 5 Defrost Cycle 33 Shipping Damage Unit Removal From Skid 8 I TEC Commercial Room Ventilator System Handling Unit After Removal From Skid 8 Gen Description Control Wiring amp Rec Seq 34 amer en Setting the Ventilation CFM Levels 34 Minimum Installation Height 9 Securing Unit to Structure amp Seismic Considerations 9 I TEC Comb CRV amp Economizer Vent
46. NG CONTROL BARD PART 8403 067 Carbon Dioxide and Temperature Transmitters accurately monitorthe CO2concentration and temperature in schools office buildings and otherindoor environments to help achieve LEED certification SPECIFICATIONS Range 0 to 2000 or 0 to 5000 ppm depending on model Acaution Temperature 32 to 122 F 0 to 50 C Accuracy 40 ppm 3 of reading Temperature Dependence 8 ppm C at 1100 ppm Non Linearity 16 ppm Pressure Dependence 0 13 of reading per mm of Hg Response Time 2 minutes for 99 step change Ambient Operating Temperature 32 to 122 F 0 to 50 C Ambient Operating Humidity 10 to 95 RH non condensing Power Requirements 16 to 35 VDC 19 to 28 VAC Power Consumption Average 2 watts Peak 3 75 watts Sensor Single beam dual wave length NDIR Output Current 4 20 mA max 500 Voltage 0 to 5 VDC or 0 to 10 VDC min 500 Relay SPST NO 2A 30 VDC RTD or thermistor per r t curves depending on model Weight 5 6 oz 158 8 g 2100 549G 46 of 59 Manual Page WARNING conc power supply before installation to prevent electrical shock equipment damage Make sure all connections are in accordance with the job wiring diagram and in accordance with national and local electrical codes Use copper conductors only Use electrostatic discharge precautions e g use of wrist straps during installation and wiring
47. NG OUTDOOR COIL F MODEL ss ees Pees poui 70 DB Low Side 33 40 48 55 63 70 78 85 91 98 107 116 125 134 143 igh Side 247 257 267 277 287 296 306 316 317 319 345 371 398 424 451 B6H1 70 DB Side 0 38 45 52 59 67 74 81 89 97 105 112 120 127 135 igh Side 244 252 259 267 275 283 290 298 305 311 320 328 337 345 354 142H1 70 DB 148 1 70 DB 160 1 70 fi LE 3 ow Side 34 40 47 54 60 67 74 81 88 95 102 109 116 123 130 igh Side 255 263 271 278 286 294 301 309 314 319 325 331 337 343 349 Side 33 40 47 54 60 67 74 81 89 97 106 114 122 130 138 igh Side 268 276 285 293 301 309 318 326 334 342 349 356 363 370 377 Side 38 42 46 50 54 58 63 67 80 94 102 110 118 127 135 igh Side 290 294 297 300 303 306 310 313 335 357 366 375 384 393 402 Manual 2100 5490 Page 580159 MODEL TABLE 11A PART LOAD COOLING PRESSURE TEMPERATURE AIR TEMPERATURE ENTERING OUTDOOR COIL F pes pes en pem ps s 80 DB Low Side 141 141 142 143 143 144 144 145 146 147 149 151 152 154 156 67 WB High Side 187 209 231 252 274 293 322 338 361 385 409 433 457 481 505 75 DB Low Side 127 128 129 129 130 131 132 133 134 135 137 138 140 141 143 62 WB High Side 184 206 227 249 270 292 313 334 356 380 403 427 451 475 498
48. OR SPEED NOM CFM BLACK 525 BLUE MED HI 450 ORANGE MED LO 375 RED LO 300 TO CHANGE SPEEDS MOVE BROWN WIRE WITH WHITE TRACE p owner Move brown white wire to corresponding motor speed for required ventilation CF M Factory setting is Medium Lo 375 CFM 1961 755 2 BLACK BLUE ORANGE RED 7961 7554 Om mj MIS 3022 Manual 2100 549G Page 35 of 59 REMOVE 5 SCREWS FROM CRV DOOR TO ACCESS CRV COMPONENTS FIGURE 22 CRV SPEED CHANGE TERMINAL ACCESS CRV INTAKE BLOWER NOTE CRV EXHAUST BLOWER IS BEHIND INTAKE BLOWER Manual 2100 549G Page 36 of 59 MIS 3023 BLOWER SPEED CONTROL LOCATION BLOWER SPEED CONTROL BLOWER REMOVED FOR CLARITY I TEC COMBINATION CRV amp ECONOMIZER VENTILATION SYSTEM DESCRIPTION The 1 combination Commercial Room Ventilator CRV and Dry Bulb Economizer is designed to be used with all Bard I TEC models This ventilation package and its control provides two 2 roles t will provide the required ventilation by delivering fresh air to meet I A Q Indoor Air Quality requirements through CRV portion of the device t will provide up to 525 CFM of free outdoor cooling CFM when the outdoor ambient temperature is below the outdoor thermostat setpoint NOTICE
49. S ERV CONTROL PANEL LOCATION Manual 2100 549G Page 45 of 59 FIGURE 28 CONTROL BOARD CONFIGURATION SETTING ECM Motor Control Cable To Automation Controller 0 2 000 RPM 0 10Vdc Signal Common Aux Common amp Neutral Common are internally connected Class Power Source Earth neutral Common at transformer for electrical safety CONFIGURING BARD PART 8403 067 Control Signal Signal Common RPM Out M Common Aux Power 24Vac dc 24Vac dc _ Neutral Common Move jumper pin to P position to allow variable ventilation control using 4 20MA CO2 controller Board mode pins factory shipped on pin for On Off control scheme using A signal on low voltage control board Red status light on when unit has power Green signal light continuously indicates the flow index the blower is producing After a pause the lamp will flash out long digits which will indicate the TENS count which is immediately followed by short flashes between 1 and 99 For example a flow index of 23 would yield two long flashes and three short flashes Manual adjust screw Use when operating in manual mode jumper installed along with the GREEN SIGNAL LIGHT to adjust to the required CFM of ventilation CW rotation reduces the FLOW INDEX CCW rotation increases the FLOW INDEX CO CONTROL for ERV MODULATI
50. Solid State HP Control Troubleshooting Procedure 51 Checking Temperature Sensor 52 Troubleshooting ECM 142R Motor 43 amp 54 Figures Replacing the Motor 54 Figure 1 Unit Dimensions 7 Troubleshooting Indoor ECM Motor 55 56 Figure 2A amp 2B Unit on Lift amp Unit Side 8 Fan Blade Setting Dimensions 57 Wall Mounting Bracket Location 9 Refrigerant 0 57 Bracket Wall Sect View amp Wood Framed Install 10 Figure 3 Center of Gravity 11 Figure 4 Req Clearances amp Rec Access 12 Figures continued Figure 5 Compressor Shipping Bolts 13 Figure 29 Hub Assembly w Ball Bearings 50 Figure 6 Removal of Air 13 Figure 30 Control Disassembly 56 Figure 7A Ducted Application 14 Figure 31 Winding TeSt 56 Figure 7B 3 Riser Application 15 Figure 32 Drip 2 2 56 Figure 7C 6 Riser Application
51. System Duct Work Supply Duct Connections amp Filters 17 Description amp Control Wiring 37 Condensate DNS 18 Setting the Ventilation CFM Levels 37 With No Vent Option and With CRV amp 18 Economizer Seq of Operation 38 Installation Instructions Heating amp Vent 39 Mounting the Unit amp Wiring Main Wiring 21 Energy Recovery Ventilator System Wiring Low Volt Wiring amp Low Volt Connections 22 General Description amp Control Wiring 40 Start Ups Recommended Control Sequences 41 R 410A Refrigerant Required 30 Changing Ventilation CFM Rates in Manual Mode 41 Topping Off System Charge 30 Changing to Fully Modulating Mode 41 Safety 30 Configuring Control for ERV Mod Control 47 48 Description of Standard Equipment 31 Maintenance Gen Frequency Clean amp Perform 49 50 Important Installer Note 31 Phase 31 Troubleshooting Three Phase Scroll Compressor 31
52. are to reduce vibration Make sure all wires are free of the fan blade and not pinched in mountings or cabinet through points TROUBLESHOOTING INDOOR ECM BLOWER MOTORS CAUTION Disconnect power from unit before removing or replacing connectors or servicing motor To avoid electric shock from the motor s capacitors disconnect power and wait at least 5 minutes before opening motor Symptom Motor rocks slightly when starting Motor won t start No movement Motor rocks but won t start Motor oscillates up load amp down while being tested off of blower Motor starts but runs erratically Varies up and down or intermittent Hunts or puffs at high CFM speed Stays at low despite system call for cool or heat CFM Stays at high Blower won t shut off Excessive noise Air noise Cause Procedure This is normal start up for ECM Check blower turns by hand Check power at motor Check low voltage 24 Vac R to C at motor Check low voltage connections G Y W R C at motor Check for unseated pins in connectors on motor harness Test with a temporary jumper between R G Check motor for tight shaft Perform motor control replacement check Perform Moisture Check Check for loose or compliant motor mount Make sure blower wheel is tight on shaft Perform motor control replacement check t is normal for motor to oscillate with no on shaft
