Products for air handling units ...

Sontay is a market leading manufacturer and distributor of building measurement and control peripherals. The company provides a fast, professional and personal service, supporting businesses with reliable, durable and innovative products. This is backed

by a dedicated Customer Services Team to assist with product advice and technical support. Please visit www.sontay.com

Sontay Limited · Four Elms Road · Edenbridge · Kent · TN8 6AB

UK Rate +44 (0) 1732 861200 · International +44 (0) 1732 861225EXPERTS IN FIELD CONTROLS©2012 Sontay Limited. All rights reserved. E & OEInformation is subject to change without notice.

AHUs are used to supply and circulate air around a building, or to extract stale air.

Air Handling Units

Air Handling Units

In essence, an AHU comprises a large insulated metal box that contains fans,

heating and/or cooling elements, filters, sound attenuators and dampers.

In most cases, the AHU is connected to air distribution ductwork. Supply air passing

through the AHU is filtered and is either heated or cooled, depending on specified

duty and the ambient weather conditions. For heating or cooling, AHUs may be

connected to central plant such as boilers or chillers, receiving hot or chilled water

for heat exchange with the incoming air.

Alternatively, heating may be provided by electric heating elements built into the air

handler. A controlled proportion of stale air may be recirculated to avoid having to

condition all supplied air.

PA-DPS Air DP Switches

AV Air Velocity Sensors

RH Relative Humidity Sensors

ST-FRE Frost Thermostats

GS-CO2 CO2 sensors

RE Electric Heater Controllers

TTTemperature sensors

GS-AQ Air Quality Sensors

SD Smoke Detectors

FC-ERVFan Speed Controllers

OC Occupancy Detectors

LL Light Level Sensors

PM Current Switches

VA Damper Actuators

VA-FFailsafe Damper Actuators

Electric Heater

D

O

EI

J

G

HC

D

F

C

K

A

L

MN

G

B

AHUs are used to supply and circulate air around a building, or to extract stale air.

Air Handling Units

Sontay Part Code Application Function Catalogue

A VA Damper actuator

B VA-F Failsafe damper actuator

C RH-622 Duct mounting RH&T sensor

D PA-DPS Air DP switch fan proving

E PA-DPS Dirty filter indication

F AV-622 Air Velocity Sensor

G FC-ERV Fan Speed Controller

H RE Electric heater controller

K PM-CS Current switch

LLL Light Level Sensor

OC PIR Occupancy Detector

MRH-1000 Space mounting RH&T sensor

TT-1000 Temperature space sensor

N GS-CO2-1001 Wall mounting CO2 sensor

O ST-FRE Control Safeguards

CO2CO2CO22

1 0 56

. . . experts in f ield controls

Products for air handling units ...

Sontay is a market leading manufacturer and distributor of building measurement and control peripherals. The company provides a fast, professional and personal service, supporting businesses with reliable, durable and innovative products. This is backed

by a dedicated Customer Services Team to assist with product advice and technical support. Please visit www.sontay.com

Sontay Limited · Four Elms Road · Edenbridge · Kent · TN8 6AB

UK Rate +44 (0) 1732 861200 · International +44 (0) 1732 861225EXPERTS IN FIELD CONTROLS©2012 Sontay Limited. All rights reserved. E & OEInformation is subject to change without notice.

AHUs are used to supply and circulate air around a building, or to extract stale air.

Air Handling Units

Air Handling Units

In essence, an AHU comprises a large insulated metal box that contains fans,

heating and/or cooling elements, filters, sound attenuators and dampers.

In most cases, the AHU is connected to air distribution ductwork. Supply air passing

through the AHU is filtered and is either heated or cooled, depending on specified

duty and the ambient weather conditions. For heating or cooling, AHUs may be

connected to central plant such as boilers or chillers, receiving hot or chilled water

for heat exchange with the incoming air.

Alternatively, heating may be provided by electric heating elements built into the air

handler. A controlled proportion of stale air may be recirculated to avoid having to

condition all supplied air.

PA-DPS Air DP Switches

AV Air Velocity Sensors

RH Relative Humidity Sensors

ST-FRE Frost Thermostats

GS-CO2 CO2 sensors

RE Electric Heater Controllers

TTTemperature sensors

GS-AQ Air Quality Sensors

SD Smoke Detectors

FC-ERVFan Speed Controllers

OC Occupancy Detectors

LL Light Level Sensors

PM Current Switches

VA Damper Actuators

VA-FFailsafe Damper Actuators