Page 1
PRODUCT DATA &
04/27/12
INSTALLATION
Bulletin B40-BLC-PDI-4
1068827
Lead Lag
Control Panel
Model BLC1 / BLC2
Electrical Power: 115/1/60,
208-230/1/60,
Latest product updates and further information
at www.ballyrefboxes.com
NOMENCLATURE
BLC 1 - I S2 A
200-220/1/50
• For use on TWO independent refrigeration
systems using pumpdown control mode.
(Thermostat wired into liquid line solenoid valve).
• Panel can be mounted at condensing unit on indoor
installations or can be mounted remote inside on a
wall when used with outdoor condensing units.
• Designed to alternate each system automatically
at a preset 24 hour time period. (can be readjusted
from a 6 to 300 hour time period).
Three position toggle switch provides:
1. Condensing Unit #1 runs only.
2. Lead Lag mode. (alternates unit #1 and unit #2
automatically).
3. Condensing unit #2 runs only.
Model
Bally Lead Lag
Control Panel
Model Code
1 = Standard
2 = With Alarm/Auto Back-Up
Application
I = Indoor
Voltage
S1 = 115/1/60
S2 = 208-230/1/60
S6 = 200-220/1/50
Series / Generation
A = 1st Generation
• BLC1 model offers low cost simple operation by
automatically (pre-set time) or manually alternating
each unit.
• BLC2 model offers the same as BLC1 and includes
supplemental refrigeration backup during abnormal
load situations or in the event one refrigeration
system fails. (Includes alarm dry contacts)
• Panel is suitable for use with Air, Electric and Hot
Gas defrost systems.
• Custom designed panels available to suit any
specic customer requirement (contact factory)
Page 2
BLC1
B40-BLC-PDI-4
- 2 -
04/27/12
PANEL LEAD-LAG WIRING -
BLC1
Page 3
BLC1
B40-BLC-PDI-4
- 3 -
04/27/12
SYSTEM LEAD-LAG WIRING -
BLC1
Page 4
BLC2
B40-BLC-PDI-4
- 4 -
04/27/12
PANEL LEAD-LAG WIRING -
BLC2
Page 5
BLC2
B40-BLC-PDI-4
- 5 -
04/27/12
SYSTEM LEAD-LAG WIRING -
BLC2
Page 6
BLC2
B40-BLC-PDI-4
- 6 -
04/27/12
DETAILED SYSTEM LEAD-LAG WIRING -
BLC2
LEAD/LAG 2 PANEL AND EVAP. WIRING
Page 7
BLC2
B40-BLC-PDI-4
- 7 -
04/27/12
OPTIONAL FIELD WIRING
FOR PANEL POWER LOSS - BLC2
Page 8
R
SERVICE PARTS LIST (50/60Hz)
04/27/12
BLC
BLC1 & BLC2
DESCRIPTION 120V 230V
Timeclock power Contactors (C1, C2) 1043345 1049602
Lead-Lag Timer (Dual volt/Freq) - T1 1065232 1065232
11 Pin Socket Base 1065233 1065233
Control Relay (R3) 1047767 104534
8 pin Socket Base 1062258 1062258
Lead / Lag Relay (R1, R2) 1043345 1049602
3 Position Toggle Switch 1067407 1067407
BLC2 ONLY
DESCRIPTION 120V 230V
Lead-Lag Timer (Dual volt/Freq) - T2 1065232 1065232
Control Relay (R4, R5) 1047767 104534
Alarm Temperature Control 1085500 1085500
Lamp - Red 1090031 1090273
Lamp - Green 1090032 1090274
Lamp - Amber 1090033 1090275
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General Sales, Parts & Service Manufacturing & Engineering
135 Little Nine Drive, Morehead City, NC 28557
252-240-2829 • 1-800-24-BALLY • FAX: 252-240-0384
e-mail: ballysales@ballyrefboxes.com • www.ballyrefboxes.com
Due to Manufacturer’s policy of continuous product improvement,
the Manufacturer reserves the right to make changes without notice.
T
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