53. disconnect to the OFF position to eliminate risk of injury or death due to electrical shock 3 Remove four 4 screws that retain the control panel cover to the unit Locate Fan Logic Control Board 5 Locate one of the red leads of the Fan Control Thermistor where it attaches to the Fan Logic Control and remove it 6 Install resistor in line with the thermistor lead removed in Step 5 and then connect back onto the Fan Logic Control Board DEFROST CYCLE The defrost cycle is controlled by temperature and time on the solid state heat pump control See Figure 20 When the outdoor temperature is in the lower 40 F temperature range or colder the outdoor coil temperature is 32 F or below This coil temperature is sensed by the coil temperature sensor mounted near the bottom of the outdoor coil Once coil temperature reaches 30 F or below the coil temperature sensor sends a signal to the control logic of the heat pump control and the defrost timer will start accumulating run time After 30 60 or 90 minutes of heat pump operation at 30 F or below the heat pump control will place the system in the defrost mode Factory default setting is 90 minutes During the defrost mode the refrigerant cycle switches back to the cooling cycle the outdoor motor stops electric heaters are energized and hot gas passing through the outdoor coil melts any accumulated frost When the temperature rises to approximately 57 F the coil temp
54. drains check lower outdoor coil drains check main drain line 8 Check for Compressor input signal Yes 10 N 11 ls there 24 volts AC between Y and C bbs gud Os Nols 9 No power to board The unit either does not have unit voltage the transformer is bad or the unit wiring is incorrect 10 Check for Compressor output signal there 24 volts AC between amp C Yos 12 No go to Step 13 11 No Y compressor input signal Check thermostat wiring incorrect phase of unit section on Phase Monitor and finally unit wiring 12 No CC compressor output signal Check compressor contactor for proper operation and finally check compressor 13 Faulty board Replace defrost board Fan outdoor motor Heat pump control defective Check across fan relay on heat pump control Com NC does not run Replace heat pump control cooling of heating Motor defective Check for open or shorted motor winding Replace motor except during defrost Motor capacitor defective Check capacitor rating Check for open or shorted capacitor Replace capacitor Reversing valve Heat pump control defective Check for 24V between RV C and B C does not energize 1 Check control circuit wiring heating only 2 Replace heat pump control Reversing valve solenoid coil defective Check for open or shorted coil Replace solenoid coil Unit will not go Temperature sensor or heat pump control defective Disconnect temperature sensor
55. e All models are suitable only for connection with copper wire Each unit and or wiring diagram will be marked Use Copper Conductors Only suitable for at least 75 THESE INSTRUCTIONS MUST BE ADHERED TO Refer to the National Electrical Code NEC for complete current carrying capacity data on the various insulation grades of wiring material All wiring must conform to NEC and all local codes The electrical data lists fuse and wire sizes 75 C copper for all models including the most commonly used heater sizes Also shown are the number of field power circuits required for the various models with heaters The unit rating plate lists a Maximum Time Delay Relay Fuse or Type circuit breaker that is to be used with the equipment The correct size must be used for proper circuit protection and also to assure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor See START UP section for information on three phase scroll compressor start ups The field wiring conduit connections are located on the top right hand corner of the unit with a wire raceway to feed the wires down to the circuit breaker s See Figure 12 FIGURE 12 COMPONENT LOCATION ELECTRIC HEAT INDOOR BLOWER LOW VOLTAGE REFRIGERANT PORT OUTDOOR FAN VENT OPTION WIRE RACEWAY EVAPORATOR COIL CONTROL PANEL CONDENSER COIL COMPRESSOR Manual 2100 549G Page 21 of
56. e They shall not be used to adjust charge If charge is in doubt reclaim evacuate and recharge the unit to the serial plate charge 2100 549G 57 of 59 Manual Page TABLE 10 FULL LOAD COOLING PRESSURE TEMPERATURE RETURN TEMPERATURE ENTERING OUTDOOR COIL F AIR MODEL TEMP Les Tes esr 4 75 DB Low Side 117 118 120 121 123 124 126 128 129 130 132 133 135 136 137 62 WB High Side 202 224 246 267 289 310 332 354 375 399 423 448 472 496 520 80 DB Low Side 130 131 133 134 136 139 140 141 142 144 145 147 148 150 151 67 WB High Side 201 225 248 271 294 315 345 362 386 411 436 461 486 510 535 85 DB Low Side 145 146 148 149 151 152 154 156 157 159 160 162 164 165 167 72 WB High Side 210 233 256 278 301 323 346 369 391 416 442 467 492 517 542 75 DB Low Side 126 127 129 130 131 132 134 135 136 137 138 139 141 142 143 62 WB High Side 209 231 252 274 295 317 338 360 381 405 429 452 476 500 524 80 DB Low Side 139 140 142 143 144 146 147 148 149 150 152 153 154 155 157 67 WB High Side 208 231 254 277 300 327 358 370 392 417 441 466 490 515 539 85 Low Side 154 155 157 158 159 160 162 163 164 165 167 168 170 171 172 72 High Side 217 240 262 285 307 330 352 375 397 422 447 471 496 521 540 75 DB Low Side 122 123 125 127 128 130 131 133 134 135
57. emoved See Figure 6 The air duct is removed by pulling it straight toward you there are no screws securing it in place Both the top and bottom slide toward you at the same time pull hard Once removed the compressor is visible as well as the tags on the shipping bolts Figure 5 After the compressor shipping bolts have been removed the CRV ERV air duct can be slid back in place and the compressor access panel attached MINIMUM INSTALLATION HEIGHT The minimum installation height to the bottom of the roof or fixed ceiling for ducted applications is 9 ft 7 in This provides enough clearance to install the duct work See Figure 7A The IWS Series wall sleeve has a built in vertical adjustment to fit window sill heights from 31 34 inches If additional height is required two riser platform accessories are available The IRP3 increases the unit height by 3 inches Figure 7B and the IRP6 by 6 inches Figure 7C Several construction options are available for unit installation of the IZ Series Serviceability and filter access must be considered before installing See Figure 5D for required clearances and recommended service access dimensions SECURING UNIT TO STRUCTURE Shipped with the I TEC unit is a wall mounting bracket screwed to shipping skid on backside of unit This bracket can be utilized to secure the top portion of the unit to the wall using the appropriate field supplied hardware based upon the material
58. er prior to unplugging or plugging in the motor could result in motor failure CAUTION Do not plug in or unplug blower motor connectors while the power is on Failure to do so may result in motor failure control This is a 24 VAC output Manual 2100 549G Page 220459 FIGURE 13 BASIC HEAT PUMP WITH VENTILATION PACKAGE Completestst 60 66 Model CS9B THO Model CS9BE THO 5 2 2 9 4 Q 5 9 5 Term Strip A Factory installed jumper Remove jumper and connectto N C fire alarm A Not needed below 15KW A Additional wire required for dehumidification models MIS 3016 Manual 2100 549G Page 23 of 59 FIGURE 14 HEAT PUMP WITH WITHOUT CONTROL Completestst 60 60 60 Model 59 or Model 59 es Y 0 O 9 09 69 69 69 0 0 cer We 0 9 665 000000 p 4 RED WHITE BLACK WHITE ORANGE BROWN WHITE CRV Wiring Harness Factory installed jumper Remove jumper and connect to fire alam circuit
59. erature sensor will send a signal to the heat pump control which will return the system to heating operations automatically If some abnormal or temporary condition such as a high wind causes the heat pump to have a prolonged defrost cycle the heat pump control will restore the system to heating operation automatically after 8 minutes The heat pump defrost control board has an option of 30 60 or 90 minute setting All models are shipped from the factory on the 90 minute pin If special circumstances require a change to another time remove the wire from the 90 minute terminal and reconnect to the desired terminal The manufacturer s recommendation is for 90 minute defrost cycles Refer to Figure 20 There is a cycle speed up jumper on the control This can be used for testing purposes to reduce the time between defrost cycle operation without waiting for time to elapse Use a small screwdriver or other metallic object or another inch QC to short between the SPEEDUP terminals to accelerate the HPC timer and initiate defrost Be careful not to touch any other terminals with the instrument used to short the SPEEDUP terminals It may take up to 15 seconds with the SPEEDUP terminals shorted for the speedup to be completed and the defrost cycle to start As soon as the defrost cycle kicks in remove the shorting instrument from the SPEEDUP terminals Otherwise the timing will remain accelerated and run through the 1 minute minimum defro
