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Fig. 32 — Flex and Expansion XNET Connection

Sequence of Operation, VAV Units Only
50BVJ,W

See the integration points list on page CL-1 for specific points and

values.
CONTROL SOURCE (RUN CONDITIONS)
The unit may have external or internal control sources to initiate

heating or cooling operation.
EXTERNAL CONTROL SOURCE
The unit may be controlled from the following external sources:

• Digital input
• BAS – Building Automation System
• Manual on

DIGITAL INPUT
Provides a method of running the unit by providing a contact clo-

sure (On/Off) to UI-12. Digital input provides a simple interface

for enabling unit operation. Once enabled, the unit will run until

the occupied set point has been satisfied.
BAS
Provides a network interface to the heat pump. The I/O Flex 6126

controller supports the following building automation protocols

(see Table 21):

MANUAL ON
Places the unit in manual run mode; the unit will operate until the

set point is satisfied.
INTERNAL CONTROL SOURCE (KEYPAD)
All controllers are provided with a battery backup real time clock.

When configured for Keypad, the internal scheduler uses the local

time and user schedule to initiate unit operation. Occupied Sched-

ule: 56°F supply air set point (adjustable).

Unit Mode

50BV VAV units are configured with DX cooling and modulating

HGRH. The selected unit mode in the 50BV controller should be

Discharge Air control. Other modes are not applicable and can

cause operational issues.

Fan Modes

The Fan mode option is used to select the type of fan hardware be-

ing used with the unit. Fan hardware is application specific and

will determine the behavior for the specific application for which

it is being applied.
The Fan option may be configured with one of the following op-

tions:

• Supply Air Fan (SAF) Start/Stop (also known as On/Off

signaling)

• Variable Frequency Drive (or Variable Fan used in VAV

applications)

• Return Fan interlock with Supply Fan (If SAF runs RAF

runs)

START/STOP FANS
The fan enable signal is provided on BO-1 of the I/O Flex 6126

controller; operation is interlocked with cooling and re-heat opera-

tions. The return air fan can be enabled via the BACview tool, and

it will be commanded 5 seconds after the supply fan has been en-

gaged at all times.
The supply fan can also be set to stop if the return fan is in alarm

via the BACview tool.
VARIABLE FREQUENCY DRIVE (VFD) FAN
The VFD uses an analog signal (0 to 10V) to control the speed of

the blower. This signal is output from Analog Output 1 (AO-1) of

the I/O Flex 6126 controller.
The supply and return air fan speeds are modulated by indepen-

dent PID loops to maintain independent static pressure set points;

the factory-provided duct static pressure sensor is required as input

(connected to UI 11 for supply and IN-10 for return) on the I/O

Flex 6126 controller and the I/O Flex EX8160 expander, for the

VFD blower option. Units do not allow for mounting of the Re-

turn Fan VFD inside the equipment and require the VFD equip-

ment to be mounted close to the unit. An inside wall in the me-

chanical room close to the unit is typically used for mounting an

external VFD. See Table for VFD factory default settings.
SUPPLY AND RETURN FAN OPERATION
When the unit control is set for occupied operation the fan will run

continuously as the default behavior. If the return fan is enabled, it

will follow the operation of the supply fan mode which may be

modified to cycle only during mechanical operation. During unoc-

cupied operation the fan will only cycle during a call to maintain a

cooling set point.
FAN OPERATION DURING DISCHARGE (SUPPLY AIR

TEMPERATURE) AIR CONTROL (DAC)
For DAC applications, the fan’s speed is calculated as a demand

percent calculated based on the PID static pressure sensor value

and the static pressure set point.
If static pressure reset strategies are utilized the minimum fan

speed recommended is 40% of nominal CFM. If the fan demand

is less than 40% of nominal CFM (20% for the return fan) the

PID loop will be disregarded and the fan will run at the mini-

mum value.
Units configured for discharge air control will run only when the

controller is in occupancy mode.

