Brochure
63-8702 25
RedLINK
®
Accessories
THM5421 Prestige
®
2-Wire IAQ Comfort System Equipment Interface
Module
THM5421 Equipment Interface Module for Prestige
®
IAQ and
VisionPRO
®
8000 with RedLINK
®
. Equipment Interface Module
controls up to 4-stages of heat and 2-stages of cool in a heat
pump system and up to 3-stages of heat and 2-stages of cool in a
conventional system. Three sets of Universal IAQ contacts to control
humidification, dehumidification, and ventilation. Four sensor inputs
for wired sensors or dry contact devices.
Applications: Gas, oil, electric, heat pump, forced warm air, hot water,
steam or gravity
Mounting: Vertical
Color: Gray
Operating Temperature Range: -40°F to 165°F (-40°C to 73.9°C)
Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
Power Method: Hardwired
Supply Voltage: 18 to 30 Vac
Frequency: 50 Hz; 60 Hz
Electrical Connections: Screw terminals
Electrical Ratings: 18 to 30 Vac
Dimensions: 9-5/16 in. High, 4-13/16 in. Wide, 1-5/8 in. Deep
(237.4 mm High, 122.5 mm Wide, 40.6 mm Deep)
Cool Current: 1.0 A running
Heat Current: 1.0 A running
Fan Current: 0.5A running
®
Material Number Terminal Designations Stages Includes Used With
THM5421R1021/U R, RC, RH, C, W-O/B, W2-AUX1,
W3-AUX2, Y, Y2, G, A-L/A, U1,
U1, U2, U2, U3, U3, S1, S1, S2,
S2, S3, S3, S4, S4, A, B, C, D
Up to 4 Heat / 2 Cool Heat
Pump or Up to 3 Heat / 2 Cool
Conventional
THM5421R1021 Equipment Interface
Module
All Prestige
®
IAQ Thermostats and the
VisionPRO
®
Thermostats with RedLINK
technology.
YTHM5421R1010/U R, RC, RH, C, W-O/B, W2-AUX1,
W3-AUX2, Y, Y2, G, A-L/A, U1,
U1, U2, U2, U3, U3, S1, S1, S2,
S2, S3, S3, S4, S4, A, B, C, D
Up to 4 Heat / 2 Cool Heat
Pump or Up to 3 Heat / 2 Cool
Conventional
THM5421R1021 Equipment Interface
Module and 2 Duct Sensors
All Prestige
®
IAQ Thermostats and the
VisionPRO
®
Thermostats with RedLINK
technology.
ERM5220R Equipment Remote Module
ERM5220R Equipment Remote Module provides wireless RedLINK
communication between condensing unit/compressor or boiler and
thermostat. Use it whenever it’s too costly or time-consuming to run
wires from a condensing unit or boiler to control devices. Suitable for
outdoor use. Temperature sensor terminals for outdoor temp sensors
or indoor freeze protection. LEDs for easy installation checkout.
Applications: Gas, oil, electric, heat pump, forced warm air, hot water,
steam or gravity
Mounting: Vertical
Color: Gray
Operating Temperature Range:
Compressor: -40°F to +155°F (-40°C to +68°C)
Boiler: 30°F to +130°F (-1°C to +54°C)
Operating Humidity Range (% RH): 5 to 99% RH, non-condensing
Power Method: Hardwired
Supply Voltage: 24 Vac
Frequency: 50 Hz; 60 Hz
Electrical Connections: Screw terminals
Electrical Ratings: 24 Vac
Dimensions: 6-39/64 in. High, 6-7/8 in. Wide, 1-31/64 in. Deep
168 mm High, 175 mm Wide, 38 mm Deep
®
Material Number Terminal Designations Stages Includes Used With
ERM5220R1018 J, R, C, Y, Y2, O/B, D, L,
S1, S1
Up to 2 Heat / 2 Cool Heat Pump or
Up to 2 Stage Conventional
ERM5220R Equipment Remote Module THX9421R5021, TH8321R1001 and
EIM (when EIM is required).
YERM5220R8321 ERM-J, R, C, Y, Y2, O/B,
D, L, S1, S1
Up to 2 Heat / 2 Cool Heat Pump or
Up to 2 Stage Conventional
ERM5220R1018 Equipment Remote Module
and TH8321R1001 VisionPRO 8000
YERM5220RVPEIM ERM-J, R, C, Y, Y2, O/B,
D, L, S1, S1
Up to 2 Heat / 2 Cool Heat Pump or
Up to 2 Stage Conventional
ERM5220R1018 Equipment Remote Module,
TH8321R1001 VisionPRO 8000, and
THM5421R1021 Equimpent Interface Module