Prestige® IAQ and Prestige® 2.0
Thermostats
APPLICATION
The Prestige IAQ and Prestige 2.0 are 7-Day programmable thermostats with auto changeover that are designed for single stage and multistage control of conventional and heat pump equipment such as rooftop units and split systems in residential and commercial applications. The thermostats control up to 3 heat / 4 cool conventional systems and up to 4 heat / 2 cool heat pump systems. The thermostat controls humidification, dehumidification, ventilation, an economizer and a lighting panel. Prestige IAQ has universal sensor inputs that
are used with remote indoor air temperature sensor(s), an outdoor air temperature sensor, a discharge air temperature sensor, a return air temperature sensor, an occupancy sensor for remote setback and dry contact devices for displaying alerts.
•The thermostats are equipped with a 16:9 touchscreen TFT color display (WQVGA - 480 x 272 pixels).
•Provides a USB port to upload Dealer Information, Custom Reminders, Custom Event Schedules, Holiday Schedule and
Software Updates* and to download Data Logs.
•Provides remote access to the thermostat when used with the RedLINK internet gateway.
•Provides control using optional remote temperature and humidity sensors.
•Prestige IAQ integrates with the Niagara-AX framework.
* Software Updates only applies to Prestige IAQ.
SPECIFICATIONS
Terminal Designations:
Equipment Interface Module: R, RC, RH, C, W-O/B, W2-AUX 1, W3-
AUX 2, Y, Y2, G, A-L/A, U1 U1, U2 U2, U3 U3, S1 S1, S2 S2, S3 S3, S4 S4, A, B, C, D
THX9421 Thermostat: R, C
THX9321 Thermostat: R, RC, C, W-O/B, W2-AUX/E, Y, Y2, G, A-L/A, K,
U1 U1, U2 U2
SUBMITTAL SHEET
Electrical Ratings (for THX9321 and Equipment Interface
Module):
Terminal |
Voltage |
Max. Current |
|
(50/60 Hz) |
Rating |
|
|
|
W - O/B |
18 to 30 VAC |
1.00A |
|
and 750 mVDC |
|
Y (cooling) |
18 to 30 VAC |
1.00A |
G (fan) |
18 to 30 VAC |
0.50A |
W2 - Aux 1 (heating) |
18 to 30 VAC |
0.60A |
|
|
|
W3 - Aux 2 (heating) |
18 to 30 VAC |
0.60A |
Y2 (cooling) |
18 to 30 VAC |
0.60A |
A-L/A (Output) |
18 to 30 VAC |
1.00A |
(U1, U1), (U2, U2), (U3, U3) |
18 to 30 VAC |
0.50A |
Power Consumption of THX9421/THX9321 Thermostat:
Full brightness = 3.0 VA 1/2 brightness = 2.1 VA
Backlight off = 1.9 VA
Power Consumption of Equipment Interface Module: 2.0 VA
RedLINK Communication:
Frequency: 900 Mhz frequency range
Re-Sync Time: RedLINK devices re-establish communication within 6 minutes after AC power resumes.
Temperature Setting Range:
Heating: 40 to 90 °F (4.5 to 32 °C)
Cooling: 50 to 99 °F (10 to 37 °C)
Temperature Sensor Accuracy:
± 1.5 °F at 70 °F (0.75 °C at 21.0 °C)
Humidification Setting Range: 10% to 60% RH Dehumidification Setting Range: 40% to 80% RH
Humidity Display Range: 0% to 99%
Humidity Sensor Accuracy:
± 5% RH from 30% to 50% RH at 75 °F (24 °C)
Cool Indication:
Displays “Cool On” when the thermostat turns the cooling on.
Job Name |
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Model(s) |
Qty. |
THX9421R5021WG |
Qty. |
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Engineer |
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THX9421R5021WW |
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THX9421R5021BB |
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THX9321R5030 |
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Mechanical Contractor |
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THX9421R5021SG |
|
THM5421R1021 |
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Contractor’s P.O. No. |
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Approval |
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Representative |
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Service |
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Notes |
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Tag No. |
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33-00017-01
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