HEVAC RTC4v Manuel utilisateur

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HEVACCONTROLS

RTC4vPROGRAMMABLE ROOM THERMOSTAT C/W TIME SWITCH

FEATURE:

2Stage heat /2 stage cool with 7 day time switch control

Large LCD display with backlight, continuous backlight option

Preset for quick install/operation as 2 stage heat pump controller Mon-fri 8:00-17:30

Simple menu driven programming

The running screen displays the set Point, Room temperature and current Time

Auto orManual heat / cool change over

Permanent user settings retention during power loss, no batteries are required,

Run times and temperature set points programmable for each day plus day omit

24v and or battery powered

Permanent ON override, Vacation mode &After hours Run UNTIL timer

Intelligent optimised morning start option

Optional Air filter change indicator selectable

Optional UV light change indicator selectable

APPLICATION:

The RTC4v room thermostat is ideal for the control of single or twin compressor air conditioning units in

commercial air conditioning applications. For easy installation and quick start up the thermostat comes

preset to control a typical 2 stage reverse cycle unit with a preset time schedule to operate Monday

to Friday from 8:00 to 17:30 with the heating (off) set point set to 21.5 degrees and cooling (off) set

point at 22.5. Note: the stage "turn off" temperature is the displayed operating set point. All trigger

times and temperatures for each day are easily adjustable via a user friendly menu.

Domestic application model RTC4c is available with typical “Wake, Leave, Return & Sleep type program.

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KEYBOARD, DISPLAYAND SWITCH DESCRIPTION

Typical running screen

Figure 4

SPECIFICATION:

Power Supply ……………………… Dual Power 24VAC (18-30VAC,50/60Hz)

orBatteryPowered

Terminal Load………………………… 1.0 A per terminal, 2.0A maximum total load

Set point Temperature Range…………. 41℉ to 95℉(5℃ to 35℃)

Operating Ambient……………………. 32℉to 122℉(0℃to 50℃)

Operating Humidity…………………... 90% non-condensing max

Shipping Temperature Range…………. 14℉to +140℉(-10℃to 60℃)

Dimensions……………………………. 5.9 inch×4.5 inch×1.2inch(150mm×115mm ×32mm)

Color……………………………………White

Front Panel 2 AA Batteries

Base

INSTALLATION

1.Pull the thermostat body off the thermostat base. Forcing or prying on the thermostat will cause

damage to the unit.

2. Place base over hole in wall and mark mounting hole locations onwallusing base as a template

3. Move base out of the way.Drill mounting holes. If you are using existing mounting holes and the

holes drilled are too large and do not allow you to tighten base snugly, use plastic screw anchors to

secure the base.

4. Fasten base snugly to wall using mounting holes shown in Figure 3 and two mounting screws.

Leveling is for appearance only and will not affect thermostat operation.

5. Connect wires to terminal block on base using appropriate wiring schematic (See Figure 5)

6. Carefully line the thermostat up with the base and snap into place.

Batteries are optional (to provide backup power) if your thermostat was wired to run on AC power when

installed. 2 “AA” alkaline batteries are included in the thermostat at the factory with a battery tag to

prevent power drainage.

Battery replacement

Install fresh batteries immediately when the Low Batt warning begins flashing. The warning flashes

about 60 days before batteries are depleted. Even if the warning does not appear, you should replace

batteries once a year, orbefore leaving home for more than 1 month

Toreplace batteries, set system to OFF,remove thermostat from wall and install the batteries in the rear

along the top of the thermostat. (See figure 4)

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-4-

WIRING DIAGRAM

FIGURE 5

WIRING GUIDE

ASPERDEFAULT“HP2”PROGRAM

C/S1

HEAT PUM

CONVENTIONA

C/S1

***WIRE PER THIS***

TO MATCH DEFAULT

HP2 PROGRAM

RC 24v Active (for cool) I

RH 24v Active (for heat) I

C/S1 Neutral I

G Fan O/P I

B Rev. Valve (for Heat mode) I

Y Compressor I

RC 24v Active (for cool)

RH 24v Active (for heat)

C/S1 Neutral

G Fan O/P

W Heat O/P

Y Cool O/P

HEAT PUMP UNITS (HP2 PROGRAM) HEAT/COOL APPLICATIONS (2H PROGRAM)

1 STAGE

RC 24v Active (for cool) I

RH 24v Active (for heat) I

C/S1 Neutral I

G Fan O/P I

B Rev. Valve (for Heat mode) I

Y Compressor 1 I

RC 24v Active (for cool)

RH 24v Active (for heat)

C/S1 Neutral

G Fan O/P

W Heat 1 O/P

W2 Heat 2 O/P

Y Cool 1 O/P

Y2 Cool 2 O/P

2 STAGE

Y2 Compressor 2 I

----------------------------------------------------------------------------------------------------------------------------------------------

FACTORY DEFAULT

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Screen lock

To prevent tampering, the screen can be partially or fully locked. Configuration menu item 24 explain the

way to partially or fully locked the screen

Special feature

Intelligent Recovery: See configuration menu item 6- Intelligent Recovery operation.

