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444 | Mixung Expansion Module - Variable Speed/Floating Action/Modulating | Tekmar
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Overview
Details for 444
Mixung Expansion Module - Variable Speed/Floating Action/Modulating
The Mixing Expansion Module 444 is designed to operate a mixing device within a hydronic heating system as part of a tekmarNet® control system. It is capable of controlling a mixed system pump and six optional outputs for mixing: a variable speed injection pump, a floating action actuator, or an analog 0-10 V (dc), 2-10 V (dc), 0-20 mA, or 4-20 mA signal.
Features
- Powered variable speed injection pump
- Analog 0-10 V (dc) or 2-10 V (dc) output
- Powered 24 V (ac) system pump output
- Powered 24 V (ac) floating action output
- CSA C US certified for use in USA and Canada
- Powered 120 V (ac) system pump
- Requires a tekmarNet® 4 system control
- Analog 0-20 mA or 4-20 mA output
Specifications
Item Number | 444 |
Brand | Tekmar |
Category | tekmarNet Controls |
Agency Approvals | CSA C US, meets Class B: ICES & FCC Part 15 |
Ambient Conditions | Indoor use only, 32 to 104 degrees F (0 to 40 degrees C), RH less than or equal to 92 percent to 104 degrees F (40 degrees C), and 50 percent above 104 degrees F (40 degrees C), Altitude less than 9840 ft. (3000 m), Pollution Degree 2 |
Control Type | Microprocessor control, this is not a safety (limit) control |
Dimensions | 4-3/4" H x 2-7/8" W x 1-7/8" D (120 x 74 x 48 mm) |
Enclosure Material | White PVC plastic |
Enclosure NEMA Rating | Does Not Apply To Product |
Floating Output | 24 V (ac) 8 VA maximum, triac output, minimum 0.6 VA |
Hydronic - HVAC Control Type | Mixing Expansion Module |
Modulating Output | 0-20 mA / 4-20 mA, maximum 1k ohms load - current, 0-10V / 2-10 V (dc), minimum 10k ohms load - voltage |
Power Supply | 24 V (ac) plus / minus 10 percent, 50/60 Hz, 4 VA standby, 56 VA fully loaded |
Pump Relay | System pump relay - back 120 V (ac) 5A, 1/6 hp, front 24 V (ac) 2A |
Sensor | NTC thermistor, 10 k ohms at 77 degrees F (25 degrees C plus / minus 0.2 degrees C) Beta=3892 |
Variable Pump | 120 V (ac) 2.4 A, internal overload circuit T2.5 A 250 V |
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