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Bard MC500 Series User Manual
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Bard Manufacturing Company
, Inc.
Bryan, Ohio 43506
www
.bardhvac.com
Manual: 2100-746D
Supersedes: 2100-746C
Date: 2-5-21
INST
ALLA
TION AND
OPERA
TION
INSTRUCTIONS WITH
REPLA
CEMENT P
AR
TS LIST
MC5000 Series Controller
Models:
MC5300: Controls up to Three Units
MC5600: Controls up to Six Units
2
4
Table of Contents
Default Chapter
4
Table of Contents
4
General Information
6
Shipping Damage
6
General
6
Theory of Operation
6
Controller Certifications
6
Getting Other Information and Publications
6
Control System
7
Controller and Accessories
7
Optional Sensors
7
Installation
8
FIGURES and TABLES Figure 1 Typical MC5000 Component Location
8
MC5000 Series Controller
9
Mounting the MC5000 Series Controller
9
Figure 2 MC5000 Controller Dimensional Drawing
9
Figure 2
9
Installing Remote Temperature Sensor(S)
10
Figure 3 Controller Grounding Lugs
10
Figure 4 Optional Remote Temperature Sensor Installation
10
Engineered Features
11
Touch Screen
11
Figure 5 MC5000 Series Touch Screen Interface
11
Main Control Board (MC5300 and MC5600)
12
Secondary Control Board (MC5600 Only)
13
Main Alarm Board (MC5300-BC and MC5600-BC)
14
Secondary Alarm Board (MC5600-BC Only)
15
Setup
16
Guided Setup
16
MC5000 Equipment Setup Menu Descriptions
16
MC5000 Controller System Setup Menu Descriptions
16
Equipment Setup Menu
16
System Setup Menu
17
Date/Time Setup Menu
17
Comfort Mode
17
System Status
17
Cooling Set Points
17
Heating Set Points
17
Comfort Mode Cooling Set Points
17
Comfort Mode Heating Set Points
18
Dehumidification Level Set Points
18
Humidification Level Set Points
18
Cooling Interstage Differential Set Points
18
Cooling Stage off Differential Set Points
18
Heating Interstage Differential Set Points
18
Heating Stage off Differential Set Points
18
Dehumidification Interstage Differential Set Points
18
Dehumidification Stage off Differential Set Points
18
Humidification Interstage Differential Set Points
19
Humidification Stage off Differential Set Points
19
High Humidity Alarm Set Points
19
Low Humidity Alarm Set Points
19
Low Temperature Alarm Level Set Points
19
High Temperature Alarm Level 1 Set Points
19
High Temperature Alarm Level 2 Set Points
19
Heat Pump Lockout Range Set Points
19
Operation
20
Basic Controller Specifications/Features
20
Temperature Sensors
20
Temperature Sensor Logic
20
Basic Controller Input/Output Specifications
21
Alarm Board Specifications/Features
21
MC5000 Alarm Board I/O
21
Alarm Board Contacts
21
MC5000B W/Enhanced Version Alarm Board
22
Plus MC5000A Inputs/Outputs
22
Low Voltage Field Wiring
22
Controller Grounding
22
Controller Power-Up
22
Emergency off
22
Staging Delay Periods
22
Blower Operation
22
Pre-Purge
22
Pre-Purge Setup
22
Lead/Lag Rotation
23
Cooling Sequence of Operation
23
Heating Sequence of Operation
23
Electric Heat
23
Heat Pumps
23
Humidity Control Option
26
Dehumidification Sequence
26
Figure 6 Mechanical Dehumidification
26
Mechanical Sequence
26
Humidification Operation
27
Synchronized Sequence
27
Staging
27
Figure 7 Synchronized Dehumidification
27
Staging Sequence
27
Adjustable Interstage Differential
28
Adjustable off Differential
28
Cooling Staging
28
Cooling with Economizer
28
Figure 8 Heating Staging
28
Figure 9 Cooling with Six Single Stage Units (W/Economizers)
28
Heating Staging
28
Figure 10 Cooling with Six Single Stage Units (W/Economizers) Using Twinning/Pairs Option
29
Figure 11 Cooling with Six Single Stage Units (W/Economizers) Using Twinning/Triples Option
29
The Advantages of Twinning: Pairs
29
The Advantages of Twinning: Triples
29
Humidification/Dehumidification Demand Staging
30
Alternating/Non-Alternating Set up
30
Alternating
30
Alternating/Non-Alternating Logic
30
Non-Alternating
30
Figure 12 Alternating Sequence Cooling
31
Figure 13 Non-Alternating Sequence Cooling
31
Figure 14
32
Twinning: Simultaneous Unit Operation
32
Figure 15
33
Triples: Simultaneous Unit Operation
33
Alarm Functionality
34
Test Mode
36
Manual Test
36
Self Test
36
Network/Remote Connectivity
36
Remote Connectivity
36
Setup
36
Touch Screen Display IP Configuration
36
Figure 17
37
Webpage IP Configuration
37
Figure 18
38
Navigational Side Pane
38
Webpages
38
Modbus
39
Connections Diagrams
44
Figure
44
And no Ventilation W/Balanced Climate
44
No Ventilation or Balanced Climate
45
Figure 21
47
No Ventilation W/Balanced Climate
48
Figure 22
48
W**H Series Unit W/Economizer
50
Figure 24
50
Figure 26
52
Figure 27
53
2-Stage W*SA* Series Unit W/Economizer
53
Figure 28
54
Figure 29
55
Figure 30
56
Troubleshooting
57
Humidity Sensor (8408-059)
57
Figure 31
57
Verifying Sensor LED Is Illuminated
57
Sufficient Airflow Across Remote Sensor
57
Checking Remote Temperature Sensor 8301-095
58
Troubleshooting Alarms
59
MC5000 Replacement Parts List
61
4
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Bard MC500 Series Specifications
General
Brand
Bard
Model
MC500 Series
Category
Controller
Language
English
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