Table 21 — Communication Protocol

BACnet

Building Automation and Control network

Modbus

Common open industrial protocol standard

LonWorks

LonWorks Automation and control network

(Card required)

Содержание Omnizone 50BVC

Страница 1: ...E DETECTOR FIRE ALARM SHUTDOWN FSD REMOTE OCCUPANCY ROCC RETURN AIR TEMPERATURE RAT SENSOR START UP 32 General 32 CRANKCASE HEATERS CONFIRM THE INPUT POWER PHASE SEQUENCE INTERNAL WIRING RETURN AIR FI...

Страница 2: ...stment 71 BELT TENSION ADJUSTMENT Compressor Oil 72 TROUBLESHOOTING 72 SCHEMATICS 74 SENSORS AND INTEGRATION POINTS 80 START UP CHECKLIST CL 1 SAFETY CONSIDERATIONS Installation and servicing of air c...

Страница 3: ...trips during cold start up Brownout Surge Power Interruption Protection will shut down the main control board functions if the secondary voltage falls below 18 volts or goes above 30 volts A blink co...

Страница 4: ...rect capacity configuration and voltage compared to the unit submittals or product data 2 Verify all modules pieces have been received 3 Verify all required accessories or other field installed compo...

Страница 5: ...d the unit 8 Insulate supply and return ducts with 2 in 3 lb density insu lation 9 Round duct is recommended If rectangular ductwork is used keep aspect ratios as small as possible i e as close to squ...

Страница 6: ...hardware provided in the main air conditioning section and the instructions below 1 The filter economizer section ships bolted to the main air conditioning section and can be removed in the field high...

Страница 7: ...ld Split 30 Ton Fig 3 High Boy Field Split 40 60 Ton 2 3 1 3 2 1 NOTES 1 The filter rack modules item 3 can be field removed from the compressor evaporator module to reduce unit size as shown above 2...

Страница 8: ...8 Fig 4 Low Boy Field Split 30 Ton 1 1 2 2 NOTES 1 The filter rack modules item 2 can be field removed from the compressor evaporator module to reduce unit size as shown above 2 Dimensions in inches...

Страница 9: ...9 Fig 5 Low Boy Field Split 40 60 Ton 1 3 2 4 1 2 3 4...

Страница 10: ...ley Belt Access 18 Minimum 24 Optimum Compressor Access and Electrical Control Access 36 Minimum Blower Blower Blower Motor Blower Motor Compressor Compressor Electrical Control Box Front of Unit Blow...

Страница 11: ...RETURN TOP SUPPLY REAR SUPPLY FRONT SUPPLY TOP SUPPLY When WSHP Open controller is installed increase depth by 3 00 inches NOTES 1 All dimensions in inches unless otherwise noted All dimensions withi...

Страница 12: ...Connection NOTE 1 Optional hot water coil connections may add up to 3 on both the left and right side of the unit increasing the unit width an additional 6 8 LIFTING SUPPORT RAIL 1 50 CONDENSATE DRAIN...

Страница 13: ...TRICAL BOX ACCESS HOT WATER OUT FILTER ACCESS ECONO COIL DX EVAPORATOR HOT WATER COIL ECONO COIL FILTER ACCESS DX EVAPORATOR HOT WATER COIL HOT WATER IN WATERSIDE ECONOMIZER WATER IN WATERSIDE ECONOMI...

Страница 14: ...00 13 25 17 50 51 63 LOW VOLTAGE HIGH VOLTAGE ELECTRICAL BOX ELECTRICAL BOX ACCESS 90 25 2 00 VFD BOX BLOWER SECTION ACCESS COMPRESSOR ACCESS 49 75 21 75 9 88 COMPRESSOR ACCESS EVAPORATOR ACCESS EVAP...

Страница 15: ...BOX ELECTRICAL BOX ELECTRICAL BOX ACCESS ELECTRICAL BOX ELECTRICAL BOX ACCESS FILTER ACCESS EVAPORATOR ACCESS VFD BOX BLOWER SECTION ACCESS FILTER ACCESS OPTIONAL ECONO COIL HOT WATER OUT DX EVAPORAT...

