MTW Direct Mount Operator
Overview
The Macon MTW thermostatic valve will help you balance your heating system. The MTW operator has one of the most accurate sensors available for radiator temperature control. The problems of overheating, underheating and wide temperature swings can now be minimized.
The MTW thermostatic valve by Macon Controls conserves energy by regulating temperature. Fuel costs can be reduced up to 30%!
The MTW is a self-acting adjustable non-electric thermostatic operator. It has an anti-freeze position, adjustable max./min. temperature settings, selected temperature locking feature and can be shutoff completely if desired. Each MTW thermostatic operator is individually calibrated and conforms to ASHRAE standardization rules for temperature regulation. The MTW’s smooth shape with narrow air gaps is a very functional design and allows for easy cleaning. The MTW can be mounted on all Macon NT series valves. Millions are in use throughout the world.
Specifications
| DATA: Temp. Range: 46° – 82°F Hystersis: 0.9°F Heat Transfer: 1.1°F (Valve Housing Sensor) Dead Time: 0.8 Minutes Max. Differential Pressure: 20 psi Suggested Differential Pressure = 0.5 to 2.9 psi Max. Water Temp.: 250°F Max. Storage & Ambient Temp.: 122°F Max. Steam Pressure: 15 psig Max. Movement: 0.125 inches Nominal Opening: 0.018 (3.6°F) Long Term Test: 5000 cycles (1.3°F) |
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| DIAL SETTINGS: 0 = Off * = 46°F (Frost Protection) 1 = 54°F 3 = 61°F 5 = 68°F 6 = 72°F 7 = 76°F 8 = 80°F 9 = 82°F |
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Min/Max Settings
Each unit is factory preset per the dial settings listed. If field adjustments are necessary see below.
Maximum setting
1. Turn the wheel to maximum and a red mark will occur in the indicating window (located opposite the dial setting window).
2. Push the mark in while turning the wheel to desired temperature according to chart below.
3. When desired temperature is reached, let go of the mark and the maximum temperature limit is set.
Minimum setting
1. Turn the wheel to minimum and a blue mark will occur in the indicating window (located opposite the dial setting window).
2. Push the mark in while turning the wheel to desired temperature according to chart below.
3. When desired temperature is reached, let go of the mark and the minimum temperature limit is set.
