Engineered Comfort Fan Coil Controller EZstat Especificaciones descargar pdf (Pagina 7)

6-25-07

FAN COIL UNIT CONTROLS

Analog Control Thermostat and Controller

LCD Analog Thermostat

MODEL: CTE-5201W36

The CTE-5201W36 single output with limits and PI function

thermostat is designed to be used with the CEE-5201 Fan Coil

Unit controller. The thermostat comes with the following factory

default settings:

Set Point (Default): 70°F (21.1ºC) F/C Mode: Degrees F

MAX: 100% MIN: 20%

PROP: 4ºF (2.2ºC) UNOCC Mode: OFF

INT: 30 Minutes

Operation and Adjustment

To change any one of these values, except the F/C Mode, first

push the button to display the value to be changed. Use the Up /

Down buttons to change the value. Then hold down the

corresponding button for approximately 10 seconds until the display

begins to flash. The new value has now been written into memory.

To change to degrees C mode simply press and hold the F/C

button down for 10 seconds until the display begins to flash. To

change back to degrees F repeat the procedure.

Set Point (Normal)

The set point range is 60 – 85°F (15.6 – 29.4°C). To change the

set point, push the SET POINT button to display the current value.

Use the Up / Down buttons to change the value. The display will

time out and revert back to displaying the room temperature and

the thermostat will control to the new set point.

Set Point (Default)

If power is lost, when the unit is powered back up, the set point will

revert to the default value of 70°F (21.1 C). This default value can

be changed to any value in the set point range. This default set

point is also used in the dead band unoccupied mode.

MAX

This is the maximum value that the output can attain. It is

adjustable up to 100% (10 volts) and down to the MIN setting.

MIN

This is the min. value that the output can attain. It is adjustable

down to 0% (0 volts) and up to whatever the MAX is set for.

F/C Mode

The F/C button toggles the display between °F and °C. Room

temperature, set point, proportional band, dead band, and offset

will be displayed in the desired units.

UNOCC

Momentarily pressing this button will put the unit into the

unoccupied mode. It will stay in this mode until either the Set Point

or Up / Down buttons are pushed. There are two unoccupied

modes, OFF or DEADBAND.

OFF UNOCC Mode

The output voltage is forced to 0 volts (0%). A safety override will

bring the output up to 2 volts placing the unit in heating if the room

temperature falls below 50°F (10ºC). The output will return to 0

volts when the room temperature reaches 55°F (12.8ºC).

DEADBAND UNOCC Mode

In this mode the set point is set to 70°F (21.1ºC), the integral

action is disabled, and a dead band of +/- 10°F (5.5ºC) is set

around the set point. As long as the room temperature is within

the dead band the fan will run at MIN conditions.

PROP

The proportional band is the temperature band around the set

point over which the output will vary from MIN to MAX due to the

proportional action alone. The proportional band is adjustable from

2 – 6°F (1.1 – 3.3°C).

INT

As long as there is a difference between room temperature and set

point, the integral action will cause the output to integrate up or

down. The integral time is the time it takes the integral action to

repeat the effect of the proportional action. The integral time is

adjustable from 15 to 30 minutes. Setting the integral time to 0 will

disable the integral action.

Temperature Offset

By pressing both MIN and INT together it is possible to offset the

internal temperature sensor by +/- 2°F (-16.7 – -18.9°C). After

using the Up / Down buttons to change the offset both the MIN and

INT buttons must be held down together for 10 seconds until the

display begins to flash in order to write the new offset into memory

Thermostat Specifications:

Supply Voltage: 14 -19 VDC

Set Point Range: 60 – 85°F (15.6 – 29.4°C)

(Power On Default: 70°F (21.1°C)

Temperature Sensor Type: Thermistor

Accuracy: +/- 0.36ºF (0.2°C)

Display Degrees F or C: Selectable (Factory Setting: Degrees F)

Direct Acting Output: 0 – 10 VDC

MIN / MAX Limits: Adjustable 0 – 100%

(Factory Settings: MIN=20, MAX=100)

Proportional Band: 2 – 6°F (1.1 – 3.3°C) (Factory Setting: 4°F)

Integration Time: 15 – 60 Minutes (0=OFF)

(Factory Setting: 30)

Unoccupied Setpoint Modes: OFF or Deadband

(Factory Setting: OFF)

OFF Mode: Output Voltage = 0.0 Volts (Safety Override:

Output Cycles 0.0 Volts to 2.0 Volts. To

Maintain 50°F to 55°F (10 to 12.8ºC)

Deadband Mode: Integral Action Disabled & Set Point.

Set to Default +/- 10°F (5.5ºC) Deadband.

Deadband Output Midway between Max &

Min.

Temperature Offset: Adjustable +/-2°F (1.1°C)

(Press MIN & INT together)

Operating Ambient: 34 – 125°F (1.1 – 51.6°C)

Shipping Ambient: -40 – 140°F (-40 – 60°C)

Humidity: 0 – 95% Non Condensing

Case Material: White ABS.

UL Frame Class 94HB.

RJ-11 Female Connector.

PIN1 NC PIN2 COM PIN3 SUPPLY

PIN4 OUT PIN5 COM PIN6 NC

ACCESSORIES

HMO-1161W:

4" x 4" wallplate, White

HPO-0044:

Replacement allen screws

HSO-5013-50:

50' plenum cable w/conn.

HSO-5013-03:

3' plenum cable w/conn.

3 1/8" (79)

(127)

SETPOINTROOM TEMP

VIEW WITH COVER OPENED

SET

POINT

SET

POINT

DOWN

BUTTON

UP BUTTON

SET POINT

BUTTON

MAX F/C PROG

MIN UNOCC INT

Figure 1: Model CTE-5201W36 Analog Thermostat

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