60. eversed the red fault LED will be lit and compressor operation is inhibited If a fault condition occurs reverse two of the supply leads to the unit Do not reverse any of the unit factory wires as damage may occur THREE PHASE SCROLL COMPRESSOR START UP INFORMATION Scroll compressors like several other types of compressors will only compress in one rotational direction Direction of rotation is not an issue with single phase compressors since they will always start and run in the proper direction START UP However three phase compressors will rotate in either direction depending upon phasing of the power Since there is a 50 50 chance of connecting power in such a way as to cause rotation in the reverse direction verification of proper rotation must be made Verification of proper rotation direction is made by Observing that suction pressure drops and discharge pressure rises when the compressor is energized Reverse rotation also results in an elevated sound level over that with correct rotation as well as substantially reduced current draw compared to tabulated values Verification of proper rotation must be made at the time the equipment is put into service If improper rotation is corrected at this time there will be no negative impact on the durability of the compressor However reverse operation for even one hour may have a negative impact on the bearing due to oil pump out All three phase scroll compressors u
61. f this section 1 Open hinged front doors 2 Disconnect unit power to eliminate shock hazard 3 Remove front cover door of ERV vent package Can leave filter access panels in place 4 Unplug wires coming in on left side from upper unit section 5 Unplug heat recovery cassette on the side you wish to access and slide cassette out the front of the unit 6 Remove two 2 screws securing partition on outboard side of cassette and remove 7 Rear drain access panels are now visible on both right hand and left hand sides in rear of box FIGURE 10 DRAIN LOCATIONS 2 Unit Drains Drain Access Locations Le gt x 2 Optional Unit Drain Entrances 2 0PTIONAL DRAIN HOLE WALL 73 16 16 1 2 18 3 4 OPTIONAL FLOOR MOUNTING HOLES MIS 2960 B FIGURE 11A UNIT MOUNTING Use 12 Field Supplied Concrete or Wood Screws to Secure Outer IMPORTANT Use 12 3 4 Long Sleeve to Structure Apply Caulk bead to 27 eer lapping entire perimeter seam Apply liberal amount Si between inner and 0 nit Bac of caulk to back of outer sleeve flange before installing y Q 3 4 Long 1 LEB REFN Self Tapping Screws A to Attach Inner Sleeve 22 to Outer Sleeve 2 lt IMPORTANT Use care when inserting screws to not damage gasketing material
62. from board and jumper across SPEEDUP terminals and SEN into defrost JMP terminals This should cause the unit to go through a defrost cycle within one minute heating only 1 If unit goes through defrost cycle replace temperature sensor 2 If unit does not go through defrost cycle replace heat pump control Unit will not come Temperature sensor or heat pump control defective Jumper across SPEEDUP terminal out of defrost This should cause the unit to come out of defrost within one minute heating only 1 If unit comes out of defrost cycle replace temperature sensor 2 If unit does not come out of defrost cycle replace heat pump control Manual 2100 549G Page 51 of 59 CHECKING TEMPERATURE SENSOR 1 Disconnect temperature sensor from board and from right hand outdoor coil 2 Use an ohmmeter and measure the resistance of the sensor Also use ohmmeter to check for short or open 3 Check resistance reading to chart of resistance use sensor ambient temperature Tolerance of part is 1096 If sensor resistance reads very low then sensor is shorted and will not allow proper operation of the heat pump control 5 If sensor is out of tolerance shorted open or reads very low ohms then it should be replaced TEMPERATURE F VS RESISTANCE R OF TEMPERATURE SENSOR 196871 190099 183585 177318 171289 165487 159904 154529 149355 144374 139576 134956 130506 126219 122089 118108 114272
63. ge wire located in the low voltage terminal box and connect it to the G terminal to activate this function See Figures 13 19 SETTING THE VENTILATION CFM LEVELS The I TEC has four pre set levels of ventilation available These are 300 375 450 and 525 of ventilation air The I TEC CRV is shipped from the factory set on the 375 CFM ventlation level To change between these four different levels of provided ventilation CFM first refer to Figure 21 to look up the corresponding needed for the intake and exhaust blowers to meet the design criteria and determine which speed wire color is needed Then perform the following steps HAZARD OF ELECTRICAL SHOCK e ELECTRICAL SHOCK CAN RESULT IN SERIOUS INJ URY OR DEATH DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY OR SUPPLIES BEFORE SERVICING 1 Open front swinging doors of main unit by popping front door latches 2 Throw main power disconnect to the OFF position to eliminate risk of injury or death due to electrical shock 3 Remove six 6 screws holding front CRV door in place See Figure 22 4 Locate Brown Wire with White Trace that has a black terminal on the end where it connects to the terminal strip See Figure 21 5 Move Brown Wire with White Trace to the corresponding CFM level needed in accordance with Figure 21 8 FIGURE 21 CRV MOTOR SPEED CFM CONFIGURATION VENT OPTION INTAKE EXHAUST SPEEDS WIRE COL
64. hand drain See Figure 10 The drain can be routed directly through the floor or through the wall There are also two optional drain locations in the lower rear back panel See Figure 8 The I TEC design does not require a trap in the condensate disposal tubing Check your local codes to see if a trap is required For a stand pipe floor drain or through the wall there is adequate hose length to reach anything located behind the unit The lower rear portion of the cabinet is recessed approximately 4 inches allowing room for a trap to be installed with the cabinet flush with the wall Keep in mind the drain line must be able to be removed from the unit if necessary to remove the unit from the wall Access plates are located on the rear of the unit for servicing the drain trap See Figure 10 Zf the drain line is to be routed through an unconditioned space it must be protected from freezing The condensate drain line can also be routed back into the unit through either the right hand or left hand optional drain locations on the rear of the unit The hole is covered by insulation on the inside of the unit and will have to be cut away Located inside the unit about 12 inches in from the front on both the left and right side are drain holes in the bottom of the base These holes are covered with insulation and are not visible They are located very close to the side panels and can be found by pressing down on the insulation
65. he new motor control module is working properly Follow the manufacturer s procedures for disposition of the old control module Figure 31 Winding Test Motor Connector 3 when gt 100 Figure 32 Drip Loop Back of Connector Orientation gt Contro Between4and8 o clock Drip Loop TROUBLESHOOTING ECM BLOWER MOTORS Continuous Dehum Heat Pump Heat Pump MODE of OFF Blower Part Load Full Load Mode Part Load Full Load Full Load with Full Load with Emergency OPERATION Ventilation Cooling Cooling when equipped Heat Pump Heat Pump 151 Bank of 1st amp 2nd Bank of Heat Mode Mode Electric Heat Electric Heat m ET G 1 Y1 Input Signals 2 Y2 Y1 Y1 Y2 Y2 B W1 B W2 W3 W2 W3 Pin 1 24 VAC C Common Signal Always Energized Pin 2 X Pin 3 24 VAC C Common Signal Always Energized Pin 4 Not Used Pin 5 Not Used Pin 6 X X X X X X X Pin 7 Not Used Pin 8 Not Used Pin 9 X X X Pin 10 Not Used Pin 11 Not Used Pin 12 24 VAC Hot R Signal Always Energized Pin 13 X Pin 14 Pin 15 X X X X Pin 16 Not Used FIGURE 33 CONTROL CONNECTOR MOTOR HALF
