Lennox COMFAIR II HD Manual De Instalación, Operación Y Mantenimiento página 83

At least 2s delay is required for indoor fan to switch from one speed to another.
f heat draft protection is activated, indoor fan should be controlled according to the indoor coil
emperature irrespective of the set fan speed, to avoid the hot air circulation into the
onditioning room. Refer to paragraph 16.1) below.
Modalità Dry - Dry Mode
Fan mode
Only High, Medium and Low speed selection is allowed. Water valve will be turned off. Each
peration mode has its own fan speeds setting.
Dry mode
During the first 12 min of the DRY mode run from:
a. Power up or
-
b. Mode change from heat, fan or auto heat
Dry mode must run under cool mode with Low fan speed for 12 min or until Tr ≤ Ts – 1.0°C.
After this, the dry mode may run under either Zone A, B, C or D as below:
a. if Tr - Ts ≥ 2°C , the operation is in Zone A
b.
if 1°C ≤ Ts – Tr ≤ 2°C , then the operation is in Zone C.
c.
if 0°C < Tr - Ts ≤ 1°C, then the operation is in Zone B.
d.
if Ts - Tr ≥ 3°C, then the operation is in Zone D.
e.
the other temperature ranges are dead bands for zone stability.
The operation sequence for various zones are as shown:
A
TURN (CHANG ZHOU) TECHNOLOGY CO., LTD. ) Zone A
E: WRM-WQW PRODUCT SPECIFICATION
sion: A.4
On
) Zone B
Off
Valve
On
On
Off
Off
Low fan
On
Off
C
30 sec
) Zone C
Valve
On
Off
Low fan
On
Off
30 sec
d) Zone D
Valve
On
"zona neutra"
D
"neutral zone"
-3 -2
Valve
Low fan
8 min 4 min
12 min
30 sec
6 min 6 min
30 sec
SATURN (CHANG ZHOU) TECHNOLOGY CO., LTD.
TITLE: WRM-WQW PRODUCT SPECIFICATION
"zona neutra"
C B
Revision: A.4
"neutral zone"
b) Zone B
Valve
-1
0
On
set
Off
SATURN (CHANG ZHOU) TECHNOLOGY CO., LTD.
Low fan
TITLE: WRM-WQW PRODUCT SPECIFICATION
Revision: A.4
On
B
b) Zone B
Off
Valve
Date: 17 MAY2013
On
c) Zone C
Off
Valve
Low fan
On
On
Off
Off Low fan
On
c) Zone C
Off
Valve
D
On
d) Zone D
Off
Valve
Low fan
On
On
Off
Off
Low fan
On
d) Zone D
Off
Valve
On
Note:
Heat draft is not applicable in dry mode.
Off
Low fan
On
"zona neutra"
A
"neutral zone"
1 2
8 min 4 min
PAGE 8
30 sec 30 sec
8 min 4 min
6 min 6 min
30 sec 30 sec
30 sec 30 sec
6 min 6 min
12 min
30 sec 30 sec
30 sec
12 min
+
83