Страница 16: ...VOLTAGE WATER OUT DRAIN WATER IN 14 00 356 7 25 184 10 00 254 TOP VIEW 2 00 51 32 00 813 FILTER RACK 80 00 2032 9 00 229 24 00 610 14 00 356 24 00 610 20 00 508 2 FPT WATER CONN 2 FPT 2 FPT CONDENSATE...

Страница 17: ...ROL BOX AND CONTROLLER ACCESS WATER OUT DRAIN WATER IN LOW VOLTAGE HIGH VOLTAGE 10 00 254 TOP VIEW 2 00 51 32 00 813 FILTER RACK 20 00 508 24 00 610 24 00 610 9 00 229 14 00 355 AIR MOTOR AND BELT ACC...

Страница 18: ...D AIR AIR AIR 17 25 438 34 50 876 4 00 102 5 00 127 5 00 127 PRE COOLING COIL HOT WATER COIL 0 75 19 DRAIN RIGHT SIDE VIEW 2 50 64 19 00 483 4 00 102 1 00 25 MOTOR AND BLOWER ACCESS BOTH SIDES VFD 1 0...

Страница 19: ...AIN WATER IN LEFT SIDE VIEW 32 00 813 14 00 356 28 50 724 1289 0 75 19 DRAIN AIR MOTOR AND BELT ACCESS BOTH SIDES 6 00 152 86 50 2197 27 25 692 54 50 1384 3 50 89 6 00 152 PRE COOLING COIL HOT WATER C...

Страница 20: ...3450 3450 3450 RETURN AIR FILTERS Quantity Size in 4 20x32 5x1 4 20x32 5x1 4 20x32 5x1 4 20x32 5x1 Table 3 Physical Data 50BVT V W UNIT 50BVT V W 034 044 054 064 NOMINAL CAPACITY Tons 30 40 50 60 OPER...

Страница 21: ...d for a length of at least 15 ft from the unit Direct line of sight from return air grilles into the unit s return should be avoided If return air is to be ducted to an equipment room an elbow should...

Страница 22: ...d be used if ambient temperatures are ex pected to fall below freezing or if the loop water temperature is below 55 F while the unit is operating in heating mode Refer to Table 4 which lists freezing...

Страница 23: ...r the system pressure expected Pipe coils so that they will drain and provide a drain and vent The fac tory installed VAV controller is not capable of controlling an exter nal heat source including ho...

Страница 24: ...2 6 2 5 2 5 100 2 9 3 1 3 1 110 3 5 3 7 3 7 120 4 2 4 2 4 4 130 5 1 4 9 5 1 140 5 9 5 7 5 9 150 6 7 6 6 6 6 160 7 6 7 6 7 5 170 8 6 8 6 8 5 180 9 6 9 6 9 5 FLOW RATE GPM SIZE 020 SIZE 024 SIZE 028 SIZ...

Страница 25: ...e low voltage wiring located in the compressor com partment between the two air conditioning sections using the quick connects provided For the supply fan motor connect the 3 phase high voltage wir in...

Страница 26: ...dification See Fig 21 for typical thermostat wiring 50BVT V044 064 Only Unit sizes 044 064 have 4 independent refrigerant circuits These units can be controlled using a standard commercial 2 stage the...

Страница 27: ...Units Two Stage Cooling C O Y1 Y3 R G C O Y2 Y4 C O Y1 Y2 R G PR2 PR1 PR1 PR2 FIELD SUPPLIED THERMOSTAT UNIT MODULE A UNIT MODULE B Remote Condenser Units Only PR1 PR2 FC1 4 FC1 5 FC1 4 FC1 5 1 2 R G...

Страница 28: ...0 2 5 4 38 3 50 024 208 230 3 60 197 253 2 30 1 225 0 2 0 2 6 2 80 1 110 2 30 1 225 0 3 0 2 8 0 83 7 110 2 30 1 225 0 5 0 2 13 4 94 5 110 460 3 60 414 506 2 16 7 114 0 2 0 2 3 1 43 8 60 2 16 7 114 0 3...

