Page 2 - CONTENTS
Manual 2100-549GPage 2 of 59 CONTENTS Getting Other Information and Publications For more information, contact these publishers: .......... 3General & ANSI Z535.5 Definitions ............................. 4 I-TEC General Information I-TEC Model Nomenclature .........................................
Page 3 - GETTING OTHER INFORMATION AND PUBLICATIONS; Manual N
Manual 2100-549G Page 3 of 59 GETTING OTHER INFORMATION AND PUBLICATIONS These publications can help you install the airconditioner or heat pump. You can usually find these atyour local library or purchase them directly from thepublisher. Be sure to consult current edition of eachstandard. National ...
Page 4 - GENERAL; [this header is] preferred to address practices
Manual 2100-549GPage 4 of 59 GENERAL The equipment covered in this manual is to be installedby trained, experienced service and installationtechnicians. The I-TEC must be installed with the Bardmanufactured IWS wall sleeve and ILG louvergrille accessories. These are sold as separateaccessories. Any ...
Page 5 - TABLE 1; I-TEC Series General Information; I-TEC MODEL NOMENCLATURE; TABLE 1A
Manual 2100-549G Page 5 of 59 TABLE 1 FACTORY BUILT-IN ELECTRIC HEAT TABLE s l e d o M A - 1 H 0 3 I B - 1 H 0 3 I C - 1 H 0 3 I A - 1 H 6 3 I A - 1 H 2 4 I B - 1 H 6 3 I B - 1 H 2 4 I C - 1 H 6 3 I C - 1 H 2 4 I A - 1 H 8 4 I B - 1 H 8 4 I B - 1 H 0 6 I C - 1 H 8 4 I C - 1 H 0 6 I A - 1 H 0 6 I W K...
Page 7 - Unit Specification Sheet; MIS; FIGURE 1
Manual 2100-549G Page 7 of 59 3 3 4 " 24 1 2 " 22 1 4 " Low er Sec tion 71 3 4 " U pper Sec tion Sl eev e Inner Re tu rn Sl eev e Outer Sl eev e Inner Ai r Re tu rn Sl eev e Outer Ai r Suppl y Ai r (2 ) Opt. Un it Dra in Entr ances " 8 3 1 8" 3 1 8 " H igh Vol tage Entr a...
Page 8 - A forklift or a lift rated for the load is required to lift; WARNING; FIGURE 2A — UNIT ON LIFT
Manual 2100-549GPage 8 of 59 SHIPPING DAMAGE Upon receipt of equipment, the unit should be checkedfor external signs of shipping damage. The skid mustremain attached until the unit is ready for installation. Ifdamage is found, the receiving party must contact thelast carrier immediately, preferably ...
Page 9 - REQUIRED STEPS AFTER FINAL PLACEMENT; pull; MINIMUM INSTALLATION HEIGHT; BRACKET SECTION; SEISMIC CONSIDERATIONS; WALL MOUNTING BRACKET LOCATION
Manual 2100-549G Page 9 of 59 REQUIRED STEPS AFTER FINAL PLACEMENT The compressor is secured to the base with two (2) boltsfor shipping. Although the unit will perform asdesigned with the shipping bolts in place, there may be anoticeable additional noise and vibration noted. Toobtain the lowest nois...
Page 10 - Right Side View; BRACKET WALL SECTION VIEW
Manual 2100-549GPage 10 of 59 7 3/8 18 3/4 17.5" 35" Front (Wall Only) View Right Side View CL CL MIS-2918 C Wall Unit Outside Grille Telescoping Duct Wall Sleeve** Floor Ceiling Optional Optional Trim or Supply Duct Box 31" Min. 34" Max. Room Floor Level Outside (4) optional Unit Mo...
