Pcb Explanation; Functions And Control; Main Functions And Control Specification Of Indoor; Unit - Vaillant V 10-025 NHI Training Manual

9

PCB Explanation

9.1

Functions and Control

9.1.1 Main functions and control specification of
indoor unit
"Setting value" (express in parameter) in this
specification means is a parameter that is stored in
EEPROM. Refer to [EEPROM parameter table].

9.1.2 Temperature Adjusting function

The frequency kept when the frequency rises.
When the operation enters into the work mode, in order
to insure the full oil-returning, some frequency should
be kept for some time.
Indication time
Cooling & mois-
Heating
ture removing
60 seconds 60 seconds
DASH operation
When the operation starts or the operation mode
changes (except when the compressor is switched on
after being off), the compressor is on and the indicated
maximum frequency should be as follows:
Cooling
Moisture removing
Heating
There will be no DASH operation under trial operation,
emergency operation and silent operation modes.
Temperature adjusting of different levels
(DASH operation conditions under different modes)
Split Type Installation Manual
Indication
frequency
Frequency kept
58 Hz/88Hz
deviation to zero
deviation to level G
deviation to level F
Select the wind volume when it is set automatic
When the wind volume is automatic, it can be switched
between strong, medium and weak according to the
temperature adjusting levels. Wind volume under the
automatic wind volume mode.
Temperature adjusting levels
A B C D
Heating Strong Strong Strong Strong Strong Medium Weak Weak SLO
Cooling Strong Strong Strong Medium Medium Weak Weak Weak
Moisture
Strong Medium Medium Medium Weak Weak SLO
Removing
Wind volume limit
When the compressor is working and the max setting for
indoor fan motor is medium or weak, the upper limit of
indicated frequency is as follows:
Frequency control form for wind volume
Limited frequency
Medium wind volume
Weak wind volume
Limited frequency for
up/down health wind

9.1.3 Main functions

Warm boot
When the heat running starts or the frost removing ends
and the compressor starts again, in order to avoid cold
wind, warm boot wind volume control should be done.
Heat exchange temperature
• To control the indoor fan motor as shown in the
table above according to the heat exchange temperature.
• The fan motor stops when the heat exchange tem-
perature is below 28 ºC.
• The fan motor is working slightly weak when the
heat exchange temperature is above 28 ºC and below
35 ºC.
• The fan motor is working weak if the he heat
exchange temperature remains 35 ºC for less than 4
minutes.
PCB Explanation 9
E F G H
SLO
Limited
variables frequency
FQLIMMD 80Hz
FQLIMLO 52Hz
FUPHEAL 40Hz
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