135
20 Ton MCHX CIRCUIT A Ch
a
rging Ch
a
rt
All Compre
ss
or
s
on
a
Circ
u
it M
us
t
b
e Oper
a
ting
All O
u
tdoor F
a
n
s
M
us
t
b
e Oper
a
ting
70
75
8
0
8
5
90
95
100
105
110
115
120
125
1
3
0
1
3
5
140
145
150
55
60
65
70
75
8
0
8
5
90
95
100
105
110
115
120
125
O
u
tdoor Air Temper
a
t
u
re (deg F)
Sa
t
u
r
a
te
d
D
i
s
ch
a
rg
e
T
e
mp
e
r
a
t
u
re
(
d
e
g
F
)
Red
u
ce Ch
a
rge if A
b
ove C
u
rve
Add Ch
a
rge if Below C
u
rve
S S
T = 4 5 F
S S
T = 5 5 F
S S
T =
3
5 F
20 Ton MCHX CIRCUIT B Ch
a
rging Ch
a
rt
All Compre
ss
or
s
on
a
Circ
u
it M
us
t
b
e Oper
a
ting
All O
u
tdoor F
a
n
s
M
us
t
b
e Oper
a
ting
70
75
8
0
8
5
90
95
100
105
110
115
120
125
1
3
0
1
3
5
140
145
150
55
60
65
70
75
8
0
8
5
90
95
100
105
110
115
120
125
O
u
tdoor Air Temper
a
t
u
re (deg F)
Sa
t
u
r
a
te
d
D
i
s
ch
a
rg
e
T
e
mp
e
r
a
t
u
re
(
d
e
g
F
)
Red
u
ce Ch
a
rge if A
b
ove C
u
rve
Add Ch
a
rge if Below C
u
rve
SS
T= 45 F
SS
T= 55 F
SS
T=
3
5 F
Fig. 48 — Charging Chart — 48/50A2,A3,A4,A5020 with R-410A Refrigerant
LEGEND
MCHX—
Microchannel Heat Exchanger
SST
—
Saturated Suction Temperature
a48-8401
Содержание Carrier Weathermaker 48A2
Страница 105: ...105 Fig 20 Typical Main Control Box Wiring Schematic 48 50A2 A3 A4 A5 Units...
Страница 106: ...106 Fig 21 Typical Auxiliary Control Box Wiring Schematic...
Страница 107: ...107 Fig 22 Typical 2 Stage Gas Heat Wiring Schematic Size 060 Units Shown a48 8357...
Страница 108: ...108 TO NEXT PAGE Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown A48 7296...
Страница 109: ...109 Fig 23 Typical Staged Gas Heat Wiring Schematic Size 060 Units Shown cont A48 8358...
Страница 110: ...110 Fig 24 Typical Electric Heat Control Schematic 50 Series Size 060 Units Shown a50 8228...
Страница 111: ...111 Fig 25 Typical Power Schematic 48 50A2 A3 A4 A5 060 Unit Shown...
Страница 112: ...112 Fig 26 Typical Low Ambient Controls Option Wiring...
Страница 113: ...113 Fig 27 Typical Small Chassis Component Location Size 020 035 Units...
Страница 114: ...114 Fig 28 Typical Large Chassis Component Locations Size 040 060 Units...
Страница 118: ...118 Fig 30 Economizer Control Board ECB1 and VAV Control Board ECB2 A48 7706...
Страница 142: ...142 A48 3733 Fig 56 Main Burner Removal...
Страница 176: ...176 APPENDIX C VFD INFORMATION cont Fig F Internal Enclosure Fan Replacement A48 7716...
