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Manual 2100-614I 
Page 

9 of 43

HUMIDITY CONTROL OPTION

Note:

 

This function is not available if controller is 

configured for heat pump.

The standard air conditioning system can be adapted 
to perform dehumidification control by addition of a 
simple humidity controller that closes-on-rise, and 
is connected to terminals H1 and H2 on the main 
controller board.  Recommended Bard Part #8403-038 
(H600A 1014).  Both HVAC units must be equipped 
with electric heat for this sequence to work properly.  
See appropriate connection diagram - Figures 1 - 12 for 
this connection:

  1. Temperature control always has priority over    
    dehumidification.  If there is any stage of cooling  
    demand active, the dehumidification sequence is  
  locked 

out.

  2. If all stages of cooling are satisfied, and relative  
    humidity is above the setpoint of humidity  

 

  controller:
    a. The green “Dehumid. Operation” light will come  
   on, 

and 

the 

lag unit compressor and blower will  

      operate until the setpoint of humidity controller  
      is satisfied (or cancelled by a call for cooling).
    b. If the space temperature drops to 67F, the    
      electric heater of the lead unit will cycle to help  
      maintain building temperature.  It will cycle off  
   at 

69F.

 

c. If space temperature drops to 64F, the Stage 2  

 

  Heating light will come on and the lag unit    

 

  compressor operating for dehumidification mode  

 

  will cycle off until the building temperature rises  

 

  above 65F from 1st stage heat and building load.   

 

  The green “Dehumid. Operation” light stays on  

 

  during this sequence, and when Stage 2 Heating  

 

  light is Off, the compressor is On.  The electric  

 

  heater in lag unit is locked out in    

 

 

  dehumidification mode.

Lag unit outputs G, Y1 and Y2 are all switched on 
during dehumidification sequence.  This is true 
for both alternating and non-alternating controller 
configurations.

COOLING OPERATING SEQUENCES 

FOR ALTERNATING LEAD/LAG/LEAD/

LAG CONFIGURATION

1.  1-Stage Compressor Units No Economizer

1

st

 stage cooling setpoint is the setting (SP) input into 

the controller. Factory default is 77F (25C). On a call 
for cooling the blower of the lead unit will come on 
immediately (if not already on – See Blower Operation), 
and the Stage 1 LED will blink for 10-seconds before 
going solid, at which time the compressor will start. 

2

nd

 cooling setpoint is 4F (default setting, user 

selectable 2-6F) warmer than Stage 1. On a call for 2

nd

 

Stage cooling the blower of the lag unit is turned on (if 
not already on – See Blower Operation), and the Stage 
2 LED will blink for 10-seconds before going solid, at 
which time the compressor will start. 

3

rd

 and 4

th

 stages are functional outputs but there is 

nothing to be controlled.

2.  2-Stage Compressor Units No Economizer

1

st

 stage cooling setpoint is the setting (SP) input into 

the controller. Factory default is 77F (25C). On a call 
for cooling the blower of the lead unit will come on 
immediately (if not already on – See Blower Operation), 
and the Stage 1 LED will blink for 10-seconds before 
going solid, at which time the lead unit compressor will 
start in compressor Stage 1 partial capacity operation.

2

nd

 cooling setpoint is 4F (default setting, user 

selectable 2-6F) warmer than Stage 1. On a call for 
2

nd

 Stage cooling the blower of the lag unit is turned 

on (if not already on – See Blower Operation), and the 
Stage 2 LED will blink for 10-seconds before going 
solid, at which time the lag unit compressor will start in 
compressor Stage 1 partial capacity operation. 

3

rd

 cooling setpoint is 2F (default setting, user 

selectable 2-3F) warmer than Stage 2. On a call for 
3

rd

 Stage cooling the Stage 3 LED comes on solid (no 

delay), and the lead unit compressor will switch to 
compressor Stage 2 full capacity operation.

4

th

 cooling setpoint is 2F (default setting, user 

selectable 2-3F) warmer than Stage 3. On a call for 
4th Stage cooling the Stage 4 LED comes on solid 
(no delay), and the lag unit compressor will switch to 
compressor Stage 2 full capacity operation.

3.  1-Stage Compressor Units with Older EIFM    

 

Economizers (Enthalpy OD Sensor)

1

st

 stage cooling setpoint is the setting (SP) input 

into the controller. Factory default is 77F (25C). 
On a call for cooling the blower of the lead unit 
will come on immediately (if not already on – See 
Blower Operation), and the Stage 1 LED will blink 
for 10-seconds before going solid, at which time 
the lead unit Y1 cooling output turns on. If the 

Humidity controller setpoint should be in 50-60% 
relative humidity area:  Setting controller to lower 
settings will result in excessive operating time and 
operating costs for the electric reheat, and in extreme 
cases could cause evaporator (indoor) coil freeze-up 
if there are periods of light internal equipment (heat) 
loading.

