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- Overview
- Specifications
- Description
- Applications
- FEATURES
- INSTALLATION
- FAQ
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Overview
Place of Origin: |
USA |
Brand Name: |
HONEYWELL |
Model Number: |
T2798I-1000 |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Parameter |
Value |
|
Model |
T2798I-1000 |
|
Dimensions |
8.8 × 22.7 × 17.5 cm |
|
Weight |
2 kg |
|
Inputs (Analog) |
1 × PT1000 only |
|
Inputs (Digital) |
1 × dry contact |
|
Outputs (Analog) |
1 |
|
Outputs (Digital) |
1 |
|
Setpoint Range (Internal Sensor) |
10–50°C |
|
Setpoint Range (External Sensor) |
-20–110°C |
|
Power Supply |
AC 24V ±20%, 50/60 Hz, 2 VA |
|
Analog Output |
2–10 VDC or 4–20 mA |
|
Digital Output |
2 A, 24 VAC |
|
Mounting Type |
Direct wall mounting (standard electrical box) |
|
Terminals |
Plug-in screw terminals (up to 1.5 mm² wire) |
|
Operating Conditions |
0–50°C, 5–80% RH |
|
Storage Conditions |
-20–45°C, 5–95% RH |
|
Accuracy |
≤ ±0.3°C |
|
Remote Sensor |
RTD PT1000 |
|
Max Cable Length (Sensor) |
15 m |
Description
The Honeywell T2798I-1000 is a temperature controller. This standalone micro-controller based LCD temperature controller provides proportional plus integral (P+I) and on/off
temperature control for commercial Heating, Ventilating & Air Conditioning System such as Hydronic Heating, Air Handling Unit, Heat Exchanger or Condensing Tower. This controller also can realize various optional control functions including cool/heat changeover, heat/cool sequence control, emergency interlocking and auto-alarming control.
Applications
Semiconductor Plants: Precise temperature control for cleanroom HVAC airflow and return air regulation.
Biopharmaceutical Plants: External sensing enables strict monitoring and control of sterilization and incubation environments.
Automotive Paint Shops: Integrates with robot logic for coordinated airflow and climate control in spray and drying zones.
Precision Machinery Plants: Wall-mounted monitoring prevents thermal deformation in machining and inspection rooms.
Tobacco & Fermentation Plants: Compact wall unit controls ventilation and exhaust systems in high-humidity production areas.
FEATURES
PI (proportional plus integral) control provides accurate and stable temperature regulation.
Compatible with Series 70 direct-coupled damper and valve actuators.
Backlit LCD displays setpoint and measured temperature values.
Adjustable Zero Energy Band, On/Off Differential, Proportional Band, and Temperature Offset.
Analog output can be manually forced for installation and commissioning.
Supports optional 2–10Vdc or 4–20mA direct/reverse acting analog output.
INSTALLATION
The controller can be installed in any position on a flat surface using electrical box. To measure room
temperature by internal sensor and choosing wall mounting method, it is recommended to be
installed 1.5m (about 5 ft.) above the floor in the area at average temperature conditions. For all kinds of mounting method, the product must be installed in an area with good air circulation.
Do not install the controller where it may be affected by:
1. Draughts or dead air spots behind doors and in corners.
2. Hot or cold air from ducts.
3. Radiant heat from sun or appliances.
4. Concealed pipes and chimneys
FAQ
Q: How many analog inputs does T2798I-1000 have?
A: This model has 1 PT1000 analog input.
Q: What is the external sensor setpoint range supported by T2798I-1000?
A: Its external sensor setpoint range is -20–110°C.
Q: What is the power supply voltage of T2798I-1000?
A: Its power supply requirement is AC 24V ±20% (50/60 Hz).
Q: What is the digital output current rating of T2798I-1000?
A: Its digital output rated current is 2 A.
Q: What is the maximum allowed sensor cable length for T2798I-1000?
A: The maximum sensor cable length is 15 m.
