York Sun Select YV28 - Page 65

Table 47: YV50 physical data
Models
Component
YV50
Nominal tonnage 50
ARI cooling performance 2 Stage 4 Stage
Gross capacity @ ARI A point (Btu) 567,149 563,983
ARI net capacity (Btu) 540,000 538,000
EER
10.6
1
/ 10.4
2
10.8
1
/ 10.4
2
IEER CV
12.2
1
/ 11.4
2
n/a
IEER with Intellispeed
15.1
1
/ 14.9
2
n/a
IEER with VAV n/a
16.0
1
/ 15.8
2
CFM 16144 15918
System power (KW) 44.4 43.30
Refrigerant type R-410A R-410A
Refrigerant charge (lb-oz)
System 1 35-08 35-08
System 2 32-14 32-08
ARI heating performance
Heating model N(S)1 N(S)3
Heating type Stg. Low Stg. High
1st stage heat input (K Btu) 320 400
2nd stage heat input (K Btu) 400 400
1st stage heat output (K Btu) 259 324
2nd stage heat output (K Btu) 324 324
Steady state efficiency (%) 81 81
No. of burners 9 9/9
No. of stages / turn down 2/1.25 2/1
Temperature rise range (ºF) 15-20 30-40
Gas limit setting (ºF) (top/bottom) 150 150/150
Gas piping connection (in.) 3/4 1 1/4
Dimensions (in.)
Length 232
Width 90
Height 77
Operating weight (lb) 5984
Compressors 2 Stage 4 Stage
Type Scroll Scroll
Quantity 2 3
Unit capacity steps (%) 50 / 100 25 / 50/ 75 / 100
Condenser coil data
Face area (sq. ft) 112.4
Type MCHX
Thickness (mm) 25
FPI 23
Circuitry type 2-Pass
Evaporator coil data
Face area (sq. ft) 38.9
Rows 5
Fins per inch 15
Tube diameter 3/8
Circuitry type Intertwined
Refrigerant control TXV
Condenser fan data
Quantity 4
Fan diameter (in,) 30
Type Prop
Drive type Direct
Number of motors 4
Motor HP each 2
RPM 1200
Nominal total CFM 41676
Belt drive evap fan data
Quantity 2
Fan size (in.) 20x18
Table 47: YV50 physical data
Models
Component
YV50
Nominal tonnage 50
Type Centrifugal
Static range Std Med High
Motor sheave 1VP60 1VP75 2VP60
Blower sheave 1B5V124 1B5V136 2B5V94
Belt 5VX830 5VX880 5VX780
Motor HP each 10.0 15.0 20.0
Motor RPM 1800 1800 1800
Frame size 215T 254T 256T
Filters
4 - (20 x 20 x 2)
3
,
4
4 - (20 x 20 x 4)
5
8 - (20 x 25 x 2)
3
,
4
Quantity - size
8 - (20 x 25 x 4)
5
ID Blower power (kW)
6361
1
/ 7957
2
6734
1
/ 7615
2
Installation Manual: YORK
®
Sun
™
Select YV28 to YV50
65
Johnson Controls Ducted Systems