Page 1: Table Of Contents
• COOLING • HEATING (Heat Pump Units Only) VAV Unit Start-Up ....... 42 •...
Page 2: General
• LEDs are provided for diagnostic purposes. Variable Air Volume (VAV) Units — W, and X units come equipped with a Carrier 6400 Comfort Controller and a VFD. Refer to the 50BV,XJ Controls, Opera- tion and Troubleshooting manual for details.
Page 3: Installation
INSTALLATION Omnizone™ 50BV units are intended for indoor installa- tion only. Determine building alterations required to run piping, wiring, and ductwork. Read all installation instructions before installing the unit. Step 1 — Complete Pre-Installation Checks EXAMINE THE UNIT — Examine the unit for shipping damage.
Page 4 NOTES: 1. Dimensions in inches [mm]. 2. VAV models (50BVJ) are rear return, top supply only. 3. Compressor, controls, and condenser access are through front panels. 4. Field power connections are 1-3/4 inches. Control connections are 7/8 inches. 5. Optional blower orientation is selected in model number nomenclature as option 9 in FIOP section (digits 15 and 16).
Page 5 NOTES: 1. Dimensions in inches [mm]. 2. VAV models (50BVK) are rear return, top supply only. 3. Compressor, controls, and condenser access are through front panels. 4. Field power connections are 1-3/4 inches. Control connections are 7/8 inches. 5. Discharge (hot gas) connections are 1-1/8 in. OD. 6.
Page 6 69.50 SHIPPING SECTION 2.00 65.50 BLOWER SECTION ACCESS 54.75 COMPRESSOR ACCESS LIFTING SUPPORT RAIL REAR VIEW RETURN AIR VIEW 9.88 49.75 21.75 23.75 18.75 EVAPORATOR EVAPORATOR ACCESS ACCESS ELECTRICAL BOX ELECTRICAL BOX COMPRESSOR ACCESS ACCESS 1.50 FRONT VIEW NOTES: 1. Dimensions in inches. 2.
Page 7 CONNECTIONS WATER OUT 2-1/2 in. FPT WATER IN 2-1/2 in. FPT CONDENSATE DRAIN 1-1/4 in. FPT ECONOMIZER DRAIN 1-1/4 in. FPT REPLACEMENT FILTERS : EIGHT (8) AT 17 x 27 x 4 INCHES. NOTES: 1. Dimensions in inches. 2. All units are rear return airflow configuration. 3.
Page 8 69.50 SHIPPING SECTION SHIPPING SECTION 2.00 4.00 65.50 BLOWER BLOWER SECTION SECTION ACCESS ACCESS COMPRESSOR COMPRESSOR ACCESS ACCESS REAR VIEW RETURN AIR VIEW 19.75 9.88 49.75 21.75 EVAPORATOR EVAPORATOR EVAPORATOR ACCESS ACCESS ACCESS ELECTRICAL BOX ELECTRICAL BOX ELECTRICAL BOX COMPRESSOR ELECTRICAL BOX ACCESS ACCESS...
Page 9 NOTES: 1. Dimensions in inches. 2. All units are rear return airflow configuration. 3. Recommended minimum service clearances are as follows: Front and rear — 30 in. (762 mm) Left and right sides — 65 in. (1651 mm) for coil removal CONNECTIONS UNIT SIZE WATER OUT...
Page 10 5. Recommended condenser match is ONE (1) 09DK034 (50/50 split). 6. Use proper piping practice for remote refrigerant connections. Refer to Carrier System Design Manual Part 3. 7. Recommended minimum service clearances are as follows: Front and rear — 30 in. (762 mm) Left or right side —...
Page 11 3. Recommended condenser match is ONE (1) 09DK034 (50/50 split). 4. Use proper piping practice for remote refrigerant connections. Refer to Carrier System Design Manual Part 3. 5. Recommended minimum service clearances are as follows: Front and rear — 30 in. (762 mm) Left or right side —...
Page 12 4. VAV units (50BVX) are available with rear supply only. 5. Use proper piping practice for remote refrigerant connections. Refer to Carrier System Design Manual Part 3. 6. Recommended minimum service clearances are as follows: Front and rear — 30 in. (762 mm) Left and right sides —...
Page 13 2. All units are rear return airflow configuration. 3. Use proper piping practice for remote refrigerant connections. Refer to Carrier System Design Manual Part 3. 4. Recommended minimum service clearances are as follows: Front and rear — 30 in. (762 mm) Left and right sides —...