66. if emergency shutdown required A Connect to G terminal when thermostat has Occupancy Signal A Not needed below 15KW A Install a jumper between G and A only when thermostat without Occupance Signal is used A Additional wire required for dehumidification models MIS 3017 Manual 2100 549G 24 0159 FIGURE 15 HEAT PUMP WITH CRV CONTROL Completestst 60 60 Model 59 or rU C Model 4CS9BE THO 9 Q LA NOTE Bard 8403 060 thermostat must be i i i i in programmed O O 09 69 09 69 0 9 operation mode and in programmed fan mode for ventilation to function Y4 w 6 Term Strip 15 LT 11 ii 1 NA 1 1 ES 2 n NU O Eas d J Een Fal ca Maa he rae eh 44 li RED WHITE BLACK WHITE E ORANGE Tr BROWN WHITE A 1 CRV Wiring Harness 6 Control Bard 8403 067 A Factory installed jumper Remove jumper and connect A Connectto G terminal when thermostat has Occupancy Signal to N C fire alarm circuit if emergency shutdown
67. ith either foil tape or caulk Failing to do so may cause air leakage whistling of air FIGURE 8 SUPPLY DUCT CONNECTIONS SUPPLY DUCT AND FASTENERS TO BE FIELD SUPPLIED BEND THE PROVIDED SUPPLY FRAME FLANGES UP FOR DUCT INSTALLATION 5 2959 NOTE Unit cabinet supply air duct and duct free plenum are approved for 0 clearance to combustible material The I TEC series heat pumps are designed for use with free return non ducted and either duct free with the use of IPBDF Series Plenum Box 8 or 12 or a duct supply air system The IPBDF Plenum Box mounts on top of the unit and has both vertically and horizontally adjustable louvers on the front discharge grille When used with a ducted supply an ICX9 or ICX10 Cabinet Extension may be used to conceal the ductwork above the unit to the ceiling The ICX9 extends 20 above the unit for a total height of 9 6 for a floor mounted install 9 9 with IRP3 riser amp 10 0 with IRP6 riser The ICX10 extends 28 above the unit for a total height of 10 2 for a floor mounted install 10 5 with IRP3 riser amp 10 8 with IRP6 riser The unit is equipped with a variable speed indoor blower motor which increases in speed with an increase in duct static pressure The unit will therefore deliver proper rated airflow up to the maximum ESP shown in Table 1A However for quiet operation of the air system the duct static should be kept as low as practical w
68. ithin the guidelines of good duct design FILTERS Two 2 inch throw away filters 24 x 30 and two 1 inch throw away filters 12 x 20 are supplied with each unit The 2 inch filters slide into brackets on both sides for the return air openings The 1 inch filters are in the cabinet doors for the vent room air exhaust If a CRV or ERV vent option is used there two 2 additional 2 8 x 17 washable filters included with that option See Figure 9 for specific locations The filters are serviced from the inside of the building by opening the cabinet doors and do not require any tools to access FIGURE 9 FILTER LOCATION 24 X 30 X2 FILTERS INDOOR BLOWER ACCESS COMPRESSOR ACCESS ACCESS TO WASHABLE FILTERS VENT OPTION ACCESS 12 X20 X 1 FILTERS Manual 2100 549G Page 17 of 59 CONDENSATE DRAIN There are two condensate drain connections from the condenser drain pan compressor area These are visible from the rear of the unit Factory installed tubing connects the two drains at a tee connection and then a single drain hose with a barbed hose connector carries the condensate to the draining option of your choice Enough tubing is provided to reach all drain options and can be cut down in length The unit is shipped from the factory with the drain line on the left hand side as you look at the rear of the unit The tubing can be removed from the drain connections and flipped for a right
69. ive motor or to the intake and exhaust blower motors 5 belt chirping or squealing noise is present apply a small amount of LPS 1 or equivalent dry film lubricant to the belt solvents temperatures in excess of 170 F or steam Damage to the wheel may result Do not disassemble and immerse the entire heat wheel in a soaking solution as bearing and other damage may result FIGURE 29 ASSEMBLY WITH BALL BEARINGS BEARING BEARING MIS 1679 Manual 2100 549G 500159 SCREW 6 x 32 x 3 4 DUST SCREW 10 x 32 WASHER E TA NUT 10 x 24 kd 1 SPACERS 2 aan HUB PLATE HEAT EXCHANGER WHEEL HUB PLATE WITH BOLTS SHAFT OIL WITH 20 WT NON DETERGENT DIL LOCK WASHER NIT 1 4 x 20 TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL NOTE If there was no power to 24 volt transformer TROUBLESHOOTING PROCEDURE the compressor and outdoor fan motor will 1 NOTE A thorough understanding of the defrost not start for 5 minutes This is because of cycle sequence is essential Review that section the compressor short cycle protection earlier in this manual prior to troubleshooting the CODES FUNCTION control Turn on AC power supply to unit Slow Blink Normal Operation 2 Turn thermostat blower switch to on the Fast Blink Del indoor blower should start If it doesn t troubleshoot indoor unit
70. lights in a room are usually on only when occupied 5 Use a manual timer that the occupants turn to energize the ERV for a specific number of hours 6 Use a programmable mechanical timer to energize the ERV and indoor blower during occupied periods of the day NOTE The ventilation package comes with a blower interlock function but is disabled when it is shipped from the factory in case you do not utilize a thermostat with an occupancy output or a occupancy sensor and must tie terminal to terminal to drive the ventilation package If you do have a thermostat or control that does drive occupancy output you will need to remove the tape from the orange wire located in the low voltage terminal box and connect it to the G terminal to activate this function See Figures 13 19 CHANGING VENTILATION CFM RATES IN MANUAL MODE e HAZARD OF ELECTRICAL SHOCK ELECTRICAL SHOCK CAN RESULT IN SERIOUS INJURY OR DEATH w e DISCONNECT THE REMOTE ELECTRIC POWER SUPPLY g SUPPLIES BEFORE SERVICING To adjust the airflow ventilation rate first refer to Figure 25A to look up the FLOW INDEX needed for the intake and exhaust blowers for the CFM you require Then perform the following steps 1 Open front swinging doors of main unit by popping front door latches 2 Throw main power disconnect to the OFF position to eliminate risk of injury or death due to electrical shock 3 Remove five 5 screws holding fr
71. m Box IPBDF8 color 8 height or IPBDF12 color 12 height is recommended These instructions explain the recommended method to install the air cooled self contained unit and the electrical connections to it These instructions and any instructions packaged with any separate equipment required to make up the entire heating and air conditioning system should be carefully read before beginning the installation Note particularly Start Procedure and any tags and or labels attached to the equipment ANSI Z535 5 Definitions Danger Indicate s a hazardous situation which if not avoided will result in death or serious injury The signal word DANGER is to be limited to the most extreme situations DANGER signs should not be used for property damage hazards unless personal injury risk appropriate to these levels is also involved Warning Indicate s a hazardous situation which if not avoided could result in death or serious injury WARNING signs should not be used for property damage hazards unless personal injury risk appropriate to this level is also involved Caution Indicate s a hazardous situation which if not avoided could result in minor or moderate injury CAUTION signs without a safety alert symbol may be used to alert against unsafe practices that can result in property damage only Notice this header is preferred to address practices not related to personal injury The safety alert symbol shall
72. mpleteStat should never 17 terminals conjunction with so relay R2 will never energize and neither will Economizer Ventilation Speed Y1 and Y signals will pass through NC contacts of relay R2 contacts and all heating operations will be normal VENTILATION MODE The call for ventilation will never be disrupted with this control circuit Anytime signal from CompleteStat is present the VENTILATION SPEED of the vent package will be energized Signal from thermostat will also energize relay R4 Blower Interlock Relay completing a circuit from through the contacts to ensure blower operations on the ventilation call FIGURE 24 MOTOR SPEED CFM CONFIGURATION VENT OPTION INTAKE EXHAUST SPEEDS WIRE COLOR SPEED NOM CFM BLACK 525 MED HI 450 ORANGE MED LO 375 RED L0 300 TO CHANGE SPEEDS MOVE BROWN WIRE WITH WHITE TRACE Move pink wire to corresponding motor speed for required economizer operation CF M Factory setting is High 525 CFM PINK p omini F Move brown white wire to corresponding motor speed for required ventilation CF M Factory setting is Medium Lo 375 CFM Ez 1961 755 2 4 BLACK 8 ED HI We BLUE T 74 ED LO 31 ORANGE
