W.Tech RAA Series Bedienungsanleitung PDF herunterladen (Seite 5)

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RAA... Series Electronic Room Thermostats

A single packaged electronic thermostat that

delivers precise control, accuracy without a

fancy price tag, the RAA... Series delivers. Ideal

for schools, public buildings, storage or main-

tenance rooms requiring on/off control output,

the RAA10C is the basic electronic thermostat

that delivers a clean, modern look in a tamper-

proof housing. Designed for light industrial

buildings and for use in conjunction with zone

valves, thermal valves, gas or oil burners, and

pumps, the RAA20U delivers heating or cool-

ing only capabilities for maintaining room

temperatures with on/off control outputs.

RCU... Series Electronic Room Controllers

Featuring the same unique, low-profile design,

the RCU... Electronic Room Controllers deliver

even more features with integral micro-

processor-based technology for extremely

accurate control. Excellent for compact VAV or

universal applications that require proportional

control capabilities with 0 to 10 Vdc output for

heating and cooling, the RCU50U provides

automatic heat/cool changeover with remote

air temperature sensor inputs and operation

mode changeover inputs. Available with three

operating modes: normal, energy saving

and freeze protection, the RCU50.2U provides

manual heat/cool changeover.

Designed for both cooling and heating univer-

sal applications, including compact VAV appli-

cations, the RCU61U features a proportional

control algorithm with 0 to 10 Vdc cooling and

3-point floating heating outputs. This model

features external setpoint shift and minimum

air volume limitation cooling functionality.

Operating modes include: normal, energy

Universal

Room Control

Applications

saving and freeze protection for added

energy efficiencies. The RCU15U provides

two independent on/off outputs for separate

heating and cooling systems. For added

accuracy in sensing overall room air

temperature, a remote temperature sensor

input is available for air sensing at the air

return, as well as at the controller. For 4-pipe

applications, the RLA162.5U delivers two

modulating 0 to 10 Vdc outputs.

RDU... Series Modulating Electronic

Room Controllers

Featuring all the advantages of digital

technology, the RDU… Modulating Room

Controllers are loaded with functionality

for universal heating or cooling applications

that require three-point output control, three

operating modes: normal, energy saving and

freeze protection, and other in-demand

features such as operation mode change-

over, heat/cool changeover and return air

temperature input. Designed for universal

or VAV applications that require 0 to 10 Vdc

output control, the RDU50U delivers a easy-

to-read LCD and the capability for automatic

heat/cool changeover with a minimum air

volume limitation for the cooling function with

the touch of a button. The RDU50.2U features

a manual heat/cool changeover control on the

thermostat for easy adjustment by the user.

With 11 adjustable parameters for extremely

customized temperature control, the RDU20U

provides a three-point floating output for

heating and/or cooling applications with

automatic changeover using a sensor. The

controller has an adjustable run time to adapt

to valve and damper actuator operation.

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