36
6. The first schedule is now complete. If a second schedule is
needed, such as for weekends or holidays, scroll down and
repeat the entire procedure for period 2 (
PER.2
). If addi-
tional schedules are needed, repeat the process for as many
as are needed. Eight schedules are provided.
SERVICE TEST
General
The units are equipped with a Service Test feature, which is in-
tended to allow a service person to force the unit into different
modes of operation. To use this feature, enter the Service Test
category on the local display and place the unit into the test
mode by changing
Service Test
TEST
from OFF to ON. The
display will prompt for the password before allowing any
change. The default password is 1111. Once the unit enters the
Service Test mode, the unit will shut down all current modes.
TEST
The
TEST
command turns the unit off (hard stop) and allows
the unit to be put in a manual control mode.
STOP
The
STOP
command completely disables the unit (all outputs turn
off immediately). Once in this mode, nothing can override the unit
to turn it on. The controller will ignore all inputs and commands.
S.STP
Setting Soft Stop to YES turns the unit off in an orderly way,
honoring any time guards currently in effect.
FAN.F
By turning the FAN FORCE on, the supply fan is turned on and
will operate as it normally would, controlling duct static pres-
sure on VAV applications or just energizing the fan on CV ap-
plications. To remove the force, press ENTER and then press
the UP and DOWN arrows simultaneously.
The remaining categories:
INDP, FANS, AC.T.C, HMZR,
COOL,
and
HEAT
are sub-menus with separate items and
functions. See Table 29.
Service Test Mode Logic
Operation in the Service Test mode is sub-menu specific except
for the
INDP
sub-menu. Leaving the sub-menu while a test is be-
ing performed and attempting to start a different test in the new
sub-menu will cause the previous test to terminate. When this hap-
pens, the new request will be delayed for 5 seconds. For example,
if compressors were turned on under the
COOL
sub-menu, any at-
tempt to turn on heating stages within the
HEAT
sub-menu would
immediately turn off the compressors and 5 seconds later the con-
troller would honor the requested heat stages.
However, it is important to note that the user can leave a Ser-
vice Test mode to view any of the local display menus (
Run
Status
,
Temperatures
,
Pressures
,
Setpoints
,
Inputs
,
Outputs
,
Configuration
,
Time Clock
,
Operating Modes
, and
Alarms
)
and the control will remain in the Service Test mode.
Independent Outputs
The
INDP
sub-menu items can be turned on and off regardless
of the other category states. For example, the humidifier relay
or remote alarm/auxiliary relay can be forced on in the
INDP
sub-menu and will remain on if compressor stages were re-
quested in the
COOL
sub-menu.
Fans
Upon entering the
FANS
sub-menu, the user will be able to en-
act either a manual or automatic style of test operation. The
first item in the sub-menu, Fan Test Mode Automatic (
Service
Test
FANS
F.MOD
)
, allows the fan and the configured
static pressure or building pressure control to begin as in the
application run mode. During this automatic mode, it is possi-
ble to manually control condenser fans 1 to 4.
If Fan Test Mode Automatic (
Service Test
FANS
F.MOD
)
, is
set to NO, then the user will have individual control over duct stat-
ic pressure (VFD speed), building pressure and condenser fan con-
trol. Additionally, the controller will protect the system from de-
veloping too much static pressure. If the static pressure during
manual control rises above 3 in. wg or if the Static Pressure Set
Point (
Setpoints
SPSP
) is greater than 2.5 in. wg and static pres-
sure is 0.5 in. wg higher than
SPSP
, then all options in the FANS
menu will be cleared back to their default OFF states.
The power exhaust dampers can be energized individually or to-
gether and their damper positions can be forced to any position.
Actuators
In the
AC.T.C
sub-menu, it will be possible to control and cali-
brate actuators. Calibration is a mode in which the actuator
moves from 0% to the point at which the actuator stalls, and it
will then use this angular travel range as its “control angle”. It
will also be possible to view the “control angle” adopted by the
actuator after a calibration.
Within this sub-menu, the user may calibrate and control econ-
omizer actuators 1 and 2, the building pressure actuators 1
and 2, the hydronic heating coil actuator, and the humidifier
steam valve control actuator.
NOTE: Once a calibration has been started, the user cannot exit
test mode or select any other test mode operation until the calibra-
tion is complete.
Содержание Weathermaster 48P2030-100
Страница 130: ...130 Fig 19 Typical Power Schematic Sizes 040 075 Shown ...
Страница 131: ...131 Fig 20 Main Base Board Input Output Connections ...
Страница 132: ...132 Fig 21 RXB EXB CEM SCB Input Output Connections ...
Страница 133: ...133 Fig 22 Typical Gas Heat Unit Control Wiring 48P030 100 Units Shown ...
Страница 134: ...134 Fig 23 Typical Electric Heat Wiring 50P030 100 Units Shown ...
Страница 135: ...135 Fig 24 Typical Power Wiring 115 V ...
Страница 136: ...136 Fig 25 Typical Gas Heat Section Size 030 050 Units Shown ...
Страница 138: ...138 Fig 27 Component Arrangement Size 030 035 Units ...
Страница 139: ...139 Fig 28 Component Arrangement Size 040 075 Units ...
Страница 140: ...140 Fig 29 Component Arrangement Size 090 100 Units ...
