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Watts Climatic Control Heating and Cooling Manual

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If PE = No Conventional operation of the free
contact "Heating output" (See Chap 5.3)
If PE = Yes See below explanations on “PE t”
-------------
PE t
(Efficiency Point
temperature
setpoint)
15
Setting the desired PE outdoor temperature.
If PE = Yes
• If the outdoor temperature is lower than the
Efficiency Point temperature setpoint and if a
heating request occurs, then the free contact of
the “heating output” will be closed to control an
auxiliary heat generator.
• If the outdoor temperature is higher than the
Efficiency Point temperature setpoint, and if a
heating request occurs, then the free contact of
the “heating output” will remain opened, f
orbidding
to switch on a backup heat generator.
-7°C
-20°C to
+ 15.0°C
16
Temperature indication in °C or °F °C
°F
17
Time indication mode
24 hours or 12 hours
24H
12H Am/Pm
18
Side
-
track protection
YES (ac-
tive)
NO (inactive)
When YES is selected the pump and the auxiliary actuator are activated at midday 12 hrs, if they
haven’t been active for a period of 24 hours. (12h00: Pump ON 1min, 12h01: Open actuator 2min,
12:03: Close actuator 2min)
The following parameter “Pump” is only used when no RF thermostats are installed and if no inputs (In1 & In2)
are used for connecting box (C_b) and aquastat (Aqu) function.
_ _ _ PUMP
19
Pump delay time:
Time duration to switch off the pump
after the stop demand from the
wired thermostat or after complete
close of the 3 way mixing valve.
This function is also interesting to
avoid permanent ON/OFF cycle of
the pump when “PWM” thermostat is
installed.
030
For best use
the duration
should be =>
2xPWM cycle
of the thermo-
stat
001 to 060,
and above “- - -“
= infinite delay, the
pump will be ON
all the time
20
Manual mode (or test function) for valve drive respectively 2/3
-
way valve
By pressing the (+) key the valve drive opens. The display shows “OPEN“ and ▲.
By pressing the (–) key the valve drive closes. The display shows “CLOSE“ and ▼
By pressing the (◄) or (►) key current position of the valve drive is kept. Displays “STOP“
There is a actuator security anti-short delay: when switching from “OPEN“ to “CLOSE“
or “CLOSE“ to “OPEN“, the actuator will be stopped during 15s
Floor / screed preheating
program.
0 PrH
7 PrH
_ _ _ PrH
21
The program is started by selecting „7 dry“ and runs automatically.
For a period of 3 days the flow temperature is kept at 25 °C (days 7, 6, 5). For next 4 days the flow
temperature is maintained at its preset maximum value (days 4, 3, 2, 1).
The number of the days until the end of the heating program is displayed.
Floor / screed dehumidifi-
cation program
0 drY
Default value after
“ON”
=> 13 Days
7 to 60 days
22
The program is started by selecting the desired numbers of days and runs automatically.
Example: 13 days selected: (3days rise + 7days at Hi + 3days decrease)
For a period of 3 days the flow temperature will be increased up to the “Hi” value, then the tempera-
ture will be kept at the “Hi” value during 7 days. For the last 3 days the temperature will be decreased
up to the “Lo” value.
Example2: 7 days selected: (3days rise + 1day at Hi + 3days decrease)
The number of the days left until the end of the fllor dehumidification program is displayed.
… 23 …


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