Page 14 NOTES: 1. Dimensions in inches [mm]. 2. Refer to base unit certified drawing for additional unit dimensions, service clearance, and alternate airflow configurations. a50-7306ef Fig. 12 — 50BVC,J,Q020-028 with Optional Waterside Economizer Dimensions...
Page 15 NOTES: 1. Dimensions in inches [mm]. 2. Refer to base unit certified drawing for additional unit dimensions, service clearances, and alternate airflow configurations. a50-7307ef Fig. 13 — 50BVC,J,Q034 with Optional Waterside Economizer Dimensions...
Page 16 a50-8235 Size 034 Units 50BVT,U,V,W,X UNIT MAIN AIR CONDITIONING SECTION (EACH) NUMBER OF SECTIONS SECTION WEIGHT REHEAT COIL OPTION FILTER/ECONOMIZER SECTION (EACH) NUMBER OF SECTIONS FILTER SECTION ECONOMIZER OPTION FAN SECTION (EACH) NUMBER OF SECTIONS FAN SECTION TOTAL UNIT NUMBER OF SECTIONS UNIT WITH OPTIONS *High-boy/low-boy.
Page 17 UNIT 50BVC,E,J,K,Q NOMINAL CAPACITY (Tons) OPERATING WEIGHT (lb) 50BVC,Q…50BVJ 50BVE…50BVK COMPRESSOR Quantity Number of Refrigerant Circuits Oil (ounces) Ckt 1…Ckt 2 REFRIGERANT TYPE Expansion Device Operating Charge (lb) Ckt 1…Ckt 2 CONDENSER (50BVC,Q,J only) Quantity of Manifolded Circuits Nominal Flow Rate (GPM) Water Flow Range (GPM) Max.
Page 18 Table 3B — Physical Data — 50BVT,U,V,W,X UNIT 50BVT,U,V,W,X NOMINAL CAPACITY (Tons) OPERATING WEIGHT (lb) 50BVT,V…50BVW 50BVU…50BVX COMPRESSOR Quantity Number of Refrigerant Circuits Oil (oz.) Circuit 1…Circuit 2 Circuit 3…Circuit 4 REFRIGERANT TYPE Expansion Device Operating Charge (lb) Circuit 1…Circuit 2 Circuit 3…Circuit 4 CONDENSER (50BVT,V,W only) Quantity of Manifolded Circuits...
Page 19: Assembling Modular Units
Step 3 — Install Ductwork — use a “pair of pants” configuration as shown in Fig. 15. Refer to the Carrier System Design Manual or ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engi- neers) standards for the recommended duct connection to unit with 2 fans.
Page 20: Duct Static Pressure Probe And Tubing
acceptable system static pressure. If the existing duct system is too small, larger ductwork must be installed. The duct system and diffusers should be sized to handle the design airflow volumes quietly. To maximize sound attenuation of the unit's blower(s), the supply and return air plenums should be insulated for a length of at least 15 ft from the unit.
Page 21: Step 4 - Make Piping Connections
50 F while operating in the reverse cycle heating mode (heat pump units only). Refer to Table 4, which lists freezing points of glycol at different concentrations. A minimum concentration of 20% is recommended.
Page 22 Table 5A — Condenser Pressure Drop 50BVC,J,Q Units SIZE 020 SIZE 024 FLOW RATE (gpm) Pressure Drop (ft wg) — 11.2 13.5 15.9 18.4 10.9 21.1 12.8 23.9 14.8 27.4 17.0 — 19.3 — 21.7 — — — — — —...
Page 23 Table 6A — Hot Water Pressure Drop 50BVC,E,J,K,Q Units SIZE 020 SIZE 024 FLOW RATE (gpm) Pressure Drop (ft wg) 10.2 10.2 12.9 12.9 15.8 15.8 — — — — — — LEGEND GPM — Flow Rate — Pressure Drop (ft wg) Table 6B —...
Page 24: Remote Refrigerant Piping
It is important that the condenser cir- cuiting be properly matched to the 50BV unit circuiting. Other- wise, unsatisfactory operation will result. Carrier will not be responsible for improperly matched remote condenser selec- tions. Recommended condenser matches are shown in Table 8.
Page 25: Power Wiring