73. nal strip engaging stage 1 mechanical cooling NC contacts of relay R2 that connects thermostat Y 1 to Y 1 on low voltage terminal strip is opened to eliminate feedback e Y1 thermostat signal powers relay coil R3 through now closed relay contacts R2 closing contacts between and Y2 at low voltage terminal strip e thermostat signal will do nothing as NC contacts of relay R2 are now opened to eliminate any feedback to thermostat Dehumidification Mode On call from CompleteStat for dehumidification D thermostat signal powers relay coil R1 Dehum Relay R1 relay then opens NC contact between YO and outdoor thermostat This will then negate any ECONOMIZER SPEED SIGNAL from energizing the ventilation package Y1 amp Y2 thermostat signals will pass through NC contacts of Relay R2 High Ambient Relay as relay coil R2 will be rendered inoperable by R1 contacts opening Normal cooling calls can then still apply to override Dehum call 85 ae 0 CD R2 E Ga 1 R2 OAK Eon ECON VENT SPEED R4 CRV VENT SPEED R1 DEHUM RELAY R2 HIGH AMBIENT RELAY R3 FULL LOAD RELAY R4 BLOWER INTERLOCK RELAY FIELD WIRE MIS 3272 FACTORY WIRE Manual 2100 549G Page 380159 HEATING MODE OPERATION Co
74. nd R 12 Although nearly azeotropic charge with liquid refrigerant 6 R 410A operates at 40 70 higher pressure than R 22 and systems designed for R 22 cannot withstand this higher pressure 7 410 has an ozone depletion potential of zero but must be reclaimed due to its global warming potential 8 R 410A compressors use Polyol Ester oil 9 Polyol Ester oil is hygroscopic it will rapidly absorb moisture and strongly hold this moisture in the oil 10 A liquid line dryer must be used even a deep vacuum will not separate moisture from the oil 11 Limit atmospheric exposure to 15 minutes 12 If compressor removal is necessary always plug compressor immediately after removal Purge with small amount of nitrogen when inserting plugs TOPPING OFF SYSTEM CHARGE If aleak has occurred in the system Bard Manufacturing recommends reclaiming evacuating see criteria above and charging to the nameplate charge However if done correctly topping off the system charge can be done without problems With R 410A there are no significant changes in the refrigerant composition during multiple leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant charge in the system may be used after leaks have occurred and then top off the charge by utilizing the charging charts on the inner control panel cover a
75. not be used with this signal word As an alternative to NOTICE the word CAUTION without the safety alert symbol may be used to indicate a message not related to personal injury Manual 2100 549G 40159 While these instructions are intended as a general recommended guide they do not supersede any national and or local codes in any way Authorities having jurisdiction should be consulted before the installation is made See Page 3 for information on codes and standards Size of unit for a proposed installation should be based on heat loss or heat gain calculation made according to methods of Air Conditioning Contractors of America ACCA The air duct should be installed in accordance with the Standards of the National Fire Protection Systems of Other Than Residence Type NFPA No 90A and Residence Type Warm Air Heating and Air Conditioning Systems NFPA No 90B Where local regulations are at a variance with instructions installer should adhere to local codes A DANGER NOTICE Series General Information I TEC MODEL NOMENCLATURE I 36 H 1 D A 07 4 2 SERIES HEAT PUMP ELECTRIC HEAT X Beige paint X 24V Terminal Block Only w o 0Z No heat w breaker CompleteStat 04 4KW 1 Phase 1 White paint REVISION 4 Gray paint 1 CompleteStat THO Temp NOMINAL 05 5KW 1 Humidity amp CAPACITY 06 6KW 3 Phase 2 CompleteStat T
76. nt and the energy transfer surfaces Bard wheels feature silica gel desiccant permanently bonded to the heat exchange surface without adhesives the desiccant will not be lost in the washing process Proper cleaning of the Bard energy recovery wheel will restore latent effectiveness to near original performance MAINTENANCE PROCEDURES NOTE Local conditions can vary and affect the required time between routine maintenance procedures therefore all sites or specific units at a site may not have the same schedule to maintain acceptable performance The following timetables are recommended and can be altered based on local experience QUARTERLY MAINTENANCE 1 Inspect mist eliminator prefilter and clean if necessary This filter is located in the fresh air intake hood on the front of the unit This is an aluminum mesh filter and can be cleaned with water and any detergent not harmful to aluminum 2 Inspect wall mount unit filter and clean or replace as necessary This filter is located either in the unit in a return air filter grille assembly or both If in the unit it can be accessed by removing the lower service door on the front of the unit If in a return air filter grille by hinging the grille open to gain access 3 Inspect energy recovery ventilator for proper wheel rotation and dirt buildup This can be done in conjunction with Item 2 above Energize the energy recovery ventilator after inspecting the filter and Observe for
77. ont ERV door in place See Figure 27 4 Remove ERV Control Panel Cover by removing four 4 screws See Figure 27 5 Locate two 0 10Vdc Motor Control Boards in control panel See Figure 28 6 On intake Motor Control Board observing GREEN STATUS LIGHT turn manual adjust potentiometer to increase FLOW INDEX CW to reduce FLOW INDEX to match desired setting NOTE After long pause the green status light will blink long blinks for the TEN COUNT of the FLOW RATE INDEX then immediately followed by fast blinks which indicate the second digit For example a Flow Index of 23 would be two long blinks followed by 3 fast blinks of the GREEN STATUS LIGHT 7 On exhaust Motor Control Board observing GREEN STATUS LIGHT turn manual adjust potentiometer to increase FLOW INDEX CW to reduce FLOW INDEX to match desired setting NOTE Same GREEN STATUS LIGHT blink as Step 6 CHANGING TO FULLY MODULATING MODE If you want to operate the ERV in fully variable mode Fig 25B only run at required speed to maintain set point CO2 levels you will need to configure the ERV to the following 1 Open front swinging doors of main unit by popping front door latches 2 Throw main power disconnect to the position to eliminate risk of injury or death due to electrical shock 3 Remove ERV Control Panel Cover by removing four 4 screws See Figure 27 4
78. proper rotation and or dirt buildup 4 Recommended energy recovery wheel cleaning procedures follow Steps 5 through 8 5 Disconnect all power to unit Remove the lower service door of the wall mount unit to gain access to the energy recovery ventilator 6 Remove the front access panel on the ventilator Unplug amp connectors to cassette motors Slide energy recovery cassette out of ventilator 7 Use a shop vacuum with brush attachment to clean both sides of the energy recovery wheels 8 Reverse shop vacuum to use as a blower and blow out any residual dry debris from the wheel NOTE Discoloration and staining of the wheel does not affect its performance Only excessive buildup of foreign material needs to be removed 9 belt chirping or squealing noise is present apply a small amount of LPS 1 or equivalent dry film lubricant to the belt Manual 2100 549G Page 49 of 59 ANNUAL MAINTENANCE 1 Inspect and conduct the same procedures as outlined under Quarterly Maintenance 2 To maintain peak latent moisture removal capac ity it is recommended that the energy recovery wheels be sprayed with a diluted nonacid based evaporator coil cleaner or alkaline detergent solution such as 409 NOTE Do not use acid based cleaners aromatic 3 Rinse wheel thoroughly after application of the cleaning solution and allow to drain before reinstalling 4 Nore lubrication is required to heat wheel bearings of the dr
