Brochure

SERIES 92 Amplier
A1092
Modulator Valves
Pipe Sizes:
M420........................3/8” & 1/2”
M520........................1/2” & 3/4”
M620.........................3/4” & 1”
Remote Temperature Selector
TD92-0509 - (50° to 90°F)
Discharge Temperature Sensors: use with Mixing Tube
TS194Q
Mixing Tubes: use with Sensor
Lengths:
MT1-9 or 2-9........................9”
MT1-12 or 2-12 ................. 12”
MT1-23 or 2-23 ................ 23”
MT1-28 or 2-28 ................. 28”
MT1-57.............................. 57”
Temperature Sensor
TS394-3B-48FQ
OPTIONAL: Room Override Thermostat
T115
The Selectra Series 92 system is used to obtain higher turndown
on indirect red applications.
Selectra systems maintain stable, precise temperatures. A
signicant improvement over mod motors and buttery valves
- M/MR valves provide instantaneous response and continual
pressure adjustment.
The TD92-0509 remote temperature dial controls a 50° to 90°F
range. It is similar in design to our popular TD94, but with no digital
readout. It has a 6-place terminal block for lead connections. The
A1092/A1192 amplier functions similarly to an A1094, but uses
standard wires (4) to connect to the TD92 instead of ribbon cable.
Maximum recommended wire length is 300ft.
Duct temperature sensing is by 1,000 ohm RTD such as TS394-
3B-48FQ or TS194Q (w/mixing tube).
An optional T115 room override thermostat, when used in
conjunction with the remote temperature selector, provides space
temperature control by raising the discharge air temperature to a
pre-selected point.
Upon request, Maxitrol can congure Series 92 components for
other desired temperature control ranges.
Pressure Limits for M420, M520, M620
Maximum Discharge Pressure............................7” w.c. (1.7 kPa)
Maximum Operating Inlet Pressure......................1.0 psi (7 kPa)
Maximum Emergency Exposure*...........................3.0 psi (21 kPa)
*May not function properly at this pressure, but will suffer no
internal damage.
Power Supply
A1092: Independent 24 VAC, 40VA, 50/60 Hz Class II transformer
A1192 Independent 24 VAC, 100VA, 50/60 Hz Class II transformer
NOTE: Transformer must have sufcient rating to cover amperage
load.
Gases
Suitable for natural, manufactured, mixed gases, liquied
petroleum gases, and LP gas-air mixtures.
Vent
M420, M520, M620: Vertical vent outlet 1/8” NPT - 12A06 installed
Electronic Gas Modulation System
DESCRIPTION
Series 92
SPECIFICATIONS
1
© 2012 Maxitrol Company, All Rights Reserved.
SYSTEM COMPONENTS
NOTICE
Maxitrol vent limiting devices eliminate the need to run vent
piping to the outside. Vent limiting devices are designed for
use indoors and in spaces where limiting the amount of gas
escapement due to diaphragm failure is critical. Vent limiting
devices should not be used outdoors if they are exposed
to the environment. Vent protector 13A15 is available for all
outdoor applications to ensure proper vent protection.