WORLD PROVIDER - INNOVATIVE HEATING SOLUTIONS
411 Mason Street, Onalaska, WI 54650 • 800-345-7200 • 608-783-5691 • 608-783-6115 (fax) • www.lbwhite.com
Indoor Ventilation Kit
Therma Grow 120/220
120/220 Plus
View these instructions online at www.lbwhite.com
Tools required:
-- Electric drill with 1/8 in. drill bit
-- Electrical wire stripping / crimping tool
-- 1/4 in. and 5/16 in. nut drivers
-- Standard screwdriver
-- Small adjustable wrench
-- Saw
-- Level
Materials required:
-- Sealant caulk
-- Framing material (if needed)
-- Approved electrical wiring of proper gauge
-- Electrical fittings
-- Electrical junction box
-- Electrical tape
INSTALLATION INSTRUCTIONS
Qualifications for installation:
• You must read and understand these instructions before beginning the installation.
• You must have sufficient experience to install the kit and test for proper operation.
• All wiring must be done in accordance with local codes. In absence of local codes, follow ANSI/NFPA 70,
National Electrical Code.
General Information
Proper installation for heaters located within the greenhouse requires air exchange as follows:
An exhaust fan capable of providing the following discharge air:
-- Therma Grow™ 120/120 Plus heaters: 300 cfm.
-- Therma Grow™ 220/220 Plus heaters: 550 cfm.
A shuttered air inlet louver of 120 sq. in. area used with an L.B.White specified air inlet duct kit with restrictor plate.
The inlet shutter and exhaust fan must be electro-mechanically operated and electrically interlocked with the heater.
Discussion
This kit consists of a properly sized motorized air inlet shutter, flexible duct, and exhaust fan. All items must be installed when
the heater is located within the greenhouse.
Kit Contents:
DESCRIPTION
QTY.
Instruction
1
Inlet hood
1
Bag of terminals and hardware
1
Air inlet with transition duct
1
Motor, air inlet
1
Black 8 1/2 in. wire
1
Air proving switch
1
Exhaust fan
1
Duct kit (12 ft. x 6 in.)
1