Page 11 - CENTER OF GRAVITY; FIGURE 3
Manual 2100-549G Page 11 of 59 "Y" "X" "Z" MIS-3269 CENTER OF GRAVITY D E T S E T T I N U T I N U F O T N O R F R E T N E C O T R O O D E D I S T F E L R E T N E C O T R E T N E C O T R O O L F V R E & V R C R E T N E C O T R O O L F T N E V O N n o i s n e m i D " X ...
Page 13 - FIGURE 5
Manual 2100-549G Page 13 of 59 FIGURE 5 COMPRESSOR SHIPPING BOLTS FIGURE 6 REMOVAL OF AIR DUCT É É COMPRESSOR SHIPPING BOLT COMPRESSOR SHIPPING BOLT CRV / ERV AIR DUCT
Page 15 - FIGURE 7B
Manual 2100-549G Page 15 of 59 9'-5" MIN IMU M REQUI R ED INS T A LLA TION HEI G HT CLEARANCE RECOM M E NDED TO B OTTOM OF ROOF 9'-10" MINIMUM OR FIX E D C E ILIN G 3 " RI SER FI ELD SUPPLI E D DUCT TURNI NG VANES RECOM M E NDED 12" MIN IMU M 4" MINIMUM FROM TOP OF UNIT TO DUCT B...
Page 16 - FIGURE 7C
Manual 2100-549GPage 16 of 59 10'-1" MINIMUM CLE A RA NCE RE COMME NDE D TO B OTTOM OF ROOF OR FIX E D CE ILING 6" RIS E R 9'-8" MINIMUM RE QUIRE D INS TA LLA TION HE IGHT B OTTOM OF ROOF FLOOR OR FIX E D CE ILING SU SPEN D ED CE ILING MINIMUM 20" 7'-9 3/4" UNIT HE IGHT FIE LD S ...
Page 17 - DUCT WORK; NOTE: Unit cabinet, supply air duct and duct free; FIGURE 8
Manual 2100-549G Page 17 of 59 DUCT WORK Any heat pump is more critical of proper operatingcharge and an adequate duct system than a straight airconditioning unit. All duct work must be properly sizedfor the design airflow requirement of the equipment.Air Conditioning Contractors of America (ACCA) i...
Page 18 - CONDENSATE DRAIN; If the drain line; WITH NO VENT OPTION; FIGURE 10 — DRAIN LOCATIONS
Manual 2100-549GPage 18 of 59 (2)OPTIONALDRAIN HOLES OPTIONAL FLOORMOUNTING HOLES 18 3/4" WALL 35" " 4 3 40 7 3/16" 16 1/2" Entrances Unit Drain (2) Unit Drains (2) Optional Drain AccessLocations 3 " 8 3 8" 3 38 " MIS-2960 B CONDENSATE DRAIN There are two condensate d...
Page 19 - UNIT MOUNTING
Manual 2100-549G Page 19 of 59 (6) 5/16" - 3/4" NON-TAPPING (4) 5/16" - 1/2" NON-TAPPING (16) 5/16" - 3/4" SELF TAPPING REF. D REF. A AND B REF. C B C REF. REF. A REF. REF. D MIS-3014 outer sleeve. IMPORTANT! to not damage gasketing material. IMPORTANT! entire perimeter seam ...
Page 21 - INSTALLATION INSTRUCTIONS; MOUNTING THE UNIT; THESE INSTRUCTIONS MUST BE; START UP; ” section for information on three phase; COMPONENT LOCATION
Manual 2100-549G Page 21 of 59 INSTALLATION INSTRUCTIONS MOUNTING THE UNIT The wall sleeve is attached to the I-TEC unit from theoutside of the building. See Figures 11A & 11B. Referto wall sleeve Manual 2100-562 supplied with sleeve. Following are the steps for attaching the I-TEC to thewall sl...