79. rall efficiency of the heat pump system System operating costs would also increase 3 Run the I TEC ERV only during periods when the conditioned space is occupied Running the ERV during unoccupied periods wastes energy decreases the expected life of the ERV and can result in large moisture buildup in the structure The ERV removes 60 7046 of the moisture in the incoming air not 10096 of it Running the ERV when the structure is unoccupied allows moisture to build up in the structure because there is little or no cooling load Thus the air conditioner is not running enough to remove the excess moisture being brought in Use control system that in some way can control the system based upon occupancy NOTICE Operating the I TEC ERV during unoccupied periods can result in a build up of excess moisture in the structure RECOMMENDED CONTROL SEQUENCES Several possible scenarios listed below 1 Usea programmable electronic thermostat with auxiliary terminal to control the ERV based on daily programmed occupance periods Bard markets and recommends Bard Part 8403 060 programmable electronic thermostat 2 Usea motion sensor in conjuntion with a mechanical thermostat to determine occupancy in the structure Bard markets the CS2000A for this use 3 Use DDC control system to control the ERV based upon a room occupancy schedule to control the ERV 4 Tie the operation of the ERV into the light switch The
80. rate measurement especially at higher elevations Low limit 20 0 in Hg 600 hPa Factory setting 29 9 in Hg 1013 hPa High limit 32 0 in Hg 1100 hPa ENERGY RECOVERY VENTILATOR MAINTENANCE GENERAL INFORMATION The ability to clean exposed surfaces within air moving systems is an important design consideration for the maintenance of system performance and air quality need for periodic cleaning will be a function of operating schedule climate and contaminants in the indoor air being exhausted and in the outdoor air being supplied to the building All components exposed to the airstream including energy recovery wheels may require cleaning in most applications Rotary counterflow heat exchanges heat wheels with laminar airflow are self cleaning with respect to dry particles Smaller particles pass through larger particles land on the surface and are blown clear as the flow direction is reversed For this reason the primary need for cleaning 18 to remove films of oil based aerosols that have condensed on energy transfer surfaces Buildup of material over time may eventually reduce airflow Most importantly in the case of desiccant coated enthalpy wheels such films can close off micron sized pores at the surface of the desiccant material reducing the efficiency with which the desiccant can absorb and desorb moisture FREQUENCY In a reasonably clean indoor environment such as a school office building or home
81. re replacing motor Orient connectors down so water can t get in Install drip loops Use authorized motor and model s for replacement Keep static pressure to a minimum Recommend high efficiency low static filters Recommend keeping filters clean Design ductwork for min static max comfort Look for and recommend ductwork improvement where necessary Size the equipment wisely Check orientation before inserting motor connectors Moisture Check Cause Procedure Check for loose blower housing panels etc High static creating high blower speed Check for air whistling through seams in ducts cabinets or panels Check for cabinet duct deformation Does removing panel or filter reduce puffing Reduce restriction Reduce max airflow e Replace motor and Perform Moisture Check Perform Moisture Check Don t Automatically assume the motor is bad Locate connectors above 7 and 4 o clock positions Replace one motor or control model with another unless an authorized replacement Use high pressure drop filters some have 2 H20 drop Use restricted returns Oversize system then compensate with low airflow Plug in power connector backwards Force plugs e Connectors are oriented down as recommended by equipment manufacturer Arrange harness with drip loop under motor Is condensate drain plugged
82. required Install a jumper between G and A only when thermostat A Not needed below 15KW without Occupance Signal is used If CS9B THOC CS9BE THOC is used connect Brown White A Additional wire required for dehumidification models directly to A and do notuse seperate controller MIS 3018 Manual 2100 549G Page 25 of 59 FIGURE 16 PUMP WITH WITHOUT CONTROL Completestat 60 60 60 SERN Model CS9B THO or a Model 4 598 2 82 ag 9 LA 8403 060 thermostat must be Thermostat in programmed in programmed fan mode for ventilation to function 1 R 1 1 1 1 1 Low S Wwe 8 69 6 2 69 09 0 0 0 9 0 Term Strip rt 00 11 Sa 8 BLACK WHITE ORANGE BROWN WHITE PINK PURPLE Wiring Harness Factory installed jumper Remove jumper and connect TT A to N C fire alarm circuit if emergency shutdown required Connectto G terminal when thermostat has Occupancy Signal Not needed below 15KW Install a jumper between A only when thermostat
83. rm Air ANSI NFPA 90B Heating and Air Conditioning Systems Load Calculation for ACCA Manual J or Winter and Summer Manual N Air Conditioning Low Pressure Low Velocity ACCA Manual D or Duct System Design Manual Q Winter and Summer Air Conditioning FOR MORE INFORMATION CONTACT THESE PUBLISHERS ACCA ANSI Air Conditioning Contractors of America 1712 New Hampshire Avenue Washington DC 20009 Telephone 202 483 9370 Fax 202 234 4721 American National Standards Institute 11 West Street 13th Floor New York NY 10036 Telephone 212 642 4900 Fax 212 302 1286 ASHRAE American Society of Heating Refrigeration NFPA and Air Conditioning Engineers Inc 1791 Tullie Circle Atlanta GA 30329 2305 Telephone 404 636 8400 Fax 404 321 5478 National Fire Protection Association Batterymarch Park P O Box 9101 Quincy MA 02269 9901 Telephone 800 344 3555 Fax 617 984 7057 Manual 2100 549G Page 3 of 59 GENERAL The equipment covered in this manual is to be installed by trained experienced service and installation technicians The I TEC must be installed with the Bard manufactured IWS wall sleeve and ILG louver grille accessories These are sold as separate accessories Any substitutions will void the manufacturer s warranty The unit is designed for use with or without ductwork For use without ductwork Plenu
84. rminals for a few seconds can do this FIGURE 20 DEFROST CYCLE sw sw 1 2 TIME SEC OFFIOFF 30 LOW PRESSURE BYPASS TIMER SWITCH fone LORF De FACTORY SETTING 120 SECONDS NE 49 LIN R ON O 2 B D R Y cle ote SENSOR O O SENJMp SPEEDUP S ACCUMULATED DEFROST TIME TIMER FACTORY SETTING 90 MIN MIS 2668 A Manual 2100 549G Page 33 of 59 I TEC COMMERCIAL ROOM VENTILATOR SYSTEM GENERAL DESCRIPTION The I TEC Commercial Room Ventilator CRV is designed to be used with all Bard I TEC models The only intent of this device is to provide the required ventilation by delivering fresh air to meet I A Q Indoor Air Quality requirements In the installed application this system also includes exhaust provisions which are balanced with the intake air to maintain building pressurization requirements of ASHRAE 62 1 Standard Ventilation is accomplished with 2 blower motor assemblies for maximum ventilation at low sound levels The intake and exhaust blowers are programmed independently and are balanced to maintain a slight positive pressurization in accordance to ASHRAE 62 1 Standard The I TEC is also provided with filters to reduce the required service
85. rom the front or rear of the unit without having to remove any doors or side panels See Figure 1 for fork openings The shipping brackets on front and rear of the unit must be removed and discarded The unit can now be lifted straight up and the skid can be slid out from underneath Tip unit from left side only Failure to do so may result in injury due to unit top heaviness or compressor damage FIGURE 2A UNIT ON LIFT Manual 2100 549G 80159 HANDLING UNIT AFTER REMOVAL FROM SKID If a wide and tall enough opening exists the I TEC can be moved as a complete assembled unit If not it is designed to break down into two sections to allow it to pass through a 36 inch wide door 10 11 4 FORK OPENING Visible after removing tie plate Covers entire width shortened for illustration purposes to show Fork Opena Depress amp release both amp bottom door latches and open doors Remove the doors by lifting straight up and off from the hinge pins Remove cabinet sides by first removing the four 4 sheet metal screws from the front leading edge of the side panel The panel will not fall off Swing the panel away from the chassis 20 to 30 degrees amp then pull forward from the two 2 tabs supporting the rear edge Oneach side of the unit is a tie plate that secures the top and bottom sections with four 4 cap bolts Using a 2 inch wrench or socket remove the
