PB Heat Peerless Combi 160, Руководство пользователя

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12.7 - Adjusting the
domestic hot water
temperature
The domestic hot water temperature
is adjusted by turning knob “11”
shown in fi gure 62. When the knob
is turned, the display, item “1” in
fi gure 62, shows a fl ashing and
the temperature being selected. The
range within which the domestic hot
water can be set is 104°F (40°C) to
140°F (60°C) or from 104°F (40°C)
to 158°F (70°C) when an indirect
storage tank is used.
12.8 - Heating
system temperature
adjustment
The boiler provides hot water to the
heating system at the temperature
set by adjusting knob “7” as shown in
fi gure 62. The room thermostat turns
the boiler’s circulator pump on in order
to satisfy the heat demand of the
rooms controlled by the thermostat.
To maximize the boilers’ performance,
temperature knob “7”, should be set
at a value that is just suffi cient to
maintain the desired temperature
of the rooms. As the weather gets
colder, progressively increase the
water temperature by adjusting knob
“7”. When the weather gets milder
turn the water temperature down. This
extremely simple method is suitable
for the following types of systems:
1. small systems with radiators where
the thermostat is installed in a room
whose temperature is characteristic
of all the other rooms;
2. large systems with radiators, where
each zone is controlled by its own
room thermostat. Where zone
valves are used the boiler pump is
shutdown only when all the room
thermostats are satisfi ed.
3. large systems with low temperature
radiant panels , where each zone
is controlled by its own room
thermostat. Where zone valves are
used the boiler pump is shutdown
only when all the room thermostats
are satisfi ed.
CAUTION!!! If the boiler is
installed in a low temperature system
follow the settings specifi ed in
section 5.10 or the heating system
may be damaged.
12.9 - Heating
system type
selection
The boiler is factory set for wall stat
control as per section 12.8.
The heating system type can be
changed by going to the “Installers’
Menu” in section 12.17 and changing
the parameter. One of the
three following heating modes can be
selected:
-CH = 00 “Wall stat control”: follow
section 12.8;
-CH = 01 “Outdoor reset control”:
follow section 12.10 (an outdoor
temperature sensor is required);
-CH = 02 “Outdoor reset control with
room compensation control”: follow
section 12.10 to 12.10.6 (an outdoor
temperature sensor is required):
12.10 - Outdoor
reset adjustment
While in the “Installers’ Menu”, set the
parameter to 01. In this mode
the heating supply water temperature,
calculated temperature in fi gures 63
and 64, will be adjusted automatically
based on the input from the outdoor
temperature sensor. The relationship
between the outdoor temperature
and the supply water temperature,
corresponds with the graphs shown in
fi gures 63 and 64. In order to change
the relationship between the supply
water temperature and the outdoor
temperature, all the parameters listed
in the sections below must be set.
12.10.1 - Outdoor reset
applications
Outdoor reset is a sophisticated
way to maximize comfort and boiler
effi ciency. It is suitable for the
following system types:
A - small systems, with radiators
where the thermostat is installed
in a room whose temperature is
characteristic of all the other rooms.
The room thermostat is used to turn
the boiler on and off.
B - Iarge systems, with radiators,
where each zone is controlled by its
own room thermostat. Where zone
valves are used the boiler pump is
shutdown only when all the room
thermostats are satisfi ed (see to an
appropriate electrical system).
C - small systems, with low tempera-
ture radiant panels where the
thermostat is installed in a room
whose temperature is characteristic
of all the other rooms. The room
thermostat is used to turn the boiler
on and off. In this type of system
it is necessary to consider that the
radiant panel systems sometimes
have long lag times. It may be
necessary to adapt the heating
system and use the “Reaction”
parameter in order to
compensate, see section 12.17.
D - Iarge systems with low
temperature radiant where each
zone is controlled by its own room
thermostat. Where zone valves are
used the boiler pump is shutdown
only when all the room thermostats
are satisfi ed.
CAUTION! If the boiler is
installed in a low temperature system,
follow the settings specifi ed in
section 5.10 or the heating system
may be damaged.
12 - USE