Electronic Temperature Reset Module (Without Relay) A350S
Model DeSCrIpTIon
The A350S Reset Module is designed to raise or lower the setpoint of supply water or supply air temperature based upon a proportionate change in temperature at the master sensor. The A350S has no relay output and must be used with S350 Stage Modules to operate the equipment. As with all System 350 products, the A350S is housed in a NEMA 1, high-impact plastic enclosure. The modular design provides easy, plug-together connections for quick installation and future expandability.
FeATureS
• Modular design enables stage, display, and transformer modules to be purchased and installed as necessary • Plug-together connectors and 35 mm DIN rail mountability eliminate wiring between modules and reduce installation costs
• Field-selectable reset direction works in direct or reverse reset applications
Temperature Sensors Temperature Sensors Temperature Sensors Temperature Sensors Temperature Sensors Enclosure
Immersion Well
Duct Temperature Element Holder Room Temperature Element Holder Cover
Sun Shield
DIN Rail Sections DIN Rail Sections
DIN Rail End Clamps
Cable for Remote Mounting of D350 Display Module Cable for Remote Mounting of D350 Display Module Cable for Remote Mounting of D350 Display Module
1. Included with A350SS-1C and A350SS-2C 2. WHA29A-600R can also be used to daisy chain S350 Stage Modules together. 466 Get fast delivery with same-day shipping on stocked items.
• Adjustable reset ratio adapts to a variety of weather zones and to the specific heat loss characteristics of most buildings
Descriptions
Reset ratio adjustable from 1:5 to 10:1 Reset ratio adjustable from 1:30 to 1:1 Fahrenheit Scale Celsius Scale
Fahrenheit Scale Celsius Scale
Dual Scale (°F and °C) Dual Scale (°F and °C)
120/240 VAC, 50/60 Hz input; rectified 24V Class 2 output PTC silicon sensor with PVC cable; cable length 9-3/4 ft (3m)
PTC silicon sensor with high temp. silicon cable; cable length 9-3/4 in. (0.25 m) PTC silicon sensor with high temp. silicon cable; cable length 9-3/4 ft (3 m) PTC silicon sensor with high temp. silicon cable; cable length 16-3/8 ft (5 m) PTC silicon sensor with high temp. silicon cable; cable length 49 ft (15 m) PVC Sensor Enclosure
For liquid sensing applications
Element holder with hardware for mounting in a duct Element holder with hardware for mounting in a room Cover for room temperature element holder For use with outside sensors in sunny locations 35 x 7.5 mm, 12 in./0.305 m long 35 x 7.5 mm, 36 in./0.914 m long Two end clamps 3 ft (0.9 m) 25 ft (7.6 m) 50 ft (15.2 m)