10
Fig. 8 —
Typical Fan Discharge Connections for Multiple Fan Units
Table 3 —
Recommended Line Sizes (in.)
LEGEND
Fig. 9 —
External Trap Condensate Drain
Step 8 —
Complete Electrical Connections
GENERAL
Verify that nameplate electrical requirements match available
power supply. Voltage at condenser must be within the minimum
and maximum shown in Tables 4 and 5 and phases must be bal
-
anced within 2%. Contact local power company for line voltage
corrections. Never operate a motor where a phase imbalance in
supply voltage is greater than 2%.
Use the following formula to determine the percentage of voltage
imbalance:
UNBALANCED 3-PHASE SUPPLY VOLTAGE
Use the following formula to determine the percent of voltage
imbalance.
Percent Voltage Imbalance
Example: Supply voltage is 460-3-60.
50XC
UNIT SIZE
CIRCUIT
LENGTH OF RUN (ft)
0 to 15
16 to 25
26 to 50
51 to 75
76 to 100
DIS
LIQ
DIS
LIQ
DIS
LIQ
DIS
LIQ
DIS
LIQ
06
1
5
/
8
1
/
2
7
/
8
1
/
2
7
/
8
1
/
2
7
/
8
5
/
8
7
/
8
5
/
8
08
1
5
/
8
1
/
2
7
/
8
1
/
2
7
/
8
1
/
2
7
/
8
5
/
8
7
/
8
5
/
8
12
1
7
/
8
5
/
8
7
/
8
5
/
8
1
1
/
8
5
/
8
1
1
/
8
5
/
8
1
1
/
8
5
/
8
14
1
7
/
8
5
/
8
7
/
8
5
/
8
1
1
/
8
5
/
8
1
1
/
8
5
/
8
1
1
/
8
5
/
8
16
1
1
1
/
8
5
/
8
1
1
/
8
5
/
8
1
1
/
8
5
/
8
1
3
/
8
7
/
8
1
3
/
8
7
/
8
24
1
1
1
/
8
5
/
8
1
1
/
8
5
/
8
1
3
/
8
7
/
8
1
3
/
8
7
/
8
1
3
/
8
7
/
8
NOTE: A = min. straight duct length
A
HG
— Hot Gas (Refrigerant Discharge)
LIQ
— Liquid
NOTE: Trap should be deep enough to offset maximum unit static
difference. A 4-in. trap is recommended.
TO UNIT
DRAIN
PLUG
MINIMUM PITCH
1/4 IN. PER
FT OF LINE
OPEN
VENT
SEE
NOTE
= 100 x max voltage deviation from average voltage
average voltage
