Bard MV4000 installation instructions Contents

CONTENTS

Getting Other Information and Publications	3
MV4000 General Information
Shipping Damage	4
General	4
Theory of Operation	4
Controller Certifications	4
Specifications/Features for MV4000 Series Controller
MV4000 Controller	5
Mounting the Controller
Installation Instructions	5
Temperature Sensors
Two Optional Sensor Inputs	5
Temperature Sensor Logic
Using Multiple Sensors	5
Controller Input/Output Specifications
MV4000 Controller Connections	6
Located in the MV4000 Panel Box
Unit #1 & Unit #2 Terminal Block	6
Specifications/Features for Alarm Boards
MV4000-B with Enhanced Version Alarm	7
Low Voltage Field Wiring
Circuitry in the MV4000	7
Controller Grounding
Earth ground	7
Controller Power-Up
Time Delay on Power-Up	7
Fire Suppression Circuit
Disabling the MV4000	8
Staging Delay Periods
Stages 1 - 4	8
Blower Operation
Various Blower Options	8
Advance (Swap) Lead/Lag Unit Feature
Manual Switching of Units	8
Accelerate Timer Feature
Testing the Timer Function	8
General Programming Overview
Buttons & Function	9
Humidity Control Option
Adding Optional Humidity Control	10
Cooling Operating Sequences
for Alternating Lead/Lag/Lead/Lag Config	10-11
Cooling Operating Sequences
for Non-Alt Lead/Lead/Lag/Lag Config	11-12
Heating Sequence of Operation	12-13
Specifications Opt. Remote Comm. Board
CB4000 Communications Board	13-14
Controller Wiring
Refer to Connection Diagram	15
Security (Locking) Feature
Locking and Unlocking the MV4000	15
Generator Run / Economizer Shutdown Feature
Standby Generator Disable Operation	15
Backup DC Power Connection
Input Connections Available	15

Econ. Failure & 2-Compressor Run Alarm		24
Alarm Wiring		24
2nd Stage Cooling Alarm		25
Refrigerant Pressure Alarms		25
Emergency Ventilation Sequence		25
Programming Instructions		28
Figures
Figure 1	Controller Connections 1-Stage (H**A/L
Series) A/C w/No Economizers		16
Figure 2	Controller Connections 2-Stage (HA*S/HL*S
Series) A/C - No Economizers		17
Figure 3	Controller Connections 1-Stage (H**A/L
Series) A/C - No Econ. w/Alarm Board & CB4000
Comm. Board		18
Figure 4	Controller Connections 2-Stage (HA*S/HL*S
Series) A/C - No Econ. w/Alarm Board & CB4000
Comm. Board		19
Figure 5	Controller Connections 1-Stage (H**A/L
Series) A/C w/ECONWMT Econ		20
Figure 6	Controller Connections 2-Stage (HA*S/HL*S
Series A/C w/ECONWMT Econ		21
Figure 7	Controller Connections 1-Stage (H**A/L
Series) A/C w/ ECONWMT Econ. & w/Alarm Board &
CB4000 Comm. Board		22
Figure 8	Controller Connections 2-Stage (HA*S/HL*S
Series A/C w/ECONWMT Econ. & w/Alarm Board &
CB4000 Comm. Board		23
— — —	Alarm LED Display Board	24
Figure 9	Alarm Board Connections for Normally
Closed "NC" Open-On-Alarm Strategy		26
Figure 10	Alarm Board Connections for Normally Open
"NO" Close-On-Alarm Strategy		27
— — —	MV4000 Label	29
Figure 11	Parts List Description Diagram	30
Tables
Table 1	Hook-Up Diagram Selection	16
Table	Parts List	31

Manual	2100-571A
Page	2 of 31