User manual
Chapter 4: Programming your SEC-HD Phason
28
Stage 2 idle range is the temperature above which
the stage 2 fan operates at Stage 2 idle speed
.
Stage 2 set point is the temperature above which
the stage 2 fan speed increases toward its maximum.
Stage 2 differential is the temperature at which the
stage 2 fan reaches full speed.
Stage 3 set point is the temperature above which
the stage 3 fan is on.
Stage 4 set point is the temperature above which
the stage 4 fan is on.
Stage 5 set point is the temperature below which
the stage 5 heater is on.
High temperature alarm is the temperature equal
to or above which the SEC-HD signals a high
temperature alarm.
Low temperature alarm is the temperature equal to
or below which the SEC-HD signals a low temperature
alarm.
Stage 1 configuration in the example and factory
defaults, stage 1 is configured as
CL 1
.
Stage 2 configuration in the example and factory
defaults, stage 2 is configured as
CL 1
.
Stage 3 configuration in the example and factory
defaults, stage 3 is configured as
COOL
.
Stage 4 configuration in the example and factory
defaults, stage 4 is configured as
COOL
.
Stage 5 configuration in the example and factory
defaults, stage 5 is configured as
HEAT
.
High temperature enable in the example and
factory defaults, the high temperature alarm is enabled.
Low temperature enable in the example and
factory defaults, the low temperature alarm is enabled.
Parameter
Program A
setting
1
2
3
4
5
6
7
8
9
10
11
12
Group set point (°F)
Stage 1 idle speed (%)
Stage 1 idle range (°F)
Stage 1 set point (°F)
Stage 1 differential (°F)
Stage 2 idle speed (%)
Stage 2 idle range (°F)
Stage 2 set point (°F)
Stage 2 differential (°F)
Stage 3 set point (°F)
Stage 4 set point (°F)
Stage 5 set point (°F)
85.0
20
80.0
85.0
86.5
20
87.0
87.0
88.5
89.0
91.0
84.0
13 and 14 are not used in the example.
15
16
High temperature alarm (°F)
Low temperature alarm (°F)
95.0
80.0
17 and 18 are not relevant in the example.
19
20
21
22
23
Variable 1 configuration
Variable 2 configuration
Stage 3 configuration
Stage 4 configuration
Stage 5 configuration
CL 1
CL 1
COOL
COOL
HEAT
24 to 29 are not relevant in the example.
30
31
High temperature enable
Low temperature enable
YES
YES
7
8
9
10
11
12
15
16
19
20
21
22
23
30
31