Overview of Primary Product

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© 2014 Maxitrol Company, All Rights Reserved
Series 20 Basic System Options
Valves Amplier Selectrastat
Space Temperature
Selector
Space Temperature
Sensor
MR410, MR510,
MR610
A1010U
(replaces A1010A, B
or A1011A, B)
T120 TD120 TS120
SPACE HEATING APPLICATION - Series 20 System
SYSTEM COMPONENTS
Series 20 Amplier
A1010U
Modulator-Regulator Valves
MR410
3/8” and 1/2” pipe sizes
MR510
1/2” and 3/4” pipe sizes
MR610
3/4” and 1” pipe sizes
Selectrastat: selector and integral sensing
T120 - 60° to 85°F
Space Temperature Selector: selection only
TD120: 60° to 85°F - For use with
TS120
Optional: ETD-1 enclosure EFP-1
cover plate only - no enclosure
Space Temerature Sensor: remote sensing
TS120 - For use with TD120
SPECIFICATIONS
Transformer secondary must not be grounded in any
portion of the circuit external to a Maxitrol amplier. If
existing transformer is grounded, a separate, independent
transformer must be used. Electrical interference may
affect performance and/or damage equipment.
NOTICE
Power Requirements:
Single Furnace.....24V AC, 40VA capacity
Multiple Furnace.....24V AC, 100VA capacity
Temperature Control Range: 60º to 85ºF
Ambient Limits: -30º to 125ºF / -34º to 52ºC
Gases: Suitable for natural, manufactured, mixed gases,
liqueed petroleum gases, and LP gas-air mixtures.
Pressure Limits:
Inlet (maximum): MR410, 510, 610.....1 psi / 69 mbar
Outlet (maximum re)
standard spring*.....3.0” to 5.0” w.c. / 7 to 12 mbar
H - models..............7.5” to 12” w.c. / 19 to 30 mbar
Max. set point not to exceed 10” w.c. above min. set point
Outlet (minimum re)
standard spring*.....0.2” to 1.2” w.c. / .5 to 3 mbar
(-1) spring*............1” to 2.8” w.c. / 2.5 to 7 mbar
(*other spring ranges available - Consult Maxitrol Company.)