Communication - York DPC-1 Technical Information

vated. If the set point is still not reached, and after a certain
period of time, the third stage W is activated (in HEAT only).
When the real temperature is close to the set point in 0.1° C,
W is deactivated and Y2 is deactivated at the set point tem-
perature, and when the set point temperature is surpassed by
0.1° C, Y1 is deactivated.
Operating with temperature probe S-4 is a special case. The
temperature is received by communication with the machine.
In this case, the temperature is in steps of 0.5° C and, there-
fore, control is different. When the difference between the room
temperature and the set point is greater than or equal to the
set point temperature, the first stage is activated. The same
as in the previous case, if after a while the set point is not
reached, stages Y2 and W are activated successively (in
HEAT). Once the temperature reaches the set point, the stages
go off.

Communication

The DPC-1 thermostat operates by communication only.
By communication it is possible to monitor the status of the
thermostat, while being able to program same. In other words,
all parameters that are changeable by means of keys can be
modified by means of communication, except for the tempo-
rary parameters and the number of days in unoccupied mode.
There are also 6 time schedule profiles that can be programmed
by means of communication only, and these go from 7 to 12.
If not programmed or used, these profiles are not displayed
on the profile programming menu when accessed through the
keyboard.
Installation instructions
It is recommended that the installation be carried out by a
qualified contractor.
Location
To assure adequate operation, this thermostat should be in-
stalled on an indoor wall, in a frequently occupied area of the
building. Furthermore, it should be at at least 46 cms. from
any outdoor wall, and at approximately 1.5 m. above floor
level, in an area with free air flow and at an average tempera-
ture. The following locations should be avoided:
- Behind doors or in corners with no free air flow.
- Spots where direct sunlight or heat generated by other ap-
pliances may alter the control operation.
- On an outdoor wall.
- Next to or aligned with air conditioning discharge grids, stair-
wells or doors leading outdoors.
- Spots where its operation can be affected by gas or water
pipes, or hot air chimneys in adjacent areas or any other
area without environmental control behind the thermostat.
- Spots where its operation can be affected by the supply air
of any adjacent unit.
- Near sources of electric interference, such as arch relay
contacts.
Basic elements
This thermostat comprises three basic parts:
- Hinged front cover.
- Front panel. The operating and control buttons are found in
16
this element. It is fastened to the base by means of a plas-
tic tab.
- Thermostat base. This is the box that allows fastening the
thermostat to the wall, and contains the printed circuit and
the electric connecting strips.
AUTO
AUTO
4
0h 2 4
ELECTRIC
CONNECTING
STRIP
BASE
Fastening the thermostat to the wall
To fasten the thermostat to the fall, first open the front panel
and uncover the base of the thermostat. Proceed as shown in
the following illustration:
1- Press the plastic tab at the base of the thermostat, as
indicated by arrow A.
2- While pressing A, raise the front panel as indicated by
arrow B.
FRONT PANEL
A
BASE OF THERMOSTAT
°C
6 8 10 12 14 16 18 20 22 24
ALKALINE BATTERIES
FRONT COVER
FRONT PANEL
FRONT COVER
B