Data Sheet |
TP75 Heating Controller Programmable |
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Room Thermostats |
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Application & Features The TP75 is a true seven-day programmable thermostat incorporating many useful features.
An optional Optimum Start function will enable a required comfort temperature to be achieved by a programmed time, without wasting fuel because the heating plant started earlier than necessary. The chrono-proportional control logic ensures optimum comfort with minimal fuel consumption.
The basic model incorporates a temperature sensor within the casing, but a remote sensor version is also available. Both can be converted to operate as an electronic thermostat, controlling at a constant, user selected, temperature. The Holiday Mode uses this temperature for a selected number of days, before automatically returning to programmable thermostat mode.
Versions are available for use with a thirdparty telephone line switching device so that frost mode or holiday mode can be cancelled whilst away from home.
●Battery powered, programme unaffected by mains power failures
●Volt-free output contacts, rated 10 to 250Vac, 50/60Hz, or dc 10mA to 2(1)Amp.
●Integral or remote temperature sensing
●Up to 6 programmable temperature changes per day, including a programmable "OFF" function
●Selectable 7 day or 5/2 day programme
●Selectable time or temperature display
●Temperature range, 5°C to 30°C, in increments of 0.5°C.
●Selectable Chrono-proportional control or On/Off control
●Optional Optimum Start
●Frost protection function
●Thermostat function for constant temperature setting
●Holiday function, up to 99 days at a constant, selectable temperature
●Extend override, maintains existing set temperature for a further 1, 2 or 3 hours
●Selectable All Day programme, 1st event temperature lasts until 6th event becomes active
●Remote reset of Frost or Holiday functions possible
Typical System
Connections
Direct Burner Control
Wallplate teminals |
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Live |
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Heating |
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Input |
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On |
Off |
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A B C |
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2 |
3 |
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5 |
6 |
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3 amp |
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N |
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E |
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fuse |
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NL N E Mains
Zone control with motor open/ motor close two port valve
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Live |
Heating |
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Wallplate teminals |
Input |
On |
Off |
A B C 1 2 3 4 5 6 |
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EARTHS NOT SHOWN. |
3 amp |
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ENSURE EARTH |
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CONTINUITY |
fuse |
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THROUGHOUT |
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N |
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N E |
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Mains |
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Data Sheet |
TP75 Heating Controller |
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Specifications |
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Model Designations |
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Feature |
Integral |
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Remote |
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Remote |
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Remote temp |
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temperature |
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temperature |
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teleswitch |
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sensor & |
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sensor |
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sensor |
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reset |
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teleswitch reset |
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3* or 6 cycles per hour, |
TP75 |
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TP75A |
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TP75B |
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TP75AB |
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chrono-proportional control |
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12* or 6 cycles per hour, |
TP75C |
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TP75AC |
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TP75BC |
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TP75ABC |
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chrono-proportional control |
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Programmes |
Profiled - (up to 6 temperature changes per day) |
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All Day - ( 1st event temperature lasts until 6th event time) |
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Raise or lower temperature setting |
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User overrides |
Extend duration of existing temperature setting by 1, 2 or 3 hours |
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Select Profiled or All Day programme |
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Monday to Friday |
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Event |
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Saturday & Sunday |
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20°C at 06:30 |
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1 |
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20°C at 07:30 |
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Factory pre-set programme, |
15°C at 08:30 |
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2 |
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20°C at 09:30 |
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all may be changed |
20°C at 11:30 |
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3 |
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20°C at 11:30 |
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Note: An "OFF" event can |
15°C at 13:30 |
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4 |
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20°C at 13:30 |
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also be programmed |
21°C at 16:30 |
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5 |
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21°C at 16:30 |
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15°C at 22:30 |
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6 |
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15°C at 22:30 |
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DIL Switch No. |
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Factory Pre-set |
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Installer Alternative |
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1 |
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7 day programme |
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5/2 day programme |
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2 |
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Optimum Start |
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Optimum Start |
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DIL switch options |
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Control Disabled |
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Control Enabled |
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at the time of installation |
3 |
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On/Off control |
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Chrono control |
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enabled |
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enabled |
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4 |
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3 or 12 control cycles |
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6 control cycles |
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per hour (see above *) |
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per hour |
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Voltage Rating |
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10-250Vac, 50/60Hz or 10-250Vdc |
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Contact Current Rating |
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10mA to 2 Amp (res), 1 Amp (ind) |
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Switching Action |
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SPDT voltage free |
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Main Batteries |
2 x AA alkaline dry cells (Duracell preferred) to be renewed every |
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24 months |
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Memory Retention |
Sufficient to remove and replace batteries within one minute |
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Max. Ambient Temperature |
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45°C |
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Dimensions mm |
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135 wide x 88 high x 32 deep |
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Fixing clearances, internal wiring & DIL switch settings
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Internal wiring |
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Factory pre-set DIL |
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30 |
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Terminals |
Outline of unit |
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switch settings |
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minimum |
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A B C |
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Wall or plaster |
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ELECTRONICS |
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5/2 day |
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7 day |
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E |
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box mounting |
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looping |
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OSC ON |
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OSC OFF |
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holes |
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terminals |
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CHRONO |
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ON/OFF |
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A |
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Chrono 6 |
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Chrono 3 or 12 |
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Clearance |
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Knockouts for |
Aperture for rear |
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Live |
On |
Off |
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for |
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Input |
Heating |
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bottom cable |
cable entry |
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screwdriver |
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entry |
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access |
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Remote Control |
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A |
B |
C |
1 |
2 |
3 |
4 |
5 |
6 |
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A |
B |
C |
1 |
2 |
3 |
4 |
5 |
6 |
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A |
B |
C |
1 |
2 |
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4 |
5 |
6 |
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Functions |
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External Connections |
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* NOTE: Remote start-up |
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Remote |
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* TP75B |
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Remote |
* TP75AB |
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Remote |
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TP75A |
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start-up |
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Remote |
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start-up |
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connections vary with model. |
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Sensor |
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TP75AC |
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circuit |
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TP75BC |
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Sensor |
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circuit |
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TP75ABC |
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Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material, and reserves the right to |
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alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent |
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changes being necessary in specifications already agreed. |
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Danfoss Randall Limited
Ampthill Road
Bedford, MK42 9ER
Tel: (01234) 364621 Fax: (01234) 219705
Email: danfossrandall@danfoss.com
Website: www.danfoss-randall.co.uk
2 |
Part No. 320 Iss.7. 03/99 |