Page 22 - TABLE 3 — OPERATING VOLTAGE RANGE; The voltage should be measured at the field power; WIRING – LOW VOLTAGE WIRING; output; It is important that the; TABLE 4 — WALL THERMOSTATS; CAUTION
Manual 2100-549GPage 22 of 59 The standard unit includes a remote thermostat connectionterminal strip. See Figures 13 through 19 for connectiondiagrams. Compatible thermostats are listed in Table 4. TABLE 3 — OPERATING VOLTAGE RANGE NOTE: The voltage should be measured at the field power connection ...
Page 23 - BASIC HEAT PUMP WITH NO VENTILATION PACKAGE
Manual 2100-549G Page 23 of 59 FIGURE 13 BASIC HEAT PUMP WITH NO VENTILATION PACKAGE 6 4 W3 A D L B/W1 Y2 Y1 RT G C W2 LowVoltageTerm. Strip R 3 SC W1/E A D L O/B Y2 Y1 24V G COM W2 CompletestatModel #CS9B-THO orModel #CS9BE-THO SC SC Thermostat W1/E A YO/D L O/B Y2 Y1 R G C W2 Bard #8403-060 MIS-30...
Page 25 - HEAT PUMP WITH CRV AND CO
Manual 2100-549G Page 25 of 59 FIGURE 15 HEAT PUMP WITH CRV AND CO 2 CONTROL SC W1/E A D L O/B Y2 Y1 24V G COM W2 CompletestatModel #CS9B-THO orModel #CS9BE-THO SC SC 5 2 1 6 Thermostat W1/E A YO/D L O/B Y2 Y1 R G C W2 Bard #8403-060 3 Low MIS-3018 3 1 Additional wire required for dehumidification m...
Page 27 - HEAT PUMP WITH ERV AND CO
Manual 2100-549G Page 27 of 59 FIGURE 17 HEAT PUMP WITH ERV AND CO 2 CONTROL (ON/OFF CYCLING) SC W1/E A D L O/B Y2 Y1 24V G COM W2 CompletestatModel #CS9B-THO orModel #CS9BE-THO SC SC Thermostat W1/E A YO/D L O/B Y2 Y1 R G C W2 Bard #8403-060 PINK 6 1 Additional wire required for dehumidification mo...
Page 29 - HEAT PUMP WITH COMBINATION CRV AND DB ECONOMIZER (“N” VENT CODE)
Manual 2100-549G Page 29 of 59 Y1 R CRV/ECON Wiring Harness BROWN/WHITE 8 W3 1 RT 24V A 1 B/W1 GRAY D to N.C fire alarm circuit if emergency shutdown required. COM Factory installed jumper. Remove jumper and connect 3 Additional wire required for dehumidification models. 4 PURPLE/WHITE C G Model #CS...
Page 30 - TOPPING OFF SYSTEM CHARGE
Manual 2100-549GPage 30 of 59 START UP THESE UNITS REQUIRE R-410AREFRIGERANT AND POLYOLESTER 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/...
Page 31 - IMPORTANT INSTALLER NOTE
Manual 2100-549G Page 31 of 59 START UP DESCRIPTION OF STANDARDEQUIPMENT Solid State Electronic Heat Pump Control Provides efficient 30, 60 or 90-minute defrost cycle. A thermistor sensor and speed up terminal for servicealong with a 8-minute defrost override a re standard on the electronic heat pum...
Page 32 - SEQUENCE OF OPERATION; COOLING PART LOAD; – Circuit R-Y1 makes at; COOLING FULL LOAD; – A 24V solenoid coil on; HEATING STAGE 2; PRESSURE SERVICE PORTS; To install the Resistor Assembly:
Manual 2100-549GPage 32 of 59 SEQUENCE OF OPERATION COOLING PART LOAD – Circuit R-Y1 makes at thermostat pulling in compressor contactor, starting thecompressor and outdoor motor. The G (indoor motor)circuit is automatically completed on any call forcooling operation or can be energized by manual fa...
