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Self Tapping Screw
(Step 8)
On-Off Handle
Cover
(Step 5)
3 Pole Disconnect Switch
3 Pole Terminal Block w/Ground (Step 11)
Chase Nipple and Gasket
(Step 6)
Cover
(Step 3)
Mounting Bracket
(Step 4)
3/8" Lockwasher and Nut
(Step 4)
Opening for 1" Cord Fitting
(Step 11)
INSTALLATION INSTRUCTIONS
INSTRUCTIONS FOR INSTALLING DISCONNECT SWITCH ON
6 AND 13.5 KW PORTABLE RADIANT HEATERS
1. Addition of the disconnect switch assy must be done by a qualified electrician.
2. The disconnect switch kit includes the following parts.
Verify that all parts are included, if not, contact the Chromalox Service Dept.
(1)Disconnect Switch Assy
(2)Mounting Bracket
(3)Hardware Kit:
Two 3/8” Lockwashers
Two 3/8” Nuts
One Self Tapping Screw
One Gasket for Cord Fitting (Supplied Separately)
3. Remove the screws in the heater terminal box. Remove cover.
4. Place mounting bracket over 3/8” studs as shown. Place lockwashers on studs and secure in place
with 3/8” nuts.
5. Remove cover from disconnect switch assy using same method as Step 3.
6. Remove Chase nipple and gasket from opening end of disconnect switch assy. Slide Chase nipple
through hole in heater terminal box and then gasket over threads.
7. Thread Chase nipple into threaded coupling. Hand tighten only.
8. LIne up hole in bottom of disconnect switch housing with hole in mounting bracket. Tap 10-32 x
1/2” long screw into mounting bracket.
9. Wrench tighten Chase nipple installed in Step 6.
10.Uncoil three (3) leads marked “1”, “2”, and “3” located in disconnect switch housing. Thread these
three (3) leads through the nipple. Attach leads to the terminals indicated on the heater wiring label
located on the cover of the heater. If using for single phase, cap off lead marked “3”.
11.Attach cord assy to the opening in the disconnect switch housing. Connect leads of cord to termi-
nal block.
12.Inspect all wiring to make sure all connections are tight, adequate electrical clearances exist, and
all electrical practices are met.
13.Install both covers.
Drawing shows 6 kW heater.
13.5 kW heater steps are identical.