For an unbalanced 3-phase supply voltage, use the follow- ing formula to determine the percent of voltage imbalance: Percent Voltage Imbalance max voltage deviation from average voltage = 100 x average voltage Example: Supply voltage is 460-3-60. AB = 452 V BC = 464 V AC = 455 V Average Voltage =...
Page 26 Table 9B — Electrical Data — 50BVT,U,V,W,X VOLTAGE NOMINAL RANGE UNIT SIZE VOLTAGE 50BVT,U,V,W,X (3 Ph, 60 Hz) 208/230 208/230 208/230 208/230 LEGEND — Full Load Amps — Horsepower MOCP — Maximum Overcurrent Protection — Locked Rotor Amps COMPRESSOR INDOOR FAN MOTOR No.
Page 27: Remote Condenser Fan Contactor Wiring
Indoor Fan Contactor Select an appropriate commercial thermostat that has 2 stag- es of cooling control. If the unit is a heat pump, make sure the thermostat is capable of heat pump control. Any of the Debonair® series commercial thermostats will meet the re- quirements, and are available in a variety of attractive styles, in programmable and non-programmable versions.
Page 28 UNIT MODULE ‘A’ LEGEND FC — Fan Contactor PR — Pilot Relay Fig. 25 — Typical Wiring 40 to 60 Ton Units (Two-Stage Cooling) Table 10 — Recommended Cables MANUFACTURER Alpha American Belden Columbia NOTE: Conductors and drain wire must be at least 20 AWG (American Wire Gage), stranded, and tinned copper.
Page 29: Supply Air Temperature Sensor (Sat)
PCB1 TRANS-1 a50-7275ef CSMUX Fig. 27 — Modular Unit VAV Control Panel TRANS-1 a39-1867t PCB1 Fig. 29 — Supply/Return Air Temperature Sensor (P/N HH79NZ043) a50-7276ef Fig. 28 — Single-Piece Unit VAV Control Panel 39-312d Fig. 30 — Supply-Air Temperature Sensor Installation (Unit Discharge Location)
Page 30: Smoke Detector/Fire Alarm Shutdown (Fsd)
Table 11 — Thermistor Resistance vs Temperature Values for Supply-Air Temperature Sensor (10 Kilo- ohm) TEMP TEMP –40 –40 –35 –31 –30 –22 –25 –13 –20 –4 –15 –10 –5 SMOKE DETECTOR/FIRE ALARM SHUTDOWN (FSD) — To allow a smoke detector to shut the 50BV down, remove the jumper from FSD to C and wire these terminals to a set of normally closed contacts on the smoke detector.
Page 31: Return-Air Filters
Set the thermostat temperature above room temperature. All compressors and the unit fan should now be off. HEATING (Heat Pump Units Only) — Follow the same se- quence as for cooling (above), except set the space thermostat to HEAT, and instead of adjusting the thermostat below room temperature, adjust it above.
Page 32 Table 14 — Fan Performance — 50BVC,E,Q024 AIRFLOW (cfm) Watts 5,000 — — — — 5,500 — — — — 6,000 — — — 6,500 — — — 7,000 0.87 7,500 1.03 8,000 1085 1.22 8,500 1273 1.43 9,000 1480 1.67 9,500 1713...
Page 33 Table 15 — Fan Performance — 50BVC,E,Q028 AIRFLOW (cfm) Watts 6,250 — — — 7,000 0.87 7,500 1.03 8,000 1054 1.22 8,500 1237 1.43 9,000 1437 1.67 9,500 1664 1.93 10,000 1908 2.21 10,500 2179 2.53 11,000 2467 2.86 11,500 2824 3.24 12,000...
Page 34 Table 16 — Fan Performance — 50BVC,E,Q034 AIRFLOW (cfm) Watts 9,000 1187 1.36 9,500 1362 1.56 10,000 1555 1.78 10,500 1775 2.03 11,000 2004 2.30 11,500 2259 2.59 12,000 2533 2.90 12,500 2842 3.26 13,000 3169 3.63 13,500 3514 4.03 14,000 3895 4.46...
Page 35 Table 17 — Fan Performance — 50BVT,U,V034 AIRFLOW (cfm) Watts 9,000 3,167 3.76 9,500 3,666 4.35 10,000 4,226 5.01 10,500 4,820 5.72 11,000 5,503 6.53 11,500 6,236 7.40 12,000 6,952 8.34 12,500 7,816 9.38 13,000 8,595 10.49 13,500 9,572 11.68 14,000 10,634 12.97...
Page 36 Table 17 — Fan Performance — 50BVT,U,V034 (cont) AIRFLOW (cfm) Watts 9,000 6,095 7.23 9,500 6,690 8.03 10,000 7,423 8.91 10,500 8,199 9.84 11,000 8,913 10.87 11,500 9,812 11.97 1014 12,000 1006 10,771 13.14 1031 12,500 1025 11,824 14.42 1050 13,000 1045 12,936...