Страница 29: ...30 1 225 0 2 0 2 6 2 80 1 110 208 230 3 60 197 253 2 30 1 225 0 3 0 2 8 8 85 3 110 208 230 3 60 197 253 2 30 1 225 0 5 0 2 13 5 94 7 110 460 3 60 414 506 2 16 7 114 0 2 0 2 3 1 43 8 60 460 3 60 414 50...

Страница 30: ...5 2 18 9 114 1 125 460 3 60 414 506 4 17 9 125 20 2 24 5 126 7 150 575 3 60 518 632 4 12 8 80 7 5 2 7 5 69 4 80 575 3 60 518 632 4 12 8 80 10 2 10 3 75 0 80 575 3 60 518 632 4 12 8 80 15 2 15 1 85 2 1...

Страница 31: ...OWN FSD To allow a smoke detector to shut the 50BV unit down field ter minate the sensor on IN 1 of the I O Flex EX8160 expander Use the BACview tool to enable its operation REMOTE OCCUPANCY ROCC The...

Страница 32: ...89 26 834 115 46 11 4 182 35 37 22 279 880 41 5 00 25 395 117 47 22 4 006 33 36 11 260 410 43 6 11 24 042 119 48 33 3 838 31 35 00 242 427 45 7 22 22 770 121 49 44 3 679 29 33 89 225 809 47 8 33 21 5...

Страница 33: ...nd sensors of each re frigerant circuit This device provides time delays and protects the unit against freezing of the water and refrigerant heat exchangers as well as condensate overflow when the app...

Страница 34: ...not energize the CC1 or CC2 outputs the corresponding compressor will remain off the fault LED will flash two times for the LP1 and 4 times for the LP2 and the alarm contact will remain off If the com...

Страница 35: ...oving the power from the Y terminal R if set on the DIP switch The compressors will be turned on af ter anti short cycle expires Sequence of Operation CV Units 50BVC Q T V The following sequence of op...

Страница 36: ...36 Fig 27 UPM Sequence of Operation SOO Flow Chart...

Страница 37: ...power outages PROTECTION Incoming power and network connections are protected by non replaceable internal solid state polyswitches that reset themselves when the condition that causes a fault returns...

Страница 38: ...l with the ground wire For a loop powered 4 to 20 mA sensor wire the sensor s positive terminal to the terminal on the I O Flex 6126 controller s Aux Power Out Port Wire the sensor s nega tive termina...

Страница 39: ...VDC UI 0 10 V RTD Therm Dry 0 20 mA UI 05 8 9 AI CO2 Sensor Required for demand control ventilation 0 5 VDC UI 0 10 V RTD Therm Dry 0 20 mA UI 04 7 8 AI Leaving Water Temperature Sensor standard 10K...

Страница 40: ...0 5 V Therm Dry IN 10 3 4 AI Open UI 0 5 V Therm Dry IN 9 1 2 DI Supply Duct High Static BI Dry contact IN 8 15 16 DI Supply Fan Thermal Overload BI Dry contact IN 7 13 14 DI Water Flow Proving switch...

Страница 41: ...Remote Expansion connector 3 Turn on the power to both the I O Flex EX8160 expander and the I O Flex 6126 controller VAV Control Parameters Status and Alarms Control Integral occupancy schedule Exter...

Страница 42: ...42 Fig 31 I O Flex 6126 Controller Input Modes and Diagram...

Страница 43: ...and re heat opera tions The return air fan can be enabled via the BACview tool and it will be commanded 5 seconds after the supply fan has been en gaged at all times The supply fan can also be set to...

Страница 44: ...mulated running time The total fan run time prior to filter service is user configu rable factory default 2000 hrs The filter timer may be reset upon the filter being serviced WATER DIFFERENTIAL PRESS...