86. roubleshooting ECM 142 54 Figure 22 CRV Speed Change Terminal Access 36 Table 8 Cooling Mode 54 Figure 23 Economizer Control Circuit u 38 Table 9 Heat Pump Mode 54 Figure 24 Motor Speed Configuration nne 39 Troubleshooting ECM Blower Motors 57 Fig 25 Manual Mode M Terminal 43 Power Connector seem 57 Fig 25B Mod Mode P Terminal 43 Table 10A Pressures Full Load Cooling 58 Figure 26 Ventilation Airflow Diagram 44 Table 10B Pressures Full Load Heating 58 Figure 27 ERV Control Access 45 Table 11 Pressures Part Load Cooling up E 59 Figure 28 Control Board Config Setting 46 Table 118 Pressures Part Load Heating 59 Manual 2100 549G Page 20f59 GETTING OTHER INFORMATION PUBLICATIONS These publications help you install the air conditioner or heat pump You can usually find these at your local library or purchase them directly from the publisher Be sure to consult current edition of each standard National Electrical Code ANSI NFPA 70 Standard for the Installation ANSI NFPA 90A of Air Conditioning and Ventilating Systems Standard for Wa
87. s a guideline REMEMBER When adding R 410A refrigerant it must come out of the charging cylinder tank as a liquid to avoid any fractionation and to insure optimal system performance Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction WARNING Failure to conform to these practices could lead to injury or death SAFETY PRACTICES 1 Never mix R 410A with other refrigerants 2 Use gloves and safety glasses Polyol Ester oils can be irritating to the skin and liquid refrigerant will freeze the skin 3 Never use air and R 410A to leak check the mixture may become flammable 4 Do not inhale R 410A the vapor attacks the nervous system creating dizziness loss of coordination and slurred speech Cardiac irregularities unconsciousness and ultimate death can result from breathing this concentration 5 Do not burn R 410A This decomposition produces hazardous vapors Evacuate the area if exposed Use only cylinders rated DOT4BA 4BW 400 Never fill cylinders over 80 of total capacity 8 Store cylinders in a cool area out of direct sunlight 9 Never heat cylinders above 125 F 10 Never trap liquid R 410A in manifold sets gauge lines or cylinders R 410A expands significantly at warmer temperatures Once a cylinder or line is full of liquid any further rise in temperature will cause it to burst Manual 2100 549G Page 300459
88. se screws from both plates and set aside If the unitis equipped with a CRV or ERV you must unplug the wire harness on the left hand side of the control box A forklift or a lift rated for the load is required to lift the top section off from the bottom base Do not attempt to do this manually Failure to do so could result in the unit tipping over amp causing bodily injury and or damage to the unit The top section can be forked from either the RH or LH side See Figure 1 for fork openings Carefully lift the top section straight up avoiding tipping Move the top section through the doorway and place on flat surface free of debris The bottom base can now be moved through the doorway the same way Reassemble the unit by reversing this procedure FIGURE 2B UNIT zr LEE ERV CRV HARNESS CONNECTION gr ges zh 2 74 REQUIRED STEPS AFTER FINAL PLACEMENT compressor is secured to the base with two 2 bolts for shipping Although the unit will perform as designed with the shipping bolts in place there may be a noticeable additional noise and vibration noted To obtain the lowest noise and vibration levels remove the shipping bolts after the unit is in its final operating location To gain access to the compressor the compressor access panel must be removed Figure 9 Once this panel is removed the CRV ERV air duct must be r
89. sed in the series are wired identically internally As a result once the correct phasing is determined for a specific system or installation connecting properly phased power leads to the same Fusite terminal should maintain proper rotation direction The direction of rotation of the motor may be changed by reversing any two line connections to the unit SERVICE HINTS 1 Caution user to maintain clean air filters at all times Also not to needlessly close off supply air registers This may reduce airflow through the system which shortens equipment service life as well as increasing operating costs and noise levels 2 Switching to heating cycle at 75 F or higher outside temperature may cause a nuisance trip of the remote reset high pressure switch Turn thermostat off then on to reset the high pressure switch 3 Theheat pump wall thermostats perform multiple functions Be sure that all function switches are correctly set for the desired operating mode before trying to diagnose any reported service problems 4 Check all power fuses or circuit breakers to be sure they are the correct rating 5 Periodic cleaning of the outdoor coils to permit full and unrestricted airflow circulation is essential 6 Annual maintenance is required to make sure that all of the systems are functioning properly a Check to make sure that the drains are not Obstructed in any way b Remove any debris in the condenser section of the unit
90. st length sequence in a matter of seconds and will automatically terminate the defrost sequence There is an initiate defrost jumper sen jump on the control that can be used at any outdoor ambient during the heating cycle to simulate a 09 coil temperature This can be used to check defrost operation of the unit without waiting for the outdoor ambient to fall into the defrost region By placing a jumper across the SEN JMP terminals a inch QC terminal works best the defrost sensor mounted on the outdoor coil is shunted out amp will activate the timing circuit This permits the defrost cycle to be checked out in warmer weather conditions without the outdoor temperature having to fall into the defrost region In order to terminate the defrost test the SEN JMP jumper must be removed If left in place too long the compressor could stop due to the high pressure control opening because of high pressure condition created by operating in the cooling mode with outdoor fan off Pressure will rise fairly fast as there is likely no actual frost on the outdoor coil in this artificial test condition There is also a 5 minute compressor time delay function built into the HPC This is to protect the compressor from short cycling conditions The board s LED will have a fast blink rate when in the compressor time delay In some instances it is helpful to the service technician to override or speed up this timing period and shorting out the SPEEDUP te
91. stantly whenever the system switch on subbase is placed in position the terminal being constantly energized from R A thermostat demand for Stage 1 heat completes R Y 1 circuit pulling in compressor contactor starting compressor and outdoor motor R G also make starting indoor blower motor HEATING STAGE 2 Circuit amp Y2 makes at the thermostat energizing the 2nd stage solenoid in the compressor Manual 2100 549G Page 320f59 PRESSURE SERVICE PORTS High and low pressure service ports are installed on all units so that the system operating pressures can be Observed Pressure tables can be found later in the manual covering all models It is imperative to match the correct pressure table to the unit by model number Upper and lower service doors must be attached to Obtain proper reading LOWERING OUTDOOR FAN SPEED for SOUND Supplied in the Literature Assembly is a Fan Control Resistor Assembly that can be installed to lower the fan speed for reduced sound performance This Resistor Assembly is to be installed in series with the Outdoor Fan Control Thermistor to change the temperature curve that the fan logic control sees It is anticipated that you will see a 2 396 drop in system capacity and efficiency when this resistor is installed To install the Resistor Assembly 1 Locate Fan Control Resistor Assembly in Literature Packet hanging on right inside door of unit 2 Throw main power