Compressor protection: See configuration menu item 10- Select compressor lockout delay

Heat Pump Temperature Lockout: See configuration menu item 21-Heat pump compressor lockout

temperature

Press MENU for displaying main menu button.

Press SET TIME button to enter to the

clock-setting mode. Press the day to set current

day of the week. Press △or▽to adjust the

minutes or hours. Press NEXT STEP to shift

between setting minutes and setting hours.

Press DONE to save & exit (or press CANCEL

to exit without changing the time).

Adjust program schedules

Press menu button to display main menu

buttons. Press SET SCHED to enter

Programming schedule mod

Set current day

of the week

Set current minutes

or hours

Press NEXT STEP to

shift from setting minuts

to setting hours

Press DONE to

confirm and exit Press CANCEL to

cancel current setting

and exit

Press SET SCHED

to set program

PROGRAMMING

This thermostat comes factory set with a typical commercial default operating

monday to friday program and with time and date set. (see page 10.)

To adjust these default settings if neccessary follow the procedure below.

To Set Current Time clock and Day of the week

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Both HEAT & COOL

temperature set

points & RETURN &LEAVE times

have to be set for each day.

This can be done for each day

individually or in a block of days by

selecting more than one day for

programming.

1.) Select HEATinthe SYSTEM

button window,

2.) Select the group of days that require

the same RETURN time & HEATset

point.

3.) Press the RETURN button and

the existing start time and setpoint

will appear, alter temp & time as

required. 4.) Press the LEAVE button

and adjust finish timeas required.

5.) In the SYSTEM selection window

select COOL then repeat steps 2-4.

6.) Press the DONE button to exit

programing.

Toviewthe schedule press the

VIEW SCHED button

And then select the day to be

viewed. Press the RETURN or LEAVE

buttons in either HEATor COOL mode

to see the program schedule for thatday.

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OPERATING YOUR THERMOSTAT

Press SYSTEM option

to your requirement

Press FAN option

to your requirement

Press DONE to save

and exit

Press CANCEL to

disregard current

setting and exit

During operation if the set point is changed this automatically puts the thermostat into a temporary

"RUN UNTIL" mode. The thermostat is locked into the heating or cooling mode it was in when the set

point was altered and will operate in only this mode (heat or cool) and cycle the output per the

temperature demand with this temporary set point until the "RUN UNTIL" time expires (which is

easily altered with the time adjust buttons. The screen will display the system is operating in this

temporary mode. To return to the program schedule, press the "RUN SCHED" button.

Choose the Fan Setting (Auto or On)

Fan set to “Auto” causes the fan to turn on only when heating or cooling is on (andthe thermostat is

running in the “RETURN” time period).The fan, heating & cooling remain off during the “LEAVE” time

period. This is the typical selection for domestic applications.

Fan set to “On” causes the fan to run continuously during the “RETURN” time period as required to meet

ventilation standards in commercial applications. The fan, heating & cooling remain off during the

“LEAVE” period.

Tochoose the System mode Setting (Auto, Cool, Off, Heat, Emer)

Press the SYSTEM button to select:

Auto: Auto Changeover is used in areas where both heating and cooling may be required on the same day

Cool: Thermostat controls only the cooling system

Off: thermostat outputs are held permanently off

Heat: Thermostat controls only the heating system

Emer: Emergency heat is available only when the thermostat is configured in HP1 or HP2 mode.

When SYSTEM button set to AUTO, the thermostat automatically selects heating or cooling depending

on the indoor temperature. Heat and cool turn on points operate with a factory set minimum gap of 2

degrees (configuration menu item 5) to stop the system jumping from one mode to the other. The auto

change over in operation requires the measured temperature to be at least 2 degrees closer to the other

mode turn on point for at least 5 minutes before mode change over can occur. .

