Reznor ZQYRA Unit Installation Manual - Manual (Page 15)

Form I-ZQYRA P/N 260414R5, Page 15
Supply Wiring
Connections
FIGURE 15A illustrates supply wiring connections with or without Option BA6 discon-
nect switch.
DISCONNECT SWITCH
GND
OPTIONAL FUSIBLE
#6 BK
#6 Y
#6 R
208 or 230/3/60
DISCONNECT SWITCH
60A LOCKABLE ON/OFF
Option BA6
A
B
C
Distribution
Blocks in
the Electrical
Compartment
Field installed wiring (If there is no Option BA
disconnect switch, connect field wires at A, B,
and C in the electrical compartment.)
460/3/60
FIGURE 15A - Supply
Wiring Connections -
Option AK20 and AK7
7.2 Supply Wiring
Depending on option selection, the unit is wired for either 208-230/3ph/60Hz (Option
AK20) or 460/3ph/60Hz (Option AK7).
FIGURE 15B illustrates the field wiring change required when using 230V supply. If a
unit is ordered with Option AK20 (208-230/60), it is factory-wired for 208V operation.
When connecting to a 230V supply, a field wiring change is required.
a) In the electrical compartment, locate terminal blocks L5 and L6.
b) Disconnect the red wire from Terminal L5.
c) Connect the red wire to Terminal L6.
(O)
(R)
(BK) A
C
14 Gauge Red Wire
14 Gauge Black Wire
}
TRANSFORMER
TO 75VA
TERMINAL BLOCKS
(in the electrical compartment)
L5
L6
A
DISTRIBUTION BLOCKS
(2 of 3 in the electrical compartment)
Wiring Connections for Option AK20 (208-230V):
-- For units ordered with AK20 (208-230V), the factory connects the 14 gauge red wire to Terminal L5.
-- Using 230V supply, locate Terminal L5. Disconnect the 14 gauge red wire from Terminal L5.
Connect the 14 gauge red wire to Terminal L6.
-- Using 208V supply, no change required.
= Distribution block to transformer factory wiring for units ordered with Option AK20.
= When using 230V supply, connect the 14 gauge red wire to Terminal L6.
Key:
FIGURE 15B - Wire
Connection Change
Required when using
230V Supply
Supply Voltage
Supply Fan
Motor
Exhaust Fan
Motor
Supply Wiring and Connection
(See FIGURES 15A and 15B.)
Option AK20
(208-230/3ph/60Hz)
Direct drive
ECM (3ph)
Direct drive
ECM (3ph)
Shipped as 208V; field convertible to 230V. See instructions
above (FIGURE 15B) and on the wiring diagram.
Option AK7 (460/3ph/60Hz) Direct drive
ECM (3ph)
Direct drive
ECM (3ph)
Standard 3ph/60Hz
Model ZQYRA
ECM
Supply
Fan
ECM
Exhaust
Fan
Compressor
Energy
Wheel
Control
Transformer
Supplemental
Electric Heat
(Standard)
Standard Model Z
(without Optional
Electric PreHeat)
Optional Electric
PreHeat
Model ZQYRA
unit with Optional
Electric PreHeat
Voltage Size FLA FLA MCC LRA RLA FLA VA FLA kW FLA FLA MCA MOP Opt kW FLA FLA MCA MOP
208-230/3/60
(Option AK20)
8 3.0 5.2 18.2 88.0 11.7 0.7 150.0 0.7 5 11. 21.3 24.2 35
PH1A 5.0 11.5 32.8 38.6 45
PH2A 10.0 23.1 44.3 53.0 70
12 3.0 9.7 25.1 110.0 16.1 0.6 150.0 0.7 10 23.1 37.1 45.3 60
PH1A 5.0 11.5 48.6 56.8 70
PH2A 10.0 23.1 60.1 68.3 80
460/3/60
(Option AK7)
8 1.7 2.6 9.6 44.0 6.2 0.35 150.0 0.3 5 5.8 11.1 12.7 15
PH1A 5.0 5.8 16.9 19.9 20
PH2A 10.0 11.5 22.7 27.1 35
12 1.7 4.6 12.1 52.0 7.8 0.35 150.0 0.3 10 11.5 18.5 22.5 30
PH1A 5.0 5.8 24.3 37.2 40
PH2A 10.0 11.5 30.0 34.1 40
NOTE: For 208-230/3/60 V, Control Transformer FLA is calculated using the worst case (208V).
NOTE: For 208-230/3/60 V, Electric Heat FLA is calculated using the worst case.
MCA and MOP
WARNING
To prevent injury or death due to electrocution or contact with moving parts, lock
disconnect switch open. See Hazard Levels, page 2.