430648-JIM-D-1010
Johnson Controls Unitary Products
31
Figure 23: J20YD Charging Chart
Figure 24: J25YC Charging Chart
Charging Curves
J20YD
200
300
400
500
600
120
130
140
150
160
170
180
Suction Pressure (psi)
Discharge Pressure (psi)
115°
105°
95°
85°
75°
65°
Outdoor Air Entering Condenser (F)
1. Make sure that all condenser fans are running when charging.
2. This chart is applicable to unit with the TXV’s left to the factory setting. If the TXV’s have been
adjusted in the field, the charging chart may no longer apply.
200
300
400
500
600
120
130
140
150
160
170
180
D
isch
ar
g
e
P
ressu
re
(p
si)
Suction Pressure (psi)
Charging Curves
J25YC
115º
105º
95º
85º
75º
65º
1. Make sure that both condenser fans are running when charging.
2. This chart is applicable to unit with the TXV's left to the factory setting. If the TXV's have been
adjusted in the field, the charging chart may no longer apply.
O
u
tdoor
A
ir
Ent
e
ri
ng C
ondense
r (
F
)