Page 33 - SPEEDUP; SEN JMP; jumper must be removed; SPEEDUP; DEFROST CYCLE
Manual 2100-549G Page 33 of 59 DEFROST CYCLE The defrost cycle is controlled by temperature and timeon the solid state heat pump contr ol. See Figure 20. When the outdoor temperature is in the lower 40°Ftemperature range or colder, the outdoor coil temperatureis 32°F or below. This coil temperature ...
Page 35 - CRV MOTOR SPEED/CFM CONFIGURATION; OTOR SPEEDS; BLACK
Manual 2100-549G Page 35 of 59 FIGURE 21 CRV MOTOR SPEED/CFM CONFIGURATION MED. HI 7961-7554 M OTOR SPEEDS LO MED. LO HI ORANGE VENT OPTION INTAKE/EXHAUST SPEEDS BROWN/WHITE BLACK BLUE ORANGE NOM. CFM BLACK BLUE WIRE COLOR SPEED RED WIRE WITH WHITE TRACE. 300 375 450 525 LO MED-LO MED-HI HI RED Move...
Page 36 - CRV SPEED CHANGE TERMINAL ACCESS
Manual 2100-549GPage 36 of 59 FIGURE 22 CRV SPEED CHANGE TERMINAL ACCESS REMOVE (5) SCREWS FROMCRV DOOR TO ACCESS CRVCOMPONENTS MIS-3023 CRV INTAKE BLOWERNOTE: CRV EXHAUSTBLOWER IS BEHINDINTAKE BLOWER BLOWER SPEED CONTROL LOCATION BLOWER SPEEDCONTROL BLOWER REMOVEDFOR CLARITY
Page 37 - ECONOMIZER VENTILATION SYSTEM; Operating the
Manual 2100-549G Page 37 of 59 I-TEC COMBINATION CRV & ECONOMIZER VENTILATION SYSTEM DESCRIPTION The I-TEC combination Commercial Room Ventilator(CRV) and Dry Bulb Economizer is designed to be usedwith all Bard I-TEC models. This ventilation packageand its control provides two (2) roles: • It wi...
Page 38 - ECON. SEQUENCE OF OPERATION; On call from CompleteStat for first stage cooling:; Dehumidification Mode; On call from CompleteStat for dehumidification:
Manual 2100-549GPage 38 of 59 7 NC 7 D R2 6 Y2 NO R3 COM NO 3 R4 ECON VENT SPEED YO A FACTORY WIRE A R1 D 6 G R Y2 8 Y1 C Y1 R4 R2 R1 R3 4 COM R2 7 1 R2 5 8 COM R2 R1 = DEHUM RELAYR2 = HIGH AMBIENT RELAYR3 = FULL LOAD RELAYR4 = BLOWER INTERLOCK RELAY FIELD WIRE CRV VENT SPEED MIS-3272 UNIT LOW VOLTA...
Page 39 - HEATING MODE OPERATION; MOTOR SPEED/CFM CONFIGURATION
Manual 2100-549G Page 39 of 59 MED. HI 7961-7554 M OTOR SPEEDS LO MED. LO HI 375 VENT OPTION INTAKE/EXHAUST SPEEDS BROWN/WHITE BLACK BLUE ORANGE RED HI BLACK BLUE SPEED NOM. CFM RED WIRE WITH WHITE TRACE. 300 WIRE COLOR 450 525 LO MED-LO MED-HI ORANGE Move brown/white wire to corresponding motorspee...
Page 40 - The indoor blower must be run whenever the I-TEC
Manual 2100-549GPage 40 of 59 I-TEC ENERGY RECOVERY VENTILATOR SYSTEM GENERAL DESCRIPTION The I-TEC Energy Recovery Ventilator (ERV) wasdesigned to provide energy efficient, cost effectiveventilation to meet I.A.Q (Indoor Air Quality)requirements while still maintaining good indoorcomfort and humidi...
