©2007 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-IS14000 9
®
Big Dipper
®
IS System Plumbing Installation
(For Installations With Head Height Greater Than 6 feet (1.95m))
For installations where there is a significant amount of head height (More than 6 ft./1.95 m),
Thermaco, Inc. recommends installation of the optional VFCA Vented Flow Control module.
Installations where head
height is greater than 6 feet
(1.95 m)
Big Dipper
®
IS Unit
NOTE: Drawing for reference only. Equipment must be installed in compliance with all applicable laws, regu-
lations and codes, including plumbing codes. Installation should be performed by a qualified plumber.
Drainage Piping
from Kitchen
VFCA-15 Vented Flow Control for W-150-IS
VFCA-20 Vented Flow Control for W-200-IS
VFCA-25 Vented Flow Control for W-250-IS
VFCA-35 Vented Flow Control for W-350-IS
VFCA-50 Vented Flow Control for W-500-IS
Big Dipper
®
IS System
Plumbing Installation
Flow Control Vent/Air Intake
(Note: Flow Control Vent may be independent direct connect
to atmosphere or code-approved air admittance valve. To
be installed above sink flood rim.)
NEVER CONNECT TO FACILITY VENT
Outlet Vent
(Note: Vent may be facility vent connection or
code-approved air admittance valve)
* Installation in high head height
locations requires removal of the
Internal Flow Control (small rub-
ber cap under no-hub coupling
over the Inlet).
Optional P-Trap
