Amana AVXC20 Series User Manual

SERVICING
50
The following table shows refrigerant amount 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
Unit Tonnage
Refrigerant (oz.)
Actual Line Set
Length (ft.)
Initial Refrigerant for Given Line Length
Capacity degradation as a function of line set length and suction
tube diameter can be found in the table below.
S-202 DUCT STATIC PRESSURES AND/OR STATIC PRESSURE
DROP ACROSS COILS
This minimum and maximum allowable duct static pressure for
the indoor sections are found in the specifications section.
Tables are also provided for each coil, listing quantity of air (CFM)
versus static pressure drop across the coil.
Too great an external static pressure will result in insufficient air
that can cause icing of the coil. Too much air can cause poor
humidity control and condensate to be pulled off the evaporator
coil causing condensate leakage. Too much air can also cause
motor overloading and in many cases this constitutes a poorly
designed system.
S-203 AIR HANDLER EXTERNAL STATIC
To determine proper air movement, proceed as follows:
1. Using a draft gauge (inclined manometer), measure the static
pressure of the return duct at the inlet of the unit, (Negative
Pressure).
2. Measure the static pressure of the supply duct, (Positive Pres-
sure).
3. Add the two readings together.
TOTAL EXTERNAL STATIC
NOTE: Both readings may be taken simultaneously and read di-
rectly on the manometer if so desired.
4. Consult proper table for quantity of air.
2T 3/8 3/8 100% 1/2 0.984 1/2 0.937 1/2 0.85
3T 3/8 7/8 100% 3/4 0.998 3/4 0.986 3/4 0.966
4T 3/8 1 1/8 100% 7/8 0.998 7/8 0.989 7/8 0.972
5T 3/8 1 1/8 100% 7/8 0.996 7/8 0.984 7/8 0.958
25 feet line set 100 feet line set 250 feet line set
Suction
tube
Outer
Diameter
(inch)
Capacity
multiplier
Suction
tube
Outer
Diameter
(inch)
Capacity
multiplier
Suction
tube
Outer
Diameter
(inch)
Capacity
multiplier
25 feet line set standard liquid & suction tubes
Ton
Liquid
tube
Outer
Diameter
(inch)
Suction
tube
Outer
Diameter
(inch)
Baseline
capacity %

Amana AVXC20 Series Specifications

General

Brand	Amana
Model	AVXC20 Series
Category	Air Conditioner
Language	English