Page 41 - RECOMMENDED CONTROL SEQUENCES; CHANGING TO FULLY MODULATING MODE
Manual 2100-549G Page 41 of 59 RECOMMENDED CONTROL SEQUENCES Several possible scenarios are listed below: 1. Use a programmable electronic thermostat with auxiliary terminal to control the ERV based ondaily programmed occupance periods. Bardmarkets and recommends Bard Part #8403-060programmable elec...
Page 42 - Note: All performance data is based on; WINTER HEATING PERFORMANCE; PERFORMANCE AND APPLICATION DATA; SUMMER COOLING PERFORMANCE
Manual 2100-549GPage 42 of 59 LEGEND: VLT = Ventilation Load – Total VLS = Ventilation Load – Sensible VLL = Ventilation Load – Latent HRT = Heat Recovery – Total HRS = Heat Recovery – Sensible HRL = Heat Recovery – Latent WVL = Winter Ventilation Load WHR = Winter Heat Recovery Note: All performanc...
Page 43 - ERV “MANUAL MODE” JUMPER PIN ON “M” TERMINAL
Manual 2100-549G Page 43 of 59 FIGURE 25A ERV “MANUAL MODE” JUMPER PIN ON “M” TERMINAL FIGURE 25B ERV “MODULATING MODE” JUMPER PIN ON “P” TERMINAL ERV CFM FLOW INDEX (Light Blink Code) 450 100 425 89 400 83 375 76 350 59 325 50 300 40 275 32 250 25 225 12 200 9 175 4 150 1 To adjust the airflow vent...
Page 44 - VENTILATION AIRFLOW DIAGRAM; Return Air
Manual 2100-549GPage 44 of 59 FIGURE 26 VENTILATION AIRFLOW DIAGRAM EXHAUST Return Air Indoor Air VENT Outdoor Air BLOWER BLOWER INTAKE Supply Air VENT SUPPLYBLOWER MIS-3024
Page 45 - ERV ACCESS
Manual 2100-549G Page 45 of 59 FIGURE 27 ERV ACCESS ERV DOOR TO ACCESS ERVCOMPONENTS ASSEMBLIES REMOVE (5) SCREWS FROM PANEL LOCATION MIS-3025 ERV CONTROL ERV CASSETTE NOTE: ERVEXHAUSTBLOWER ISBEHIND INTAKEBLOWER ERV INTAKEBLOWER
Page 46 - CONTROL BOARD CONFIGURATION/SETTING; CONTROL for ERV MODULATING; Carbon Dioxide and Temperature Transmitters; SPECIFICATIONS; CO; Temperature Dependence:
Manual 2100-549GPage 46 of 59 FIGURE 28 CONTROL BOARD CONFIGURATION/SETTING CONFIGURING BARD PART #8403-067CO 2 CONTROL for ERV MODULATING CONTROL BARD PART #8403-067 Carbon Dioxide and Temperature Transmitters accurately monitorthe CO2concentration andtemperature in schools, office buildings, and o...
Page 47 - C V; to; MENU; CURRENT/VOLTAGE OUTPUT
Manual 2100-549G Page 47 of 59 CONFIGURING BARD PART #8403-067CO 2 CONTROL for ERV 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...
Page 48 - MENU DESCRIPTIONS
Manual 2100-549GPage 48 of 59 MENU DESCRIPTIONS RON Relay on set pointSets the CO 2 concentration which the optional relay is energized.Low limit: 0 PPMFactory setting: 1000 PPMHigh limit: 2000/5000 PPM (depending on model) ROF Relay off set pointSets the CO 2 concentration which the optional relay ...
Page 49 - GENERAL INFORMATION; NOTE: Local conditions can vary and affect the required time; QUARTERLY MAINTENANCE; NOTE: Discoloration and staining of the wheel
Manual 2100-549G Page 49 of 59 ENERGY RECOVERY VENTILATORMAINTENANCE GENERAL INFORMATION The ability to clean exposed surfaces within air movingsystems is an important design consideration for themaintenance of system performance and air quality.The need for periodic cleaning will be a function ofop...