 

     CAUTION

Содержание AB3000-A

Страница 1: ...02 SERIES SOLID STATE DUAL UNIT LEAD LAG CONTROLLER INSTALLATION INSTRUCTIONS REPLACEMENT PARTS LIST Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual 2100 614I Supersedes 2100 6...

Страница 2: ...ication Board 36 Alarm LED Display Board 37 Figure 19 Alarm Board Connections for Normally Closed NC Open On Alarm Strategy 38 Figure 20 Alarm Board Connections for Normally Open NO Close On Alarm Str...

Страница 3: ...90B and Air Conditioning Systems For more information contact these publishers ACCA Air Conditioning Contractors of America 1712 New Hampshire Avenue NW Washington DC 20009 Telephone 202 483 9370 Fax...

Страница 4: ...for special applications or user preference The MC4002 can be equipped with one of two alarm boards and these can be factory installed or installed at any time in the field if so desired Should the b...

Страница 5: ...the base sides and top of the controller TEMPERATURE SENSORS The standard local temperature sensor has 12 leads and comes installed from the factory A secondary sensor is located internally on the mai...

Страница 6: ...optional controller Field installed a These connections require either jumper or Normally Closed NC relay contact at the Fire Smoke and Generator interface for Controller to function Inputs Lockout 1...

Страница 7: ...located in the electrical control panel of the air conditioners being controlled by the lead lag controller To eliminate the 60 second blower off delay disconnect and isolate the wire that is factory...

Страница 8: ...SETTINGS Order Display Description Range Choice Default LSEn Temperature at local main sensor SP Cooling setpoint temperature 65 to 90F 18 to 32C 77F 25C db Deadband between cooling SP and heating set...

Страница 9: ...d cooling setpoint is 4F default setting user selectable 2 6F warmer than Stage 1 On a call for 2nd Stage cooling the blower of the lag unit is turned on if not already on See Blower Operation and the...

Страница 10: ...omizer 3rd cooling setpoint is 2F default setting user selectable 2 3F warmer than Stage 2 On a call for 3rd Stage cooling the lead unit economizer will continue to operate as long as outdoor conditio...

Страница 11: ...ompressor Stage 1 partial capacity operation 2nd cooling setpoint is 4F default setting user selectable 2 6F warmer than Stage 1 at which time the lead unit compressor will switch to compressor Stage...

Страница 12: ...y conditions are below the setpoint of the economizer control the lead unit economizer will operate instead of the compressor If outdoor conditions are not acceptable for free cooling the compressor w...

Страница 13: ...e in the economizer control module HEATING SEQUENCE OF OPERATION Note All heating sequences for air conditioners with electric heat or heat pumps will automatically operate in Alternating Lead Lag Lea...

Страница 14: ...rotocol TCP IP 4 Highlight Internet Protocol TCP IP and select Properties 5 Change the addresses as follows IP address 192 168 1 50 Subnet mask 255 255 255 0 Default gateway 192 168 1 1 Preferred DNS...

Страница 15: ...f a Dehumidification Active or not b Backup Generator Active or not if tied to generator run controls to inhibit lag unit operation during generator run c Alarm board connected or not d Controller sys...

Страница 16: ...back to the CB5000 default IP setting simply hold the reset button next to the Ethernet jack for 5 seconds then release Connect to Network 1 After initial set up using laptop computer disconnect compu...

Страница 17: ...changes Notification Setup Page The notification setup page is used to determine which alarms are remotely communicated to the offsite monitoring systems The CB5000 supports email notifications as wel...

Страница 18: ...3 buttons while the controller is in the normal operating run mode 2 Press and hold the Advance Change Save button and the Up and Down arrow buttons simultaneously for 20 seconds until the display sho...

Страница 19: ...Economizer with CB5000 Communication Board A C with 1 Stage Compressor WA WL W A W L 1 4 7 9 11 ECONWMT 14 ECONWMT A C with 1 Stage Compressor W AA W LA 2 5 N A N A 12 WECOP 15 WECOP A C with 2 Stage...

Страница 20: ...24V TERMINALS MUCT BE CONNECTED AS SHOWN A C 1 CONNECTIONS FOR 48 VDC UNIT 1 UNIT 2 LOCAL REM 1 W NUMBER 8612 023A GEN OPTIONAL ALARM BOARD IS POLARITY SENSITIVE AND 1 LEAD MUST CONNECT TO SENSOR 12 L...

Страница 21: ...Manual 2100 614I Page 21 of 43 FIGURE 3 Controller Connections 2 Stage WA S WL S Series Air Conditioners No Economizers...

Страница 22: ...Manual 2100 614I Page 22 of 43 FIGURE 4 Controller Connections 1 Stage WA WL W A W L Series Air Conditioners No Economizers with Alarm Board CB5000 Communication Board...

