Drayton PTS1 Manual


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Side 1/1
PTSI pipe/frost thermostat
Operating instructions
The Drayton PTSI strap on pipe thermostat is designed for use in domestic
and commercial heating applications, as a high or low limit.
It is typically used in conjunction with the Drayton RTS3 Air Frost
Thermostat, to provide protection for boilers and exposed pipework that may
be susceptible to frost damage.
When the PTSI is being used as a conventional pipe thermostat, site the unit
in a convenient position and strap it to the pipework to be sensed, using the
fixing wire provided. Ensure that
there is good contact between
the sensing bulb of the PTSI and
the pipe.
If the PTSI is being used in
conjunction with an air frost
thermostat, to provide boiler
protection, it is recommended
that the PTSI is fixed onto the
return pipework within 0.6m of
the boiler (see figure 1).
Technical data
Installation
Warning: Disconnect mains power before attempting any electrical work on
the system or PTSI. Any electrical work should be carried out by a competent
person, to conform to the current I.E. . regulations.
To gain access to the electrical connections, grasp the setting knob and
pull forward to reveal the cover securing screw. Loosen the screw and remove
the cover.
Cable entry is via the conduit adaptor/gland seal, (see figure 2).
Connect the wires to the terminals in accordance with your system
requirements, (see figure 3).
Electrical connections
NB: THIS PRODUCT MUST BE EARTHED.
Setting range
Max ambient temp
Min ambient temp
Switching differential
Sensitivity
Switch type
Switch rating
Conduit entry
Knob locking device
Sensing element
Enclosure protection rating
20 t 90°C°C o
120°C
-35°C
8 K
1 K/Min.
SPD (volt free)T
15 (2.5 230 50HZ)A V AC
Suppli wit adaptor, ed h threaded
M20 x 15 for 20 conduitmm mm
Suppli (loose)ed
Liqui filledd
IP40
Figure 1
Figure 4
Figure 3
Figure 2
Boiler
Flow
Return
PTSI
0.6m
Stripped wires with sleeve over earth wire
Compressible olive
Gland housing
Cable entry gland
Gland housing assembly
Terminal details Common
Call for
cooling
(satisfied)
Call for heat
(demand)
For boiler frost protection using PTSI in conjunction with a standard frost
thermostat see figure 4 below.
To live wire (usually
brown) on the Htg
Zone Valve
or
the Heating On wire
(usually white) on 3
port Mid Position
Valve
RTS3
(air frost
thermostat)
PTSI:
SET at
20°C TO 25°C
2 4 E I
LL
NN
3
1 2
4
2
1
4
Switched spur to heating
system, fused at 3A
Once the wiring is complete, refit and secure the cover and conduit
adaptor/gland seal. If you wish to lock the settings knob on a particular
temperature, use the locking “FIX” device which is supplied. This is achieved
by setting the unit to the desired temperature, pulling off the setting knob
and placing the FIX device onto the PTSI, with FIX showing in the top right
hand corner. Replace setting knob.
When the PTSI is used for boiler frost protection in association with the
RTS3 air frost thermostat, we recommend that the temperature setting knob
is locked between 20°C and 25°C, depending on requirements.
Always check system wiring for compatibility
No user maintenance should be attempted.
Maintenance
No replacement parts are available for this low cost thermostat. In the unlikely
event of failure, the complete unit should be replaced.
Spare parts
Conforms to the essential requirements of the following directives:
/ Electromagnetic compatibility
Electrical equipment designed for use within certain voltage limits
continuously seek to improve products and reserve
the right to make changes without notice.
982 307 430 Issue
Technical
Email
www.draytoncontrols.co.uk


Produkt Specifikationer

Mærke: Drayton
Kategori: Termostat
Model: PTS1

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