-59-
When the high temperature release is received, the release control continues for 3
minutes at least even if release is performed on the way, and H-1 is performed for
20 minutes and the machine returns to normal operation. When the release signal
continues for more than 3 minutes, H-1 operation of outdoor fan control is
performed at the same time as releasing the release and the machine returns to
normal operation.
When the high temperature release is received during operation of H-1 for 20
minutes, operation of the previous time –1 of reset operation is performed for 20
minutes after release operation.
If the release signal is not received during reset operation for 20 minutes, reset
operation of +1 per 20 minutes is performed and the machine returns to normal
operation.
The high temperature release control is ignored during defrosting operation.
Release of H–
α
discontinued:-
When stopping operation
When changing
over operation
When performing heating operation, the following control is done based on
temperature detection of Tc sensor.
In [M] zone, release signal is
transmitted.
Outdoor fan is controlled in
accordance with the diagrams
below
The control point for A and C can
be chosen from the below table:
R e l e a s e O N
R e l e a s e O F F
O N
Release signal OFF
F o r 3 m i n u t e s
F o r 2 0 m i n u t e s
R e s e t o p e r a t i o n
O u t d o o r f a n
H
H - 1
H - 2
H - 3
L –
α
O u t d o o r f a n
L –
α
R e l e a s e O N
R e l e a s e O F F
O N
Release signal OFF
F o r 3 m i n u t e s
For 20 minutes
o r l e s s
Single release
Duplicate release
R e l e a s e O N
R e l e a s e O F F
Reset operation
O N
Release signal OFF
O u t d o o r f a n
H
H - 1
H - 2
H - 3
L –
α
F o r 2 0
m i n u t e s
F o r 2 0
m i n u t e s
F o r 2 0
m i n u t e s
H
H - 1
For 20 minutes
o r l e s s
F o r 2 0
m i n u t e s
N o r m a l
operation
L–
α
=0
(fan stop)
7
High temperature
release control
NO.
ITEM
OUTLINE OF SPECIFICATIONS
REMARKS
Dip Switch 3
Setting 4
ON ON ON OFF
OFF
ON
OFF
OFF
A/C (°C)
54/52
58/56
60/58
-
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Tel: 01823 665660
www.heronhill.co.uk
Fax: 01823 665807