Страница 23: ...SILVER LEAD TO AG FIRE SMOKE ALARM CIRCUIT 24V TERMINALS MUCT BE CONNECTED AS SHOWN A C 1 CONNECTIONS FOR 48 VDC K UNIT 2 LOCAL REM 1 COPPER A C 2 GEN OPTIONAL ALARM BOARD IS POLARITY SENSITIVE AND 1...

Страница 24: ...Manual 2100 614I Page 24 of 43 FIGURE 6 Controller Connections 2 Stage WA S WL S Series Air Conditioners No Economizers with Alarm Board CB5000 Communication Board...

Страница 25: ...Manual 2100 614I Page 25 of 43 FIGURE 7 Controller Connections 1 Stage WA WL W A W L Series Air Conditioners with Older Style EIFM Economizers...

Страница 26: ...Manual 2100 614I Page 26 of 43 FIGURE 8 Controller Connections 2 Stage WA S WL S Series Air Conditioners with Older Style EIFM Economizers...

Страница 27: ...Manual 2100 614I Page 27 of 43 FIGURE 9 Controller Connections 1 Stage WA WL W A W L Series Air Conditioners with Older Style EIFM Economizers and with Alarm Board CB5000 Communication Board...

Страница 28: ...Manual 2100 614I Page 28 of 43 FIGURE 10 Controller Connections 2 Stage WA S WL S Series Air Conditioners with Older Style EIFM Economizers and with Alarm Board CB5000 Communication Board...

Страница 29: ...Manual 2100 614I Page 29 of 43 FIGURE 11 Controller Connections 1 Stage WA WL W A W L Series Air Conditioners with ECONWMT Economizers...

Страница 30: ...OCAL REM 1 REM 2 FIRE SMOKE OPTIONAL 48 VDC GEN FIRE SMOKE ALARM CIRCUIT IS POLARITY SENSITIVE AND MUCT BE CONNECTED AS SHOWN LEAD MUST CONNECT TO SENSOR 12 LEADS COPPER SILVER COPPER SILVER COPPER NC...

Страница 31: ...Manual 2100 614I Page 31 of 43 FIGURE 13 Controller Connections 2 Stage WA S WL S Series Air Conditioners with ECONWMT Economizers...

Страница 32: ...Manual 2100 614I Page 32 of 43 FIGURE 14 Controller Connections 1 Stage WA WL W A W L Series Air Conditioners with ECONWMT Economizers and with Alarm Board CB5000 Communication Board...

Страница 33: ...TS OPEN ON ALARM CU AND SILVER LEAD TO AG HUMIDITY CONTROLLER NOTE ALL SENSORS ARE NUMBER 8612 023A POLARITY SENSITIVE COPPER SENSORS BARD PART NOTE DC BACK UP POWER REMOVE JUMPER STANDARD LOCAL GENER...

Страница 34: ...Manual 2100 614I Page 34 of 43 FIGURE 16 Controller Connections 2 Stage WA S WL S Series Air Conditioners with ECONWMT Economizers and with Alarm Board CB5000 Communication Board...

Страница 35: ...Manual 2100 614I Page 35 of 43 FIGURE 17 Controller Connections Heat Pumps No Economizers...

Страница 36: ...Manual 2100 614I Page 36 of 43 FIGURE 18 Controller Connections Heat Pumps No Economizers and with Alarm Board CB5000 Communication Board...

Страница 37: ...to issue an alarm signal that the lead air conditioner is down or not delivering full capacity and that the lag air conditioner is now operating REFRIGERANT PRESSURE ALARMS Air conditioners with J con...

Страница 38: ...loose to protect it from possible damage during installation of the wiring to main controller board and or the alarm board It is polarity sensitive and is keyed so it can only be installed in correct...

Страница 39: ...loose to protect it from possible damage during installation of the wiring to main controller board and or the alarm board It is polarity sensitive and is keyed so it can only be installed in correct...

Страница 40: ...wn If no buttons are pushed within thirty 30 seconds the controller will automatically revert back to RUN mode To reset all controller settings to the factory default values press the PROGRAM button f...

Страница 41: ...efault is 77F 25C 5 Deadband between cooling and heating setpoint 2 to 40F or 1 1 to 22 2C Default is 17F 9 4C 6 Continuous blower operation None Lead Both Default is None 7 Degree display F or C Defa...

Страница 42: ...Manual 2100 614I Page 42 of 43 FIGURE 21 PARTS LIST DESCRIPTION DIAGRAM MIS 2954 B 15 3 4 5 12 7 9 2 6 13 14 11 16 18 8 10 1 17...

Страница 43: ...or X X X X X 7 8611 099 LTF Fitting X X X X X 8 5400 002 Hinge X X X X X 9 8612 023A Sensor X X X X X 10 7961 731 Label Keypad X X X X X 11 8611 006 Ground Lug 2 2 2 2 2 12 8612 047 Communication Boar...

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