92. t must be level from side to side and from front to back If adjustments are necessary shim up under the base rails with sheets of metal or any substance not affected by moisture 4 Attach the sleeve to the unit using the ten 10 34 long self tapping screws supplied with the sleeve 5 The exhaust sleeve has three 3 4 long screw slots in each side flange Line these up with the screw engagement holes in the fan panel Attach using six 6 34 long pointed sheet metal screws supplied with the sleeve Extend the sleeve out until itis flush with the louver grill attachment angles 6 Lock the sleeve in place using two 2 2 long pointed sheet metal screws on each side by shooting through the slot into a pre punched hole 7 bottom trim piece is shipped loose for installation beneath the doors Attach the trim piece to the unit with screws provided 8 Thecompressor is secured to the base with two 2 bolts for shipping Both bolts are identified with atag Remove shipping bolts Figure 5 WIRING MAIN POWER Refer to the unit rating plate and or Table 2 for wire sizing information and maximum fuse HACR Type circuit breaker size Each unit is marked with a Minimum Circuit Ampacity This means that the field wiring used must be sized to carry that amount of current Depending on the installed KW of electric heat there may be two field power circuits required If this is the case the unit serial plate will so indicat
93. terminal is the dehumidification mode on models so equipped NOTE For total and proper control using DDC a minimum of 9 controlled outputs are needed when above Electric Heat is employed with ventilation a total of 8 controlled outputs with below 10KW Electric Heat with Ventilation 7 controlled outputs below 10 Electric Heat with no ventilation 7 controlled outputs with no Electric Heat but with ventilation and 6 controlled outputs with no electric heat and no ventilation If Dehumidification Model amp Vent 10 controlled outputs are needed when above 10KW Electric Heat is employed with ventilation LOW VOLTAGE CONNECTIONS FOR DDC CONTROL Fan Only Energize G Cooling Part Load Energize G Y1 Cooling Full Load Energize Y1 Y2 HP Heating Part Load Energize G Y1 B W1 HP Heating Full Load Energize 1 Y2 B W1 HP Heating Full Load Electric Heat up to 10KW Energize G Y1 Y2 B W1 W2 Heating with Bank 1 Electric Heat Only Energize G W2 Emergency Heat Heat pump operation is negated for this condition Energize Sve W3 Ventilation Energize A Dehumidification Energize G D Models with Dehumidification Only GENERAL This unit is equipped with a variable speed ECM motor The motor is designed to maintain rated airflow up to the maximum static allowed It is important that the blower motor plugs are not plugged in or unplugged while the power is on Failure to remove pow
94. the Defrost Logic Control and subsequently connects to 24V AC Common through the Fan Logic Control Board Yellow Wire connects to on the Fan Logic Control Board White Wire connects to W on the Fan Logic Control Board Orange Wire connects to on the Fan Logic Control Board NOTE A combination of the Yellow White and Orange wires being energized with 24V R signal determines five 5 different speeds the fan motor will operate at The Fan Logic Control Board uses an outdoor thermistor sensor to determine the speed the fan should operate It also utilizes the reversing valve input for heat pump mode to determine speed should operate TABLE 7 TROUBLESHOOTING ECM 1428 OUTDOOR FAN MOTOR Check between Red and Black Wires for Line Power Check Line Power to Motor Verify Ground by checking Green Wire to L1 and L2 Line Power Check BR terminal of Fan Logic Control Board Check Blue Fan Lead on Fan Relay Terminal of Defrost Logic Control Check for 24VAC common signal to motor against Transformer R Signal s not energized in cooling mode until Low Ambient Fan Cycling Control is closed by 325 PSIG refrigerant pressure Circuit is completed automatically when B is energized on the Fan Logic Control Board Check 24VAC hot outputs to Blue on Fan Logic Control to motor See the following tables based upon outdoor temperature and model of operation
95. the design criteria and determine which speed wire color is needed Perform the following steps 1 Open front swinging doors of main unit by popping front door latches 2 Throw main power disconnect to the OFF position to eliminate risk of injury or death due to electrical shock 3 Remove six 6 screws holding front CRV door in place see Figure 22 4 For CRV blower speed locate Brown Wire with White Trace that has as black terminal on the end where it connects to the terminal strip see Figure 24 5 Move the Brown Wire with White Trace to the corresponding CFM level needed in accordance with Figure 24 6 For Economizer Blower Speed locate Pink Wire that has a black terminal on the end where it connects to the terminal strip see Figure 24 7 Move the Pink to the corresponding CFM level needed in accordance with Figure 24 Manual 2100 549G Page 37 of 59 1 ECON SEQUENCE OPERATION If outdoor temperature is below outdoor thermostat setpoint On call from CompleteStat for first stage cooling YO thermostat signal powers vent blower motors at Economizer Speed Airflow black 525 CFM through NC contacts of Relay R1 Dehum Relay On call from CompleteStat for first and second stage cooling YO thermostat signal powers vent blower motors at Economizer Speed Airflow black 525 through NC contacts of Relay R1 Dehum Relay e Y1
96. to oscillate up and down You must obtain the correct replacement motor from the manufacturer that is a direct replacement for the failed motor USING THE WRONG MOTOR VOIDS ALL WARRANTIES AND MAY PRODUCE UNEXPECTED RESULTS c The Bard I TEC is equipped with a low ambient control pressure switch This pressure switch completes the 24V AC Common feed to the outdoor fan motor control in cooling mode If this switch 1s defective or if the outdoor air temperature is too cold to raise the head pressure to the 3254 switch closing set point or the system charge is too low this could be the cause of the issue In heat pump heating mode the low ambient fan cycling control is bypassed d If motor is not running go to next section If the motor does not appear to be running at the proper speed or does not shut off refer to the next section for voltage checks to determine if the motor 18 getting the proper input signals If the motor IS NOT receiving any communication troubleshoot the communication issue using the diagnostic table for the Fan Logic Control a This motor uses a 7 wire harness to control the motor Manual 2100 549G Page 53 of 59 TROUBLESHOOTING ECM 1428 OUTDOOR FAN MOTOR Line power is connected as follows Red Wire connects to L1 Black Wire connects to 1 2 Green Yellow Wire connects to Ground Control power is connected as follows Blue Wire connects to Fan Relay of
97. tor plug can be inserted into the socket in the control Carefully insert the plug and press it into the socket until itlatches A SLIGHT CLICK WILL BE HEARD WHEN PROPERLY INSERTED 8 Reverse the steps 5 4 3 to reconnect the motor control to the motor wires securing the motor control cover plate mounting the control to the bracket and mounting the motor control bracket back into the uni MAKE SURE THE ORIENTATION YOU SELECT FOR REPLACING THE CONTROL ASSURES THE CONTROL S CABLE CONNECTORS WILL BE LOCATED DOWNWARD IN THE APPLICATION SO THAT WATER CANNOT RUN DOWN THE CABLES AND INTO THE CONTROL DO NOT OVERTIGHTEN THE BOLTS 9 Plug the 16 pin control plug into the motor The plug is keyed Make sure the connector is properly seated and latched 10 Plug the 5 pin power connector into the motor Even though the plug is keyed OBSERVE THE PROPER ORIENTATION DO NOT FORCE THE CONNECTOR It plugs in very easily when properly oriented REVERSING THIS PLUG WILL CAUSE IMMEDIATE FAILURE OF THE CONTROL MODULE 11 Final installation check Make sure the motor is installed as follows a Motor connectors should be oriented between the 4 o clock and 8 o clock positions when the control is positioned in its final location and orientation b Add a drip loop to the cables so that water cannot enter the motor by draining down the cables Refer to Figure 32 The installation is now complete Reapply the AC power to the HVAC equipment and verify that t
98. without Occupance Signal is used A Additional wire required for dehumidification models MIS 3019 Manual 2100 549G 260459 FIGURE 17 PUMP WITH CONTROL ON OFF CYCLING Completestat 60 60 Model CS9B THO or me Model 59 t 3 02 22 9 8403 060 thermostat must be 0 9 09 09 09 69 OW 69 operation mode and in programmed fan mode for ventilation to function PAN Low O 09 0 6 9 2 69 09 00 5 9 Term Strip 15 1 T T3 TT T 1 1 E a MN i a L E En LU 285212 EM E R RED WHITE BLACK WHITE i ORANGE A L EEE 5 BROWNAWHITE PURPLE 5 1 6 ERV Wiring Harness 8403 067 Factory installed jumper Remove jumper and connect Connect to G terminal when thermostat has Occupancy Signal to N C fire alarm circuit if emergency shutdown required Install a jumper between G and A only when thermostat Notneeded below 15KW

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