
Data Sheet TP75M Mains Powered Heating
Controller Programmable Room
Thermostats
Application & Features
Typical System
Connections
The TP75M is a 220/240V powered version of the
TP75 seven-day programmable thermostat.
A selectable 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.
●●
● Mains voltage powered with battery back-up in
●●
the event of mains power failures
●●
● Volt-free output contacts, rated 10 to 250Vac,
●●
50/60Hz, or dc 10mA to 2(1)Amp.
Direct Burner Control Zone control with motor open/motor close
Heating
Wallplate
terminals
Mains
COM
ENL123456
OFF
ON
SPARE
Remote
Sensor
●●
● Integral or remote temperature sensing
●●
●●
● Up to 6 programmable temperature changes
●●
per day, including a programmed "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
two port valve
Heating
Wallplate
terminals
Mains
COM
ENL123456
OFF
ON
SPARE
Remote
Sensor
EN L
220/240 V
NL
Boiler
TP75MA
Only
EN L
220/240 V
N
V
Zone Valve
TP75MA
Only
V
1

Data Sheet TP75M Heating Controller
Specifications
Feature
3 or 6 cycles per hour,
chrono-proportional control
Programmes
Integral temperature sensor Remote temperature sensor
TP75M TP75MA
Profiled - (up to 6 temperature changes per day)
All Day - ( 1st event temperature lasts until 6th event time)
Model Designations
Raise or lower temperature setting
User overrides Extend duration of existing temperature setting by 1, 2 or 3 hours
Select Profiled or All Day programme
Monday to Friday Event Saturday & Sunday
20°C at 06:30 1 20°C at 07:30
Factory pre-set programme, 15°C at 08:30 2 20°C at 09:30
all may be changed. 20°C at 11:30 3 20°C at 11:30
Note: An "OFF" event can also 15°C at 13:30 4 20°C at 13:30
be programmed 21°C at 16:30 5 21°C at 16:30
15°C at 22:30 6 15°C at 22:30
DIL Switch No. Factory Pre-set Installer Alternative
1 7 day programme 5/2 day programme
DIL switch options Control disabled enabled
at the time of installation
2
3 ON/Off control
4
Optimum Start Optimum Start Control
Chrono control enabled
enabled
3 control cycles 6 control cycles
per hour per hour
Voltage Rating of Relay 10-250 Vac, 50/60 Hz or 10-50 Vdc
Current Rating of Relay 10mA to 3 Amp (res), 1 Amp (ind)
Switching Action SPDT voltage free
Power Supply 220/240 Vac, 50/60 Hz
Battery Back-up Up to 15 days
Max. Ambient Temperature 45°C
Dimensions (mm) 135 wide x 88 high 32 deep
Fixing clearances,
Internal wiring &
DIL Switch Settings
Remote Control
Functions
External Connections
30 mm
minimum
Wall or plaster
box mounting
holes
Clearance for
screwdriver
access
Terminals
E N L
Knockouts for
bottom cable
entry
Outline of unit
Aperture for rear
cable entry
N & E
looping
terminals
TP75M
Heating
Mains
Wallplate
terminals
Danfoss Randall can accept no responsibility for possible errors in catalogues, brochures and other printed material, and reserves the right to
alter its products without notice. This also applies to products already on order provided that such alterations can be made without subsequent
changes being necessary in specifications already agreed.
ENL123456
220/240 V
COM
COM
OFF
SPARE
HTG OFF
ON
HTG ON
Internal wiring
ELECTRONICS
ENL123456
Live
In
Mains
Wallplate
terminals
ENL123456
220/240 V
TP75MA
COM
COM
Factory pre-set
DIL switch settings
5/2 day
OSC ON
CHRONO
Chrono 3
Heating
OFF
SPARE
HTG OFF
Remote
Sensor
ON
Remote
HTG ON
Sensor
7 day
OSC OFF
ON/OFF
Chrono 6
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. 306 Iss.7 03/99