jablotron TP-89 Quick Start Manual

The TP-89 digital bus thermostat

A

The TP-89 is an indoor thermostat which can be used to set and
measure the temperature in a room. The thermostat is designed to
work exclusively in combination with AC-8007 / AC-8014 / AC-814
receivers. Temperature adjustment can be performed simply by turning
the setting knob. This knob can be locked to avoid accidental setting.
The thermostat does not use any programmed scheduling. The
following features are also available:

• Anti-freeze protection – any drop in temperature under the

(configurable) AL Lo value is detected and signalled to the
receiver, causing the receiver’s FRE output terminal to be activated.

• Floor temperature detection – the thermostat is equipped with an

input terminal for the connection of a temperature sensor such as
the TS-80. This is especially suitable for under-floor heating control
– by placing the sensor directly into the floor heating regulation can
be performed with higher precision. As a result, using the TP-89
and the TS-80 in combination allows for a comfortable floor
temperature with no additional risk of damaging the floor.

AL Lo -9°C to +20°C 3°C FRE (freeze)

output to ON

AL Hi +30° to +70°C 60°C Not applicable

FL ON/OFF OFF

Floor sensor

ON/OFF

Lower floor-

FL Lo +6°C to +40°C* 22°C

temperature

threshold

Upper floor-

FL Hi +6°C to 40°C* 27°C

temperature

threshold

FL t

Corr

Current temperature of the floor (displayed after

pressing the knob)

±1°C

0 Correction

* t Lo to t Hi and FL Lo to FL Hi must be valid ranges: t Lo must not

be greater than t Hi and FL Lo must not be greater than FL Hi.

Adjustment ranges as depicted on a coordinate axis:

Button

FL Lo

t Lo

L Lo

Temperature accuracy adjustment: The thermostat allows you to

configure the hysteresis – the accuracy to which the temperature is

Temperature regulation range

209

FL Hi
t Hi

regulated. The setting is done via the SPAN item in the adjustment
menu (proceed the same way as with the threshold parameters
mentioned above). Turning the knob lets you select one of the
following accuracy ranges: ±0.1˚C, ±0.2˚C or ±0.5˚C (the factory
default setting is ±0.2˚C).

Tab

Installation and enrollment

The TP-89 should be mounted in a dry indoor location. Choose a
mounting location about 1.5 meters above the floor in an area with
good air circulation. Avoid places with draughts, dead air spots and
radiant heat from the sun or appliances.

1. Release the upper cover by pressing the plastic tab on the bottom
side of the housing

2. Mount the back part on to the desired location.

3. Connect the receiver’s digital bus jumper to the BUS terminals.
The polarity is irrelevant.

4. Should a floor sensor be used, wire it to the SEN terminals.

5. Close the thermostat.

6. Enroll the thermostat to the receiver by pressing and holding the
knob for 5 seconds. The receiver must be in enrollment mode (see
the AC-8007/8014/814 manual).

Configuring the fixed parameters

The thermostat works with the following temperature thresholds:

t Lo (economic), t Hi (comfort), AL Lo (fault/freeze), FL Lo (floor low
temperature) and FL Hi (floor high temperature). Each of the
parameters is configurable within a corresponding temperature range –
see the table below.

You can enter the adjustment menu by keeping the knob pressed for
10 seconds. Scrolling the menu is done by turning the knob. The
display will show temperature parameter names – see the table below.
The currently displayed parameter can be adjusted by pressing the
knob briefly, turning the knob until the desired temperature is
displayed, and confirming the setting by re-pressing the knob (this will
also cause a return to the menu so that you can configure other
parameters immediately). The adjustment menu is escaped from by
pressing the knob while OK is displayed or automatically after 30
seconds. The parameter ranges are restricted according to the table.

Parameter Adjustment range Factory Description

SPAN 0.1°C;0.2°C;0.5°C 0.2°C Hysteresis for

t Lo +6°C to +40°C* 6°C Economic

t Hi +6°C to +40°C* 40°C Comfortable

switching

temperature

temperature

Example: If the accuracy is adjusted to ±0.5˚C and the temperature is

set to 24˚C, the thermostat switches the heating on when the
temperature drops below 23.5˚C and it switches it off if the
temperature goes above 24.5˚C. In reality the temperature scatter can
be slightly higher because of the temperature persistence of the room.

