Amana VXC20 Series, Installation & Service Reference

Page: 10 / 60

10
System Wiring
Step 1. Calculate Refrigerant Charge Based on
Line Set Length
The condenser unit is shipped with a predetermined factory
charge level as shown below. For longer line sets greater
than 15 feet, add 0.6 ounces of refrigerant per foot. Refer
to the following page for the equivalent length of the elbow
fittings.
NOTICE
T
OTAL
R
EFRIGERANT
=
F
ACTORY
C
HARGE
+ (0.6
OZ
./
FT
. * A
DDITIONAL
F
EET
OF
A
CTUAL
L
INE
S
ET
) .
The following table shows refrigerant amounts for every 5
feet of line.
2-Ton 3-Ton 4-Ton 5-Ton
15 (Factory Charge) 152 154 246 246
20 155 157 249 249
25 158 160 252 252
30 161 163 255 255
35 164 166 258 258
40 167 169 261 261
45 170 172 264 264
50 173 175 267 267
55 176 178 270 270
60 179 181 273 273
65 182 184 276 276
70 185 187 279 279
75 188 190 282 282
80 191 193 285 285
85 194 196 288 288
90 197 199 291 291
95 200 202 294 294
100 203 205 297 297
105 206 208 300 300
110 209 211 303 303
115 212 214 306 306
120 215 217 309 309
125 218 220 312 312
130 221 223 315 315
135 224 226 318 318
140 227 229 321 321
145 230 232 324 324
150 233 235 327 327
155 236 238 330 330
160 239 241 333 333
165 242 244 336 336
170 245 247 339 339
175 248 250 342 342
180 251 253 345 345
185 254 256 348 348
190 257 259 351 351
195 260 262 354 354
200 263 265 357 357
Actual Line Set
Length (ft.)
Unit Tonnage
Total Refrigerant (oz.)
Step 2. Connect Air Conditioner Unit to System
CAUTION
OPEN THE LIQUID VALVE FIRST! IF THE SUCTION SERVICE VALVE IS OPENED
FIRST, OIL FROM THE COMPRESSOR MAY BE DRAWN INTO THE INDOOR
COIL TXV RESTRICTING
REFRIGERANT FLOW AND AFFECTING OPERATION OF THE SYSTEM.