Page 50 - ANNUAL MAINTENANCE; NOTE: Do not use acid based cleaners, aromatic
Manual 2100-549GPage 50 of 59 FIGURE 29 ANNUAL MAINTENANCE 1. Inspect and conduct the same procedures asoutlined under Quarterly Maintenance. 2. To maintain peak latent (moisture) removal capac-ity, it is recommended that the energy recoverywheels be sprayed with a diluted nonacid basedevaporator co...
Page 51 - TROUBLESHOOTING; A thorough understanding of the defrost; CODES
Manual 2100-549G Page 51 of 59 TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROLTROUBLESHOOTING PROCEDURE 1. NOTE: A thorough understanding of the defrost cycle sequence is essential. Review that sectionearlier in this manual prior to troubleshooting thecontrol. Turn on AC power supply to unit. 2. Turn ...
Page 52 - CHECKING TEMPERATURE SENSOR; Disconnect temperature sensor from board and from; TABLE 6
Manual 2100-549GPage 52 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 oropen. 3. Check resistance reading to chart of resistance use sen...
Page 53 - TROUBLESHOOTING ECMTM 142R OUTDOOR FAN MOTOR; In normal operation, this motor may rock back and
Manual 2100-549G Page 53 of 59 TROUBLESHOOTING ECM™ 142R OUTDOOR FAN MOTOR You must obtain the correct replacementmotor from the manufacturer that is a directreplacement for the failed motor. USING THE WRONG MOTOR VOIDS ALLWARRANTIES AND MAY PRODUCEUNEXPECTED RESULTS. Do not operate motor without fa...
Page 54 - • Line power is connected as follows:; is; REPLACING THE MOTOR
Manual 2100-549GPage 54 of 59 TROUBLESHOOTING ECM™ 142R OUTDOOR FAN MOTOR • Line power is connected as follows: “Red Wire” connects to “L1”“Black Wire” connects to “L2”“Green/Yellow Wire” connects to “Ground” • Control power is connected as follows: “Blue Wire” connects to Fan Relay of theDefrost Lo...
Page 55 - TROUBLESHOOTING INDOOR ECMTM BLOWER MOTORS
Manual 2100-549G Page 55 of 59 TROUBLESHOOTING INDOOR ECM™ BLOWER MOTORS CAUTION: Disconnect power from unit before removing or replacingconnectors, or servicing motor. To avoid electric shockfrom the motor’s capacitors, disconnect power and wait atleast 5 minutes before opening motor. Symptom Cause...
Page 56 - Replacing ECM Control Module
Manual 2100-549GPage 56 of 59 TROUBLESHOOTING INDOOR ECM™ BLOWER MOTORS (Cont’d.) Replacing ECM Control Module To replace the control module for the GE variable-speed indoor blowermotor you need to take the following steps: 1. You MUST have the correct replacement module. The controls are factory pr...
Page 57 - FAN BLADE SETTING DIMENSIONS; CONTROL CONNECTOR MOTOR HALF; TROUBLESHOOTING ECMTM BLOWER MOTORS
Manual 2100-549G Page 57 of 59 FAN BLADE SETTING DIMENSIONS The position of the fan blade should be flush with theleaving face of the orifice plate. Check to make sure theblades do not extend beyond the rear casing of the unit.Spin the blade by hand to make sure it does not hit thering. REFRIGERANT ...
Page 59 - PART LOAD COOLING PRESSURE/TEMPERATURE
Manual 2100-549G Page 59 of 59 TABLE 11A PART LOAD COOLING PRESSURE/TEMPERATURE L E D O M N R U T E R R I A . P M E T E R U S S E R P F ° L I O C R O O D T U O G N I R E T N E E R U T A R E P M E T R I A 5 5 0 6 5 6 0 7 5 7 0 8 5 8 0 9 5 9 0 0 1 5 0 1 0 1 1 5 1 1 0 2 1 5 2 1 1 H 0 3 I B D 5 7 B W 2 ...
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