1/8/2008 7 HD320
Outdoor sensor reference or heating requirement level*
– the outdoor digital sensor “tells” the
WarmFlo “brain” its desired (DT) value or decision making capability. This is for desired or
required supply temperatures greater than the “min. warm air” horizontal line setting. At each
internal calculation cycle a DT is determined by reading the outdoor temperature (OT) and then
finding the appropriate warm air point on the appropriate or selected diagonal line. See Figure 1
for the various diagonal lines associated with the A through G “temperature” selection knob.
Example
– if the temperature knob is set on Position C, at 20° outside the DT or the supply
delivery temperature is 100°. The WarmFlo controller now automatically adjusts and
maintains electric element power to keep the supply temperature at 100°. Likewise if it -
10° outside the DT or supply delivery temperature is 120°. The elements are re-adjusted to
provide a constant 120° temperature.
Where should I set the efficiency dial?
– As you can visualize from the curves above, the lower
the setting, the flatter the curve, the less electric resistance is added to the heat pump compressor
warm air. Therefore, the efficiency knob setting is based upon comfort and efficiency. The
lower the setting the higher the overall operating annual efficiency, the higher the setting the
warmer the air at the register.
Chip code/field programming
– your unit was ordered and supplied with a “coded” program
chip, one of the selections shown in each Chip Code Reference Table for your application (within
the various colored page sections). These tables show the various defaults associated with that
particular code. With WarmFlo II a number of field re-programming possibilities and options
exist using either PC software or WarmFlo analyzer, reference “WarmFlo Handheld
Analyzer/Laptop Software” section. Chip code is located on the WarmFlo II controller board
white label.
Note:
There are certain things such as SOT’s, MU time, etc. which are only field
programmable. If the item is not shown in the chip code table, that feature or item is
default set as disable.
Chip Code (WF II)
Code
Stg. Enable
MU Time
ODT Mode
OT Function
SOT-S
EMW
90°, 50°, 36°, 34°
60
EL to SB+
DT Cal.
90
HPDH
50°, 38°, 36°, 34°
90
HP
DT Cal.
90
HPDF
50°, 38°, 36°, 34°
30
EL to SB
DT Cal.
90
HPEL
50°, 38°, 36°, 34°
00
HP
DT Cal.
00
HPGO
40°, 33°, 32°, 30°
00
HP
DT Cal.
00
EBW
90°, 50°, 36°, 34°
00
EL to SB
DT Cal.
00
EMA
-
00
EL to SB+
Disable
90
EBA
-
00
EL to SB+
Disable
00
HPFU
50°, 38°, 36°, 34°
30
HP
DT Cal.
90
+ODT dial switch must be set on 0 = disable.
Also, except EBA, SB reset is factory enabled.