Warning: too high an accuracy can cause the heating to turn on

and off too frequently.
Temperature measurement correction: Possible temperature

measurement offsets can be corrected via the Corr item in the
adjustment menu. The range of adjustable corrections is ±1°C.

Manual operation

• When not being handled, the thermostat shows the current
temperature in the room.

• By turning the knob the desired temperature can be set from t Lo
to t Hi (during setting, a hand symbol is shown on the display). If
the temperature cannot be set, see “Locking the thermostat”.

Setting the t Lo and t Hi limits allows the installer to prevent the
regulated temperature from being set to undesirably high or low
values by manual operation.

Example: If t Lo = +15°C and t Hi = +22°C then the regulation

temperature can only be set within the range of +15 to +22°C
(unless the adjustment menu is entered).

• If you stop turning the knob the current temperature in the room will
be displayed again (3 seconds after the last movement of the
knob).

• If the current temperature is lower than the desired
temperature minus the hysteresis, the thermostat will switch the

heating on (a symbol of wavy lines will appear on the display).

• If the current temperature is higher than the desired
temperature plus the hysteresis, the thermostat will switch the

heating off (the symbol of wavy lines will disappear).

Floor heat detection

If enabled by setting FL On, floor temperature detection is performed
using a sensor located in the floor. The FL Lo and FL Hi parameters
allow you to set temperature thresholds for under-floor heating
regulation:

• If the current floor temperature is lower than FL Lo, the

thermostat will switch the heating on. This way a comfortable floor­temperature is maintained even if no switch-on request is
generated due to the room temperature.

• If the current floor temperature is higher than FL Hi, the

thermostat will switch the heating off. This prevents the floor from
being damaged by too high a temperature.

TP-89 digital bus thermostat 1 / 2 MKL51701

Note: Floor heat detection is of higher priority than room
temperature detection. This means that the current temperature in the
room is taken into account only when the current floor-temperature is
between FL Lo and FL Hi.

You can display the current floor temperature by entering the menu,
scrolling to the FL t parameter and pressing the knob (a re-press will
cause a return to the menu).

Displaying the set temperature

As mentioned above, normally the thermostat displays the current
temperature in the room. If you want to display the set temperature,
press the knob briefly (no matter if the thermostat is locked). The set
temperature will then flash on the display for 3 seconds.

Locked
Heating on

Parameter
setting

Locking the thermostat

• To prevent the accidental changing of the set temperature the

thermostat can be locked by pressing and holding the knob (the
key symbol will appear on the display for about 2 seconds).

• To unlock the thermostat simply press and hold the turning knob

(the key symbol will disappear on the display for about 2 seconds).

Temperature

Heating fault detection

If the temperature in the room drops below AL Lo the thermostat
sends signals to the receiver. This is responded to by the receiver by
switching on the FRE (freeze) output for 10 seconds.

This feature is especially suitable for detecting heating faults.

RESET

The RESET function allows you to reset the device to the factory
defaults listed in the table. You can perform a RESET by selecting Res
in the adjustment menu and pressing and holding the knob for 5
seconds.

Specification

Power supply: via the receiver digital bus
Temperature measurement: +6 to +40 ˚C
Temperature accuracy: adjustable: ± 0.1, ± 0.2 or ± 0.5 ˚C
Freeze alarm (panic transmission) temperature threshold: <AL Lo
configurable from –9°C to +20°C
Operational range: up to 200 m (twisted cable)
Floor sensor type TS-80
Operational temperature range: -10°C to + 70°C (low humidity)
Dimensions: 65 x 88 x 20 mm

Complies with:
EMC EN 50130-4, EN 55022

Jablotron Ltd. hereby declares that the TP-89 is in
compliance with the essential requirements and other
relevant provisions of Directive 2004/108/EC. The original of
the conformity assessment can be found on the web site

www.jablotron.com, Technical Support section.

Note: Although this product does not contain any harmful
materials we suggest you return the product to the dealer or
directly to the manufacturer after use.

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TP-89 digital bus thermostat 2 / 2 MKL51701