L4064B, L4064R UNIVERSAL COMBINATION FAN AND LIMIT CONTROLLERS
69-0115—11
2
Do not exceed the following electrical ratings
(amperes):
Table 1. Electrical Ranges
Pilot Duty: 2 A at 24 Vac; 0.25 A at 0.25 to 12 Vdc.
Maximum Combined Connected Load: 2000 VA. 75 ºC
(167 ºF) (min.) field wiring required. Wiring must
conform to NEC Class 1 requirements.
Approval
— IP20 compliance
— Classified as TR/TW
— CSA certified file #095329
— UL listed file #MP3387
— DVGW certified ID-No:
CE-0085BM0320 for B type only
LOCATION
If this is a replacement installation, locate the L4064
in the same location as the control being replaced.
Sensing tube length should be same as old control. If
this is a new installation, the element should be
installed only by a trained, experienced service
technician according to the furnace manufacturer’s
instructions. The element must not touch any internal
part of the furnace.
NOTE:
The electrical rating is at maximum switch
temperature of 190 ºF (88 ºC). If plenum sur-
face temperature exceeds 190 ºF (88 ºC),
heat insulating material or mounting bracket
must be used.
MOUNTING
The devices may be mounted as follows:
L4064B — Swivel mount
L4064R — Swivel mount
Fig. 1. Surface mounting for L4064B requires a
13/16 in. (20.6 mm) hole.
Surface Mounting (Fig. 1)
L4064B—Hole in plenum should be just large enough
to accommodate the 3/4 in.(19.1 mm) diameter
element tube. A 13/16 in. (20.6 mm) diameter hole is
recommended.
1.
Remove cover by removing screw, squeezing
sides and pulling off. Insert element in plenum
and mark location of mounting holes. Make sure
the case is snug against the plenum before
marking the mounting holes.
2.
Punch or drill holes for mounting screws.
3.
Place insulation between plenum and case
if necessary.
4.
Fasten controller securely with mounting
screws.
Swivel Mounting (Fig. 2)
The L4064B and L4064R may be swivel-mounted. The
swivel bracket requires a 1-9/16 in. (39.7 mm) hole in
the plenum.
1.
Use bracket as a template to make the location
of mounting holes in plenum. Drill or punch
holes for mounting screws.
2.
Fasten the bracket in place with furnished
screws. Start the screws but do not tighten.
3.
Insert element tube through bracket, straighten
controller, and fasten. Tighten the mounting
screws securely. It may be necessary to rotate
the bracket to tighten all screws securely.
Fig. 2. Swivel mounting requires a 1-9/16 in.
(40 mm) diameter mounting hole for element
insertion.
120 Vac
240 Vac
FAN
LIMIT
FAN
LIMIT
Full Load
14
8
7
4
Locked
Rotor
84
48
42
24
ADD HEAT
INSULATING
MATERIAL IF
NEEDED
FURNACE
PLENUM
M31163
M31164
FURNACE
PLENUM
REQUIRE 1-9/16 IN
[39.7mm] DIAMETER
HOLE IN PLENUM
32612A SWIVEL
BRACKET