Страница 45: ...equency 13 1301 Minimum AI 1 0 1302 Maximum AI 1 100 1303 Filter AI 1 1 Sec 1304 Minimum AI 2 0 1305 Maximum AI 2 100 1306 Filter AI 2 1 Sec 14 1401 Relay Output 1 Ready 1402 Relay Output 2 Run 1403 R...

Страница 46: ...req 3402 Signal 1 Minimum 0 3403 Signal 1 Maximum 60 50 Maximum motor operating Hertz 3404 Output 1 DPS Form 0 3405 Output 1 DSP Unit SP 3406 Output 1 Minimum 0 3407 Output 1 Maximum 100 3408 Signal P...

Страница 47: ...mmable 6Hz Motor Nominal Frequency 13 1301 Minimum AI 1 0 1302 Maximum AI 1 100 1303 Filter AI 1 1 Sec 1304 Minimum AI 2 0 1305 Maximum AI 2 100 1306 Filter AI 2 1 Sec 14 1401 Relay Output 1 Ready 140...

Страница 48: ...Output Freq 3402 Signal 1 Minimum 0 3403 Signal 1 Maximum 60 50 Maximum motor operating Hertz 3404 Output 1 DPS Form 0 3405 Output 1 DSP Unit SP 3406 Output 1 Minimum 0 3407 Output 1 Maximum 100 3408...

Страница 49: ...perature RAT values as indicated in Table 27 All values have a hysteresis of 2 0 F If discharge air set point reset is required when the value of the discharge air set point is greater than the value...

Страница 50: ...out side of normal operating limits Should a High or Low Leaving Water Temperature Alarm occur the call for cool ing will be removed UPM Fault Monitor The controller will monitor both Unit Protection...

Страница 51: ...14 flashes per second 14 flashes per second alternating with Run LED Burnout Alternating flashes with Error LED Alternating flashes with the Run LED The controller files have been archived On On Failu...

Страница 52: ...ormation at the same time By default the BACview goes into screen saver mode after 1 minute of inactivity Pressing any key reactivates the screen to the Home Screen To verify the COM port to use for V...

Страница 53: ...ear allowing the network num ber to be changed 2 Decrease the ARC156 network number to 0 using the increase INCR and or decrease DECR softkeys 3 Click the OK softkey to save the value 4 Move the brack...

Страница 54: ...e changed 2 Click the INCR or DECR softkeys to change the value 3 To save the change click the OK softkey To cancel the change click the CANCEL softkey Table 33 Modulating Hot Gas Re Heat Screen Funct...

Страница 55: ...Virtual BACview Ctrl 2 The Set Current Time Date 24 hr clock screen see Fig 46 al lows the time and date to be set Fig 46 Set Current Time Date 24 hr clock Screen To change the time and date 1 Move th...

Страница 56: ...ss the Alarm screen Table 36 Unit Operation Screen Functions FIELD KEY FUNCTION INFORMATION Unit Status non adjustable Current unit operating status Software Mode non adjustable Manual_On Unit is turn...

Страница 57: ...number of fan starts in the last hour Runtime Hours since FILTR service non adjustable Total number of hours since the filters were changed Table 39 Unit Operation Setpoint Screen Functions FIELD KEY...

Страница 58: ...oftkey to access the PID Tuning Parameters screen or click the Smoke softkey to access the Smoke Detec tor screen See Table 41 for screen function information Table 40 Supply Fan Lockouts Screen Funct...

Страница 59: ...access the Return Fan Lockouts screen Table 42 Smoke Detector Screen Functions FIELD KEY FUNCTION INFORMATION SMOKE DETECTOR STATUS non adjustable Displays the current status of the smoke detector DIG...

Страница 60: ...rm softkey to access the Alarm screen or click the UPM2 softkey to access the UPM2 Faults screen See Table 45 for screen function information To reset the Unit Protection Module UPM 1 Move brackets on...

Страница 61: ...egistered a fault HP1 Faults Total non adjustable Displays the number of High Pressure switch faults for Circuit 1 since the last reset HP1 Faults Last hr non adjustable Displays the number of High Pr...