Page 37 Table 18 — Fan Performance — 50BVT,U,V044 AIRFLOW (cfm) Watts 12,000 1057 1.25 12,500 1173 1.39 13,000 1280 1.52 13,500 1422 1.69 14,000 1546 1.83 14,500 1706 2.02 15,000 1847 2.19 16,000 2200 2.61 17,000 2570 3.05 17,500 2781 3.30 18,000 3001 3.56...
Page 38 Table 19 — Fan Performance — 50BVT,U,V054 AIRFLOW (cfm) Watts 15,000 1953 2.32 16,000 2315 2.75 17,000 2728 3.24 18,000 3167 3.76 18,500 3413 4.05 19,000 3666 4.35 19,500 3938 4.67 20,000 4226 5.01 20,500 4505 5.34 21,000 4820 5.72 22,000 5503 6.53...
Page 39 Table 19 — Fan Performance — 50BVT,U,V054 (cont) AIRFLOW (cfm) Watts 15,000 4,444 5.27 16,000 4,924 5.84 17,000 5,495 6.52 18,000 6,095 7.23 18,500 6,359 7.63 19,000 6,690 8.03 19,500 7,048 8.46 20,000 7,423 8.91 20,500 7,798 9.36 21,000 8,199 9.84 22,000 8,913...
Page 40 Table 20 — Fan Performance — 50BVT,U,V064 AIRFLOW (cfm) Watts 18,000 3,167 3.76 19,000 3,666 4.35 20,000 4,226 5.01 21,000 4,820 5.72 22,000 5,503 6.53 23,000 6,236 7.40 24,000 6,952 8.34 25,000 7,816 9.38 26,000 8,595 10.49 27,000 9,572 11.68 28,000 10,634 12.97...
Page 41 Table 20 — Fan Performance — 50BVT,U,V064 (cont) AIRFLOW (cfm) Watts 18,000 6,095 7.23 19,000 6,690 8.03 20,000 7,423 8.91 21,000 8,199 9.84 22,000 8,913 10.87 23,000 9,812 11.97 1014 24,000 1006 10,771 13.14 1031 25,000 1025 11,824 14.42 1050 26,000 1045 12,936...
Page 42: Vav Unit Start-Up
VAV Unit Start-Up PERFORM AUTOMATIC RUN TEST — The 50BVJ,K, W,X unit controls are programmed with an automatic run test that checks connection and operation of major components. To perform the run test: Verify that the control display (LID [Local Interface Dis- play] device/system monitor) interface cable is connected to in- ternal jack on main controller;...
Page 43: Check Vfd
FUNCTION KEYS OPERATIVE KEYS 23. The control forces CMP2 (compressor 2) on then waits 5 seconds. If CSMUX is not in range, the red LED will go on and the test will stop. If CSMUX is in range, the red LED blinks once and the test continues.
Page 44: Set The Clock
VEC lamp Lights when sensorless vector operation control is running. ECN lamp Lights whenenergy-saving mode is in operation. Charge Lamp Indicates that high voltage is still present within the inverter. Do not open the terminal board cover while this is lit. Up/down key lamp Pressing up or down key when this lamp...
Page 45 7. Enter the day of the month. Press . The LID display will show: Year 8. Enter the last two digits of the current year. Press then press . The LID display will show: ENTER Update Clock 9. Press 1 and then to update the clock.
Page 46: Check System Parameters
Table 21 — Controller Set Points DESCRIPTION VALUE UNITS STATUS FORCE DISPLAY SCREENS OMNIZONE:SETPT01: Supply fan Status Occupied Lo Setpoint 0.3 in. H2O Occupied Hi Setpoint 0.4 in. H2O Unoccupied Lo Setpoint 0.3 in. H2O Unoccupied Hi Setpoint 0.4 in. H2O OMNIZONE:SETPT02: VAVRESETbaseline Occupied Lo Setpoint...
Page 47: Sequence Of Operation (Cv Only)
3 times. the features of the thermostat used. The ‘O’ terminal energizes the reversing valve (heat pump units only). Typically ‘Y1’ will also be energized at this time for cooling operation. During the second stage of cooling, ‘Y2’ will be initialized after a mini-...
Page 48: Sequence Of Operation (Vav Only)
Sequence of Operation (VAV Only) — lowing control sequence of operation for the VAV units de- scribes the various sequences that occur depending upon the way an operation is triggered and which software control points are involved. SUPPLY FAN — The supply fan can be activated in any of the following ways: •...
Page 49: Service
