Step 5 — Install Accessories - Carrier 38APS025-065 Installation Instructions Manual

MOCP VALUE
Wire Size
100 A or less
Greater than
100 A and Less than
or Equal to 200 A
Greater than 200
LEGEND
AWG — American Wire Gage
kcmil — Thousand Circular Mills
MOCP — Maximum Overcurrent Protection
SCCR — Short Circuit Current Rating
Step 5 — Install Accessories
LOW-AMBIENT OPERATION — If operating temperatures
below those found in Table 13 are expected, Motormaster
fan motor control is recommended.
Table 13 — 38AP Unit Low Ambient Limitations
Single Circuit
MINIMUM LOW
38APS
AMBIENT*†
UNIT SIZE
(Standard Unit)
025-065 45 F (7.2 C)
Dual Circuit
MINIMUM LOW
38APD
AMBIENT*†
UNIT SIZE
(Standard Unit)
025-040 32 F (0 C)
–
050-060 25 F ( 3.9 C)
070-130
32 F (0 C)
* Temperatures calculated with the minimum number of fans operating per
circuit.
† Minimum outdoor-air operating temperature is based on 32 C (90 F) satu-
rated condensing temperature and 100% capacity.
Table 12 — Unit Incoming Power Options
Standard Terminal
Block Option
Max Min
Wire Size Wire Size
2/0 #14 AWG
2/0 #14 AWG
600 kcmil #2 600 kcmil
®
MINIMUM LOW AMBIENT
MOTORMASTER ® CONTROL
(Factory-Installed Option)
– –
20 F ( 28.9 C)
MINIMUM LOW AMBIENT
MOTORMASTER CONTROL
(Factory-Installed Option)
– –
20 F ( 28.9 C)
– –
20 F ( 28.9 C)
– –
20 F( 28.9 C)
UNIT INCOMING POWER OPTION
High SCCR Terminal Block Option
Max Min High SCCR
Wire Size Fuse Type
2/0 #6 AWG J, RK1, or RK5
2/0 #6 AWG J or RK1
3/0 J or RK1
NOTES:
1. Terminal block high SCCR option units must use approved
fuses to meet high SCCR rating.
2. High SCCR disconnect option units can use either approved
fuse or circuit breaker for incoming power protection.
3. Time delay fuse type required.
MISCELLANEOUS ACCESSORIES — Energy manage-
ment module, Navigator™ display, remote enhanced display,
Touch Pilot™ display, BACnet* translator control, LON (local
V
operating network) translator control, and long line accessory
kit are available for special applications.
*Sponsored by ASHRAE (American Society of Heating,
Refrigerating and Air Conditioning Engineers).
37
Standard and High SCCR
Disconnect Option
Min
Max Wire Size
Wire Size
1/0 #14 AWG
350 kcmil #6 AWG
500 kcmil (1)
3/0
500 kcmil (2)