Страница 62: ...e number of Low Pressure switch faults for Circuit 4 in the last hour FRZ Faults Total non adjustable Displays the number of Freeze alarms since the last reset FRZ Faults Last hr non adjustable Displa...

Страница 63: ...n See Table 51 for screen function information Table 48 Outside Air Reset Screen Functions FIELD KEY FUNCTION INFORMATION Outside Air Temperature non adjustable Displays the current outside air temper...

Страница 64: ...Functions FIELD KEY FUNCTION INFORMATION Supply Air Temperature non adjustable Displays the current Supply Air Temperature Outside Air Temperature non adjustable Displays the current Outside Air Temp...

Страница 65: ...s sor 2 starts in the last hour sliding scale Compressor 2 Runtime hours non adjustable Displays the current Compressor 2 run time in hours Comp 3 Starts Total non adjustable Displays the current numb...

Страница 66: ...y to return to the Schedule screen or the Continue softkey to access other days of the week to which to save the schedule SAVE DAILY SCHEDULE Access Weekly Schedule screen Continue softkey The Save Da...

Страница 67: ...and end times for DST can be changed Fig 77 Daylight Savings Time Screen 1 Move the bracket using the arrow keys to the value that needs to be changed 2 Press ENTER to change the value The screen soft...

Страница 68: ...user to view the current CO2 level Fig 82 Zone CO2 Control Screen Click the softkey to access the CO2 Help screen Click the Stpt softkey to access the Zone CO2 Setpoint screen See Table 61 for Unit Op...

Страница 69: ...should be wiped down using a damp soft cloth or sponge with a mixture of warm water and a mild detergent Coil Cleaning Hot water steam and direct expansion coils must be cleaned at least once a year...

Страница 70: ...pplied for a longer period GRAVITY FLOW METHOD FIG 85 Do not add solution faster than the vent can exhaust the generated gases When condenser is full allow the solution to remain overnight then drain...

Страница 71: ...he shafts at 3 or more locations If the distances are equal then the shafts are parallel Sheave Alignment 1 To check the location of the fixed sheaves on the shafts use a straightedge or a piece of st...

Страница 72: ...turn to the compressor s from other system components If neces sary recharge the system as shown in Table 62 Table 62 Oil Recharge TROUBLESHOOTING Refer to Tables 63 and 64 to determine the possible...

Страница 73: ...device and replace Check for missing phase Check TXV Check temperature in suction discharge line Unit is Noisy Compressor noise Check TXV and replace if necessary Compressor rotation incorrect check...

Страница 74: ...dication and will blink a code as described above Count the number of blinks to determine the lockout condition SCHEMATICS Refer to Fig 89 93 for voltage and wiring schematics NO OF BLINKS DESCRIPTION...

Страница 75: ...34 Constant Volume Wiring Schematic UNIT PROTECTION MODULE UPM II INCLUDES BUILT IN 270 300 SECOND RANDOM START TRANSFORMER PRIMARY LEAD COLOR 120 White 208 Red 240 Orange 277 Brown 380 Purple or Yell...

Страница 76: ...76 Fig 90 50BVT V044 064 Constant Volume Wiring Schematic DDC UNIT PROTECTION MODULE UPM II INCLUDES BUILT IN 270 300 SECOND RANDOM START 300 SECOND DELAY ON BREAK 120 SECOND LOW PRESSURE BYPASS...

Страница 77: ...2 3 4 5 STANDARD COMPONENTS CS COMPRESSOR STATUS 1 4 CURRENT SENSOR 4 IN 4 STAGE UNITS DSS DUCT STATIC SENSOR LWTS LEAVING WATER TEMPERATURE SENSOR RAT RETURN AIR TEMPERATURE SENSOR SAT SUPPLY AIR TEM...

Страница 78: ...2 1 4 3 5 6 7 8 9 10 11 12 13 14 15 16 2 1 3 STANDARD COMPONENTS RSS RETURN STATIC SENSOR TO 24 VAC POWER ON CONTROLLER RSS 0 5 VDC COM STANDARD COMPONENTS CWVS CONDENSER WATER VALVE STATUS FA FIRE AL...