SERVICE CAUTION Improper phase sequence will cause scroll compressor failure due to reverse rotation. Signs of miswire are: • Excessive noise • Reverse rotation of 3 phase indoor fan • Rapid temperature rise on suction tube • No pressure differential Correct immediately.
Page 50: Gravity Flow Method
GRAVITY FLOW METHOD (Fig. 34) — Do not add solu- tion faster than the vent can exhaust the generated gases. When condenser is full, allow the solution to remain over- night then drain the condenser and flush with clean water. Fol- low acid manufacturer’s instructions.
Page 51: Evaporator Fan Performance Adjustment
a50-7135tf Fig. 36 — Sheave Alignment Evaporator Fan Performance Adjustment — To change fan speeds from factory settings: 1. Shut off unit power supply. 2. Loosen nuts on the 4 carriage bolts in the mounting base. Using adjusting bolts and plate, slide the motor and remove the belt.
Page 52 Table 27 — Run Test Troubleshooting (VAV Units Only) PROBLEM Control modules do not have lights when unit power is on. Control display does not light up when unit power is on. Run test will not start. WARN (yellow) LED does not light during run test. ALARM (red) LED does not light during run test.
Page 53 PROBLEM Unit Will Not Start. Loss of unit power Unit voltage not correct Open fuse Open protection device Unit or motor contactor out of order Fan Does Not Operate. Contactor or relay overload or out of order VFD not running Motor defective Broken belt Loose electrical contact...
Page 54: Forcing And Clearing An Input Or Output
Table 29 — CV Units LED Diagnostic Codes NO. OF BLINKS DESCRIPTION 1st Stage High-Pressure Lockout 1st Stage Low-Pressure Lockout 2nd Stage High-Pressure Lockout 2nd Stage Low-Pressure Lockout Freeze Protection Lockout* Condensate Overflow Lockout* *Freeze protection and condensate overflow lockout require optional sensors.
Page 55 a50-8250...
Page 56 A50-8251...
Page 57 a50-7279ef...
Page 59 a50-7284ef...
Page 61 a50-7282ef...
Page 62 a50-7283ef...
Page 63 a50-7285ef VFD2 COMMON VFD1 24VAC CSMUX...
Page 64 a50-7286ef VFD2 COMMON VFD1 24VAC CSMUX...
Page 65 BPS_S — Fan Start/Stop Relay (VFD Bypass Mode) — Blower Relay BYPAS — VFD Bypass Control — Circuit Breaker — Compressor Contactor ® — Carrier Comfort Network CDWF — Condenser Waterflow Relay CDWFS — Condenser Waterflow Switch — Compressor Lockout Control — Compressor Control Relay COMPR —...
Page 66 Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500001-01 Printed in U.S.A. Form 50BV-3SI Pg 66 10-08 Replaces: 50BV-2SI...
Page 67: Start-Up Checklist
I. PRELIMINARY INFORMATION: MODEL NO. ____________________ 50BV UNIT: START-UP DATE: ______________________________________ II. PRE-START-UP: VERIFY ALL SHIPPING MATERIALS HAVE BEEN REMOVED FROM THE UNIT IS THERE ANY SHIPPING DAMAGE? ________________ IF SO, WHERE ________________ _________________________________________________________ WILL THIS DAMAGE PREVENT UNIT START-UP? CHECK POWER SUPPLY.
Page 68 SUPPLY FAN AMPS: NOTES: _______________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ _______________________________________________________________________________________________ Copyright 2008 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53500001-01 Printed in U.S.A. CIRCUIT 1...

This manual is also suitable for:

Omnizone 50bv020 Omnizone 50bv024 Omnizone 50bv028 Omnizone 50bv034 Omnizone 50bv044 Omnizone 50bv054 ... Show all

Carrier OMNIZONE 50BV020-064 Installation And Service Instructions Manual

Quick Links

SAFETY CONSIDERATIONS

Related Manuals for Carrier OMNIZONE 50BV020-064

Summary of Contents for Carrier OMNIZONE 50BV020-064

This manual is also suitable for:

Table of Contents