38
Table 36 — Service Test Modes and Submodes Directory
THIRD PARTY CONTROL
Third party controls may interface with the unit
Comfort
Link™ controls through the connections described
below. See other sections of these instructions for more
information on the related unit control configurations.
Thermostat —
The thermostat inputs are provided on the
field connection terminal board (TB2). The Thermostat
Control Type configuration,
Configuration
→
UNIT
→
T.CTL,
selects the unit response to these inputs.
Y1 = first stage cooling
Y2 = second stage cooling
W1 = first stage heating
W2 = second stage heating
G = indoor fan
Humidistat —
For units with the factory Humidi-MiZer™
option, the humidistat input is provided on the field connection
terminal board (TB2). The Space Humidity Switch configura-
tion,
Configuration
→
UNIT
→
RH.SW
, identifies the normally
open or normally closed status of this input at high humidity.
Humidistat 1 = 24 VAC signal input
Humidistat 2 = 24 VAC source for dry contact
Humidity Sensor —
For units with the factory Humidi-
MiZer option and the economizer option with the ECB (econo-
mizer control board), the humidity sensor input is provided on
the field connection terminal board (TB2). The sensor can be
used instead of a humidistat. The RH Sensor on OAQ Input
configuration,
Configuration
→
UNIT
→
RH.S=
YES
, identi-
fies the sensor use. Default conversion to 0 to 100% relative
humidity can be changed in the configurations.
4 = 4-20 mA + signal input
3 = 4-20 mA – common
Remote Occupancy —
The remote occupancy input is
provided on the field connection terminal board (TB2). The
Remote Occupancy Switch configuration,
Configuration
→
UNIT
→
RM.SW,
identifies the normally open or normally
closed status of this input when unoccupied.
5 = 24 VAC signal input
6 = 24 VAC source for dry contact
Fire Shutdown —
The fire shutdown input is provided
for unit shutdown in response to a fire alarm or smoke detector.
The Fire Shutdown Switch configuration,
Configuration
→
UNIT
→
FS.SW,
identifies the normally open or normally
closed status of this input when there is no fire alarm.
For 48/50 units without Humidi-MiZer system, input at field
connection terminal board (TB2)
Fire Shutdown 1 = 24 VAC source
for dry contact
Fire Shutdown 2 = 24 VAC signal input
For 50 series units with Humidi-MiZer system, input at wire
harness plug 19 (PL 19)
PL 19-3 = 24 VAC source
for dry contact
PL 19-5 = 24 VAC signal input for fire shutdown
For 48 series units with Humidi-MiZer system, input at wire
harness plug 19 (PL 19)
PL 19-3 = 24 VAC source
for dry contact
PL 19-5 = 24 VAC signal
for Fire Shutdown
PL 19-4 = 24 VAC power for indoor fan contactor control
circuit
NOTE: For 48 series units with Humidi-MiZer system, if the
indoor fan must be shut down without any delay upon Fire
Shutdown input, then the factory jumper between PL19-3 and
PL19-4 must be replaced with a normally closed contact when
there is no alarm (open with alarm).
Alarm Output —
The alarm output is provided on the
field connection terminal board (TB2) to indicate a current
alarm status. The output will be 24VAC if a current alarm
exists.
C = 24 VAC common
X = 24 VAC signal output
Outdoor Enthalpy —
For units with the economizer
option or accessory and the ECB control board, the outdoor
enthalpy input is provided on the field connection terminal
board (TB2). The Enthalpy Switch configuration,
Configura-
tion
→
ECON
→
EN.SW,
identifies the normally open or
normally closed status of this input when the outdoor enthalpy
is low.
6 = 24 VAC source for dry contact
7 = 24 VAC signal input
DISPLAY MENU/
SUB-MENU/NAME
EXPANDED
NAME
VALUES
UNITS
DEFAULT
CCN TABLE/
SUB-TABLE
CCN
NAME
SERVICE TEST
MAINTENANCE DISPLAY
TEST
Field Service Test Mode
On/Off
Off
(TEST = display only)
INDP
Test Independent Outputs
TESTINDP
ECON
Economizer Position Test
0 to 100
%
0
S_ECONO
E.CAL
Calibrate Economizer
On/Off
Off
S_ECOCAL
PE.1
Power Exhaust 1 Test
On/Off
Off
S_PE_1
PE.2
Power Exhaust 2 Test
On/Off
Off
S_PE_2
ALRM
Alarm Relay Test
On/Off
Off
S_ALMOUT
CCH
Crankcase Heat Test
On/Off
Off
S_CCH
FANS
Test Fans
TESTFANS
IDF
Indoor Fan Test
On/Off
Off
S_IDF
OFC.1
Outdoor Fan 1 Test
On/Off
Off
S_OFC_1
OFC.2
Outdoor Fan 2 Test
On/Off
Off
S_OFC_2
OFC.3
Outdoor Fan 3 Test
On/Off
Off
S_OFC_3
COOL
Test Cooling
TESTCOOL
CMP.A
Cool A Test
On/Off
Off
S_COMP_A
CMP.B
Cool B Test
On/Off
Off
S_COMP_B
CMP.C
Cool C Test
On/Off
Off
S_COMP_C
OF.OV
Outdoor Fan Override
On/Off
Off
S_OFC_OV
HMZR
Test Humidimizer
TESTHMZR
RH1.A
Reheat1 A Test
On/Off
Off
S_RH1_A
RH1.B
Reheat1 B Test
On/Off
Off
S_RH1_B
RH1.C
Reheat1 C Test
On/Off
Off
S_RH1_C
RH2.A
Reheat2 A Test
On/Off
Off
S2_RH2_A
RH2.B
Reheat2 B Test
On/Off
Off
S2_RH2_B
RH2.C
Reheat2 C Test
On/Off
Off
S2_RH2_C
CRC
Cool->Reheat1 Valve Test
On/Off
Off
S_CRC
RHV.A
Reheat2 Valve A Test
On/Off
Off
S_RH2_A
RHV.B
Reheat2 Valve B Test
On/Off
Off
S_RH2_B
HEAT
Test Heating
TESTHEAT
HT.1
Heat Stage 1 Test
On/Off
Off
S_HEAT_1
HT.2
Heat Stage 2 Test
On/Off
Off
S_HEAT_2
Содержание 48PG24
Страница 68: ...68 Fig 14 Low Voltage Control Schematic 48PG20 28 Units without Humidi MiZer System a48 7627...
Страница 69: ...69 Fig 15 Low Voltage Control Schematic 48PG20 28 Units with Humidi MiZer System a48 8227...
Страница 70: ...70 Fig 16 Low Voltage Control Schematic 50PG20 28 Units without Humidi MiZer System a48 7778...
Страница 71: ...71 Fig 17 Low Voltage Control Schematic 50PG20 28 Units with Humidi MiZer System a50 8101...
Страница 72: ...72 Fig 18 Power Schematic Units without Humidi MiZer System a48 7628...
Страница 73: ...73 Fig 19 Power Schematic Units with Humidi MiZer System a48 8228...
Страница 74: ...74 Fig 20 Component Arrangement Units without Humidi MiZer System a48 8229...
Страница 75: ...75 Fig 21 Component Arrangement Units with Humidi MiZer System a48 8230...
Страница 105: ......
