©2013 Thermaco, Inc. All rights reserved • Patented/Patents Pending • Specifications subject to change without notice
Thermaco, Inc. • 646 Greensboro St. • Asheboro, N. C. 27204-2548 • Phone (336) 629-4651
MNL-ASTPS14000 11
PROPERLY
DISPOSE OF
CONTENTS
DAILY
Big Dipper
®
AST System
Electrical Installation
Big Dipper
®
AST System Electrical Installation
Electrical Panel
(NOT SUPPLIED)
115 VAC Circuit,
From Ground Fault
Circuit Breaker
(NOT SUPPLIED)
*For 230 VAC Units use
230 VAC Circuit.
Duplex Outlet
(NOT SUPPLIED)
Big Dipper Automatic Solids Transfer (AST)
The Big Dipper W-250-AST model is equipped with
one (1) 24 Hour/96 Event time controller. The timer is
located under the hinged lid of the motor enclosure on
top of the lid of Big Dipper (See Timer Operation In-
structions). The Big Dipper should only be plugged
into a properly grounded 3 prong 115 VAC or 230
VAC outlet. If possible, the power supply outlet for
the Big Dipper should be connected to an electrical
circuit controlled by a ground fault circuit breaker.
There is a Power Indicator Light that will glow Red
if power is being fed to the unit. If this light is off,
power is not reaching the unit.
This Big Dipper unit is shipped from the Factory
wired for Simultaneous Operation. This means
the Heater and Motor operate at the same time un-
der timer control. Continuous Heater Operation
is where the Heater is active at all times. To switch
to Continuous Heater Operation, switch the RED
WIRE on the THERMOSTAT with the BLACK WIRE.
(Instructions are on the wiring Diagram in the electri-
cal enclosure.
Note: The Big Dipper unit will not operate when
the electrical module is removed.
Timer
(Under Hinged Lid)
Big Dipper Electrical Requirements
W-250-AST: 4.6 Amps @ 115VAC 60Hz (535 Watts)
W-250-AST-E: 2.3 Amps@230VAC 50Hz (535 Watts)
Water Supply
Connection
Note:
Time Clock Supplied with
system.
Drawing for reference only.
Equipment must be installed
in compliance with all appli-
cable laws, regulations and
codes, including electrical
codes. Installation should
be performed by a qualified
electrician.
Power Indicator Light
(Hidden)
