Carrier 38APS025 - C.TYP=7 (Pct Cap) Required Configuration; C.TYP=7 (Pct Cap) Wiring

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Table 33 — C.TYP=7 (Pct Cap) Required Configuration
*Although return air and supply air thermistors are not required, they
can be configured. If they are not installed, the values for RAT.T and
SAT.T must be set to 2.
Fig. 85 — C.TYP=7 (Pct Cap) Wiring
CONFIGURATION MODE
SUBMODE ITEM DISPLAY ITEM DESCRIPTION COMMENT
OPT1
RAT.T X RAT Thermistor Type
Default: 0
Range: 0 to 2
Must be set for appropriate value:
0 = 5 k:
1 = 10 k:
2 = None*
SAT.T X SAT Thermistor Type
Default: 0
Range: 0 to 2
Must be set for appropriate value:
0 = 5 k:
1 = 10 k:
2 = None*
OPT2 C.TYP X Machine Control Type
Default: 4
Range: 1 to 9
Set Item to 7 (Pct Cap)
REMOTE ON/OFF
4-20 mA
SIGNAL
GENERATOR
38AP LVT
TERMINAL STRIP
–
+
SAT (OPTIONAL)
FS1
25
24
19
18
16
14
13
11
10
8
2
1
ALM
R
MAT/RAT (OPTIONAL)
20
LLSV-B (38APD)
LLSV-A2 (38APS)
or LLSV-B2 (065)
LLSV-A
or LLSV-B (065)
CXB-J6
(38APD070-130 ONLY)
FIELD-SUPPLIED
TRANSFORMER
(REQUIRED)
RED
7
6
5
PNK
ORN
LLSV-A2
LLSV-B2
24 VAC
SECONDARY
REQUESTED
CAPACITY
SIGNAL
(REQUIRED)
A38-7281
LEGEND
NOTES:
1. Field wiring must be in accordance with local codes.
2. LVT-1 and 2 are for the alarm relay. The maximum load allowed for the alarm relay
is 5 VA sealed, 10 VA at 24 VAC. Field power supply is not required.
3. LVT-24, 25, and 2 are for control of field-supplied liquid line solenoid valve (LLSV)
15 VA sealed, 30 VA inrush at 24 VAC. Field power supply is not required.
4. For 38APD070-130 units, an additional LLSV, 15 VA sealed, 30 VA inrush at 24
VAC can be connected to CXB. A field-supplied control transformer is required, not
to exceed 75 VA.
5. All discrete inputs are 24 VAC.
6. Installation of fan status switch (FS1) is recommended. If not used, a jumper must
be installed.
7. Energy management module (EMM) is required.
8. The contacts for Remote On-Off, Fan Status Switch and Demand Limit must be
rated for dry circuit applications capable of handling a 24 VAC load up to 50 mA.
ALM R — Alarm Relay
CXB — Compressor Expansion Board
FS1 — Fan Status Switch
LLSV-A — Liquid Line Solenoid, Circuit A, First Stage
LLSV-A2 — Liquid Line Solenoid, Circuit A, Second Stage
(38APS040,050, 38APD070-130 only)
LLSV-B — Liquid Line Solenoid, Circuit B, First Stage
(38APS065, 38APD only)
LLSV-B2 — Liquid Line Solenoid, Circuit B, Second Stage
(38APS065, 38APD070-130 only)
LVT — Low Voltage Terminal
MAT/RAT — Mixed Air Thermistor/Return Air Thermistor
SAT — Supply Air Thermistor
Factory Wiring
Field Wiring