Страница 79: ...ODULATING HOT GAS REHEAT DX 1 2 1 2 WATER SIDE ECONOMIZER H AI DHS FILTER REHEAT OUTSIDE AIR DAMPER COMPRESSOR START STOP FAN START STOP EWT DUCT HUMIDITY SENSOR DUCT STATIC PRESSURE SENSOR DUCT TEMP...

Страница 80: ...AME SNVT DESCRIPTION Alarm Status R Discrete Input 5 alm_status BV 24 nvoAlm Status SNVT_switch 95 Alarm Status of Unit see Current Alarm for more information Allow CWV Alarm R W Coil 1 allow_cwv_alr...

Страница 81: ...rs 0 Off 1 Timer Has Expired CMP3_RNTM R Discrete Input 18 comp3_rntm BV 69 Select Compressor 3 Runtime Alarm Status Hours 0 Off 1 Timer Has Expired CMP4_RNTM R Discrete Input 19 comp4_rntm BV 71 Sele...

Страница 82: ...VT_count_inc 9 Compressor Stages Configured Status 1 1 Compressor 1 Stage 2 2 Compressor 2 Stages 3 3 Compressor 3 Stages 3 and 4 Stage units only 4 4 Compressor 4 Stages 50BV Default Compressors mode...

Страница 83: ...en BV 31 Select Network Alarm Indicat ing Discharge Air Sen sor Failure 0 Normal 1 Alarm Damper Output Cmd R Discrete Input 33 damper_cmd BV 49 nvoDamp erCmd SNVT_switch 95 Damper Output Status 0 Clos...

Страница 84: ...rameter to set ELW sensor FAIL 0 Hardwired Sensor Default 1 BAS Sensor Value Enabled Stages R Input Register Float 29 enabled_cl stages AV 68 Select Network Status of the number of Compressor Stages E...

Страница 85: ...P3 R Discrete Input 51 lp3_3st BV 6 nvoLp3Ala rm SNVT_switch 95 UPM Board 1 Low Pres sure Alarm Status for Compressor 2 0 Normal 1 LP2 Alarm Active LP4 R Discrete Input 52 lp4_4st BV 55 nvoLp4Ala rm S...

Страница 86: ...15 do_two BV 91002 Select Factory Reserved Point Name R W Coil 16 do_three BV 91003 Select Factory Reserved Point Name R W Coil 17 do_six BV 91006 Select Factory Reserved Point Name R W Coil 18 do_fiv...

Страница 87: ...0 Normal 1 Overload Alarm RF Overload Status R Discrete Input 75 rtn_blw_ovr load_status BV 98 Select Network Status indicat ing return fan motor over load trip 0 Normal 1 Overload Alarm RH Sensor Sel...

Страница 88: ...s AV 16 nvoSys Status SNVT_count_inc 9 General System Status 0 Unoccupied 1 Occupied 2 Fan Only 4 Cooling 5 Transition to Cool 10 Re Heat Unit_mode R W Holding Regis ter Float 49 unit_mode AV 23 Selec...

Страница 89: ......

Страница 90: ...ight to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500190 01 Printed in U S A Form 50BV 6SI Pg 90 11 21 Replaces 50BV...

Страница 91: ...Y N _______ HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE Y N _______ ARE PROPER AIR FILTERS IN PLACE AND CLEAN Y N _______ VERIFY THAT THE UNIT IS INSTALLED WITHIN LEVELING TOLERANCE...

Страница 92: ...VERAGE VOLTAGE V VOLTAGE IMBALANCE 100 X MAX DEVIATION AVERAGE VOLTAGE IF OVER 2 VOLT AGE IMBALANCE DO NOTATTEMPT TO START SYSTEM CALL LOCAL POWER COMPANY FOR ASSISTANCE III START UP CHECK FAN SPEED A...

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