TEMPORARY SETPOINT CHANGE OR & "RUN UNTIL"AFTER HOURS MODE

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Manual Operation for Non-programmable Thermostats

Press the SYSTEM button to select Heat or Cool and Use the △or▽buttons to adjust the temperature to

your desired setting.After selecting your desired settings you can also press the SYSTEM button to select

AUTO to allow the thermostat to automatically change between Heat and Cool ifAUTO changeover

option is set to 1. (See configuration menu item 5)

Manual Operation for programmable thermostats

This operation applies only when Program option (See configuration menu item 14) is set to

programmable.

Permanent Hold Override

Press HOLD to permanently adjust the

temperature. This will turn off the program

schedule.

Whatever temperature you set will be maintained

24 hours a day, until you manually change it, or

press RUN SCHED to cancel “Hold’and resume

the program schedule.

Vacation Hold Override

This feature can suspend the program schedule for

extended period of days.

Press HOLD for 5 seconds.

Press △or▽to set the temperature you want,

then press △or▽to set time of day you want to

schedule to resume when you return.

Whatever temperature you set will be maintained

24 hours a day for the number of days you select.

After these numbers of days have elapsed, the

previously programmed schedule will resume at

the time you set.

Press HOLD

Press RUN SCHED

to resume program

schedule

Adjust temperature

Press HOLD

for 5 seconds

Press RUN SCHED

to resume program

schedule

Press RUN SCHED

to resume program

schedule

Adjust temperature

Press to select number

of days

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If you return earlier than expected, press

RUN SCHED button to resume program.

Press △or▽to immediately adjust the

temperature. This will temporarily override the

temperature setting for the current time period.

The new temperature will be maintained until the

time you set. When the timer expires, the program

schedule will resume and set the temperature to

the level you’ve programmed for the current time

period.

To cancel the temporary setting at any time, press

RUN SCHED. The program schedule will

resume.

Inquiry for filter count back time

This operation is only available when filter replacement time is set. Configuration menu item 17 explains

the way for inquiry for the count back time.

Inquiry for UV lamp duration time

This operation is only available when UV lamp duration time is set. Configuration menu item 18 explains

the way for inquiry for the UV lamp duration time.

Screen cleaning

Press CLEAN DISPLAY to lock the screen

for cleaning. The screen will remain locked for 30

seconds so you can clean the screen without

changing any setting.

After 30 seconds, press DONE to resume normal

operation, or press CLEAN DISPLAY again if

you require more time for cleaning.

Note: Do not spray any liquid directly on the

thermostat. Spray liquids onto a cloth, then use the

damp cloth to clean the screen. Use water or

household glass cleaner. Avoid abrasive cleansers

Press RUN SCHED

to resume program

schedule

Adjust temperature

Press to set time

Press CLEAN DISPLAY

Screen lock timer

(count back 30 seconds)

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Factory Default Pre-program

The thermostat is pre-programmed with the energy saving settings shown in the table below for all days

of the week. If this program suits your needs and the thermostat clock is correct for your region button,

then the thermostat is ready for operation.The table below shows the factory set heating and cooling

schedule for all days of the week

Program HEAT RETURN

Time Temp HEAT LEAVE

Time COOL RETURN

Time Temp COOL LEAVE

Time

Mon 08:00 21.5 C

17:30

--- (OFF) 08:00 22.5 C

17:30 ---

Tue “ “ “ “ “ “ “ “

Wed “ “ “ “ “ “ “ “

Thu “ “ “ “ “ “ “ “

Fri “ “ “ “ “ “ “ “

Sat --- --- --- --- --- --- --- ---

Sun --- --- --- --- --- --- --- ---

Planning Your Program

The Heating and Cooling Program schedules below allow you to pencil in your own program times and

temperatures.

Keep the following guidelines in mind when planning your program

In Heating, lower temperatures will save energy

In Cooling, higher temperatures will save energy

If you plan on using Auto Changeover, set the heating temperature below the cooling set temperature

for more than the value of pre-set dead ban (See configuration menu item 5.

Worksheet for Re-programming 7 day program

Program HEAT RETURN

Time Temp HEAT LEAVE

Time COOL RETURN

Time Temp COOL LEAVE

Time

Mon

Tue

Wed

Thu

Fri

Sat

Sun

CUSTOMERASSISTANCE

After reading this guide, if you have any question about the operation of your thermostat, please contact

your installer, service provider or contact HEVAC CONTROLS.

HEVAC CONTROLS PTY. LTD. 7 / 54 HOWLEYS RD NOTTINGHILL VIC.3150 Ph. 03 95627888

www.hevac.com.au 22/02/16

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