resideo R182J Installation Instructions Manual

R182J, R482J, R845A, R847A, RA89A,
RA832A Switching Relays
APPLICATION
These relays can be used for a variety of switching
applications. Typically they provide control of line- or
low-voltage devices by a low voltage controller. See
Table 1.
Models Application
R182J For 24V thermostat
control of line voltage
devices.
R482J Controlled by a line
voltage controller.
R845A For hot water zone
control systems or spst
control of two separate
loads.
R847A Provides switching for
high-current loads such
as cooling
compressors.
RA89A For switching one line
voltage load.
RA832A For switching two line
voltage loads with a
common power source.
a
IMPORTANT: The transformer on the R182 can over-
heat when used with a series 20 thermostat if the total
resistance of the thermostat circuit exceeds 2.5 ohms.
If the measured resistance of the thermostat (including
thermostat wire and thermostat contact resistance)
exceeds 2.5 ohms, add a 100 ohm, 10 watt resistor
between the W and R terminals. Table 2 gives maxi-
mum thermostat wire runs; if longer runs are neces-
sary, measure the resistance or add a 100 ohm,
10 watt resistor across terminals W and R.
Table 1. Switching Relay Specifications.
Voltage Switch Control
(50/60 Hz) Action
120 Dpdt 3-wire
240
120 2-wire
208/240
120 Dpst
120
240
120 Spst
120 Dpst
240
INSTALLATION INSTRUCTIONS
Coil Voltage
(Vac at
Circuit 50/60 Hz)
24
120
208/240
24
Table 2. Length of Wire.
AWG
Total Wire
Wire
Length
Size
(Number) Feet
22 120
20 200
18 300
16 500
14 800
Contact
Ratings (A)
Relay Coil
Current (A) AFL
7.4
a
0.40
3.7
0.08 7.4
0.04 3.7
0.40 7.4
22
10
10.2
7.4
3.7
Length of Run to
Thermostat
(Wires)
Meters Feet
38.0 60 18.0
61.0 100 30.5
91.5 150 45.5
152.5 250 76.0
244.0 400 122.0
69-0791EF-01
ALR
44.4
22.2
44.4
22.2
44.4
100
50
61.2
44.4
22.2
Meters