Introduction – Timeguard TPT88 User Manual
Page 2

1
Introduction
The TPT88 is a combined temperature and time controller for
electric underfl oor heating. It is rated at 16A (3.68kW). The
unit controls to a fully adjustable comfort temperature during
programmed ON times and to a fully adjustable economy
temperature during OFF times. It does this by using the signal
from an underfl oor probe (included). Both the economy and
comfort temperatures can be set to a minimum of 7°C to give
frost protection.
The large LCD display can be back lit if required at the press
of a button. The display reverts to normal 15 seconds after the
button is fi rst pressed.
Probe
failure
indicator
Push to
illuminate
display
Normal
operating
(timed)
mode
Continuously
OFF indicator
Output to
underfl oor
heating ON
Programme
overview
display
Periods of
comfort
temperature
Continuous
control of
comfort
temperature
Day
indicator
(day 1 =
Monday)
Programme
number
24 hour time
display (also
indicated
copy in
Programming
mode)
Temperature display - shows under-fl oor temperature
(except when Comfort and Economy temperatures are being set)
Fig. 1
TPT88_Instructs_Art_TG_1.5.indd 1
TPT88_Instructs_Art_TG_1.5.indd 1
19/9/06 09:53:47
19/9/06 09:53:47