Lift-master 90 T1 User Manual
APPLICATION REQUIREMENTS:
This wiring conversion is available to models T, GT, J, H, GH, SD, and GSD standard door operator with 24V
control circuits.
The operator must have B2 wiring (see last suffix of part number, ex. T-50-11-B2). If the operator does not
have B2 wiring, conversion kit number 71-B2 must be installed first. contact Link representative for this kit.
TIMER FUNCTIONS:
This wiring kit converts the control circuit of the door operator to function as follows:
1. Timer will close door (after a preset, adjustable interval) when the door is opened from certain or all
devices, but will leave door open when the door is opened by any other means. These devices are
designated by the terminal points to which they are connected.
2. Any device wired to activate the timer (as described above) will also reset the timer to the preset interval
if it is energized during the timing period.
3. An isolated contact will close approximately 10 seconds before the timer closes the door. A light or horn
may be connected to this contact to warn vehicles that the door is about to close. This contact is rated 3
amps at 115VAC. If the power rating of such device exceeds the contact rating, use a relay for interfacing.
4. A timer defeat switch may be used to disable the timer when it is not required.
PACKING LIST:
DESCRIPTION
RELAY, 24VAC, 3PDT
TIMER, DUAL FUNCTION 24V
TY WRAPS
LABEL FOR TERMINAL BLOCK
4 POSITION TERMINAL BLOCK
TINNERMAN NUT
#6-32 X 3/8” SELF TAP SCREW
#6-32 X 1-3/8” PH SCREW
#8-32 X 5/8” PHILLIPS SELF TAP SCREW
#6-32 LOCKNUT
#6 FLATWASHER
WIRE 8” ORANGE .250 SPADE X .187 FASTON (INSULATED)
WIRE, 13” BLACK, 1/4” INSULATED FASTON x .250 SPADE
WIRE, 13” RED, 1/4” INSULATED FASTON x .250 SPADE
WIRE, 13” YELLOW, 1/4” INSULATED FASTON x .250 SPADE
WIRE, 13” BLUE, STRIP x 1/4” INSULATED FASTON
WIRE, 3” BROWN .250 FORK x .250 FORK
WIRE, 12” RED .187 FASTON x .250 FORK (INSULATED FASTON)
WIRE, 24” RED .187 FASTON x .187 FASTON (INSULATED)
WIRE, 12” GREY .187 FASTON x .250 FORK (INSULATED FASTON)
WIRE, 14” BROWN .250 FORK x .250 FORK
WIRE, 27” YELLOW .250 FASTON x .250 FORK
MOV ASSEMBLY FOR USE WITH TIMER KIT
#8-32 SERRATED FLANGE NUT
WIRE 27” BROWN .250 FASTON (INS) X .250 DOUBLE FASTON
QUANTITY
1
1
16
1
2
2
1
1
2
1
2
1
2
1
1
1
1
1
1
1
1
1
1
2
1
PART NUMBER
24-24-6
26-200-1
27-10199
40-10222
42-104
84-ST-06
82-PX-06-06t
82-PX06-19
82-PX08-10T
84-LN-06
85-FW-06
95-OR08-68
95-BK13-69
95-RD13-69
95-YE13-69
95-BL13-19
95-BR03-66
95-RD12-68
95-RD24-88
95-GY12-68
95-BR14-66
95-YE27-46
76-29V30500
84-FN-08
95-BR27-9G
Timer Kit
Used For 90-T1 and 90-T2
WIRING CONVERSIONS
2
INSTALLATION INSTRUCTIONS
1. COMPONENT MOUNTING
Familiarize yourself with the component layout in the electrical box of the operator and the new parts included
with this kit. It is recommended that components not be mounted until the modification is complete.
a. Locate the existing R1 RELAY (DPDT) on the side
wall of the electrical box and remove. Replace with the
new R1 RELAY (3PDT) and reconnect the wires as
shown in this figure.
b. Mount the TIMER on back wall across from the
terminal block using #6-32 x 1-3/8” pan head screw. Be
sure to leave timer adjustment knob at top where it’s
accessible.
NOTE: On single phase operators it may be necessary
to reposition the instant reverse (IR) relay to the
opposite wall to clear terminal block and timer.
c. Mount the 4 position TERMINAL BLOCK on the back
wall above the 10 position terminal block, use the holes
that are 1” from the top lip of the box. Use (2) #10-32 x
5/8” long self tapping screws to secure in place. Align
and install terminal markers. Refer to electrical box
layout below for location of components in the box.
TYPICAL ELECTRICAL BOX LAYOUT
RED
RED
ORANGE
ORANGE
PURPLE
PURPLE
NEW R1 RELAY
(wires from old R1 relay)
COIL
4 POLE
TERMINAL
BLOCK
10 POLE
TERMINAL
BLOCK
TIMER
R1 RELAY (3PDT)
AUX. OPEN
LIMIT SWITCH
RADIO
TERMINAL
BLOCK
(if supplied)
L3
L2
L110123457
CONTACTOR
XFMR
MOV
A1
A2
NOTE: Before you start modification, test all operator functions, then disconnect power.
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