Description
The thermostat 528 operates a single hydronic heating zone. It can be equipped with an optional outdoor sensor or floor sensor using the sensor input.

  • Control: Microprocessor PID control; This is not a safety (limit) control
  • Enclosure: Enclosure J, white PVC plastic
  • Dimensions: 2-7/8" H x 2-7/8" W x 13/16" D (73 x 73 x 21 mm)
  • Approvals: CSA C US, CSA/UL 61010-1, meets Class B: ICES and FCC Part 15
  • Ambient Conditions: Indoor use only, 36 to 122°F (2 to 50°C), RH max 80% up to 88°F (31°C) decreasing linearly to 50% RH at 104°F (40°C), Altitude 0 - 6560 feet (2000 m), Installation Category II, Pollution Category 2
  • Power Supply: Provided by tN2 Zone Manager or tN2 Wiring Center
  • W Relay: 24 V (ac) 2 A
  • Sensors: NTC thermistor
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Specs
Application:
Heat Only
Stages:
1 Heat
Programmability:
Non-Programmable
User Interface:
Push Button
Mount:
Horizontal
Options:
Works with Sensor
Large Display
Power Method:
Hardwired
Voltage:
24v
Temperature Range (F):
36-122
Voltage:
Low voltage
Amperage:
2
Color:
White
Height:
2-7/8"
Width:
2-7/8"
Depth (Inches):
13/16"
Weight (lbs):
.8 lbs
Power Supply:
Provided by tN2 Zone Manager or tN2 Wiring Center
Ambient Conditions:
Indoor use only 32 to 122°F - RH less than or equal to 80% to 88°F down to 50% from 104 to 122°F
Control:
Microprocessor PID control
Enclosure Type:
J
Sensors:
NTC Thermistor 10 k ohm @ 77°F
Relays:
24 V (ac) 2 A
Package Type:
Accessories
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