Johnson Controls YORK YMC2 Operation And Maintenance Manual

Table 103: R-134a pressure to saturated temperature conversion
Pressure
psig (bar)
Dew point
temperature
ºF (ºC)
Pressure
psig (bar)
Dew point
temperature
ºF (ºC)
Pressure
psig (bar)
Dew point
temperature
ºF (ºC)
85.0 (5.86) 79.0 (26.1) 220.0 (15.17) 137.1 (58.4) 355.0 (24.48) 173.3 (78.5)
90.0 (6.21) 82.0 (27.8) 225.0 (15.51) 138.7 (59.3) 360.0 (24.82) 174.4 (79.1)
95.0 (6.55) 84.9 (29.4) 230.0 (15.86) 140.2 (60.1) 365.0 (25.17) 175.5 (79.7)
100.0 (6.89) 87.7 (30.9) 235.0 (16.20) 141.8 (61.0) 370.0 (25.51) 176.6 (80.3)
105.0 (7.24) 90.4 (32.4) 240.0 (16.55) 143.3 (61.8) 375.0 (25.86) 177.7 (80.9)
110.0 (7.58) 93.0 (33.9) 245.0 (16.89) 144.8 (62.3) 380.0 (26.20) 178.8 (81.6)
115.0 (7.93) 95.5 (35.3) 250.0 (17.24) 146.3 (63.5) 385.0 (26.54) 179.9 (82.2)
120.0 (8.27) 98.0 (36.7) 255.0 (17.58) 147.7 (64.3) 390.0 (26.89) 180.9 (82.7)
125.0 (8.62) 100.4 (38.0) 260.0 (17.93) 149.2 (65.1) 395.0 (27.23) 182.0 (83.3)
130.0 (8.96) 102.7 (39.3) 265.0 (18.27) 150.6 (65.9) 400.0 (27.58) 183.0 (83.9)
Table 104: R-513A pressure to saturated temperature conversion
Pressure
psig (bar)
Temp. avg.
°F (°C)
Pressure
psig (bar)
Temp. avg.
°F (°C)
Pressure
psig (bar)
Temp. avg.
°F (°C)
Pressure
psig (bar)
Temp. avg.
°F (°C)
0.0 (0.0) -20.5 (-29.1) 130 (8.96) 99.3 (37.4) 260 (17.93) 146.7 (63.8) 390 (26.89) 179.1 (81.7)
5.0 (0.34) -8.4 (-22.4) 135 (9.31) 101.6 (38.7) 265 (18.27) 148.1 (64.5) 395 (27.23) 180.2 (82.3)
10.0 (0.69) 1.4 (-17.0) 140 (9.65) 103.9 (39.9) 270 (18.62) 149.6 (65.3) 400 (27.58) 181.2 (82.9)
15.0 (1.03) 9.8 (-12.3) 145 (10.0) 106.1 (41.2) 275 (18.96) 151.0 (66.1) 405 (27.92) 182.3 (83.5)
20.0 (1.38) 17.2 (-8.2) 150 (10.34) 108.3 (42.4) 280 (19.31) 152.4 (66.9) 410 (28.27) 183.3 (84.1)
25.0 (1.72) 23.8 (-4.5) 155 (10.69) 110.4 (43.5) 285 (19.65) 153.7 (67.6) 415 (28.61) 184.3 (84.6)
30.0 (2.07) 29.8 (-1.2) 160 (11.03) 112.4 (44.7) 290 (19.99) 155.1 (68.4) 420 (28.96) 185.4 (85.2)
35.0 (2.41) 35.3 (1.8) 165 (11.38) 114.5 (45.8) 295 (20.34) 156.4 (69.1) 425 (29.30) 186.4 (85.8)
40.0 (2.76) 40.4 (4.6) 170 (11.72) 116.4 (46.9) 300 (20.68) 157.7 (69.8) 430 (29.65) 187.4 (86.3)
45.0 (3.10) 45.1 (7.3) 175 (12.07) 118.4 (48.0) 305 (21.03) 159.0 (70.6) 435 (29.99) 188.4 (86.9)
50.0 (3.45) 49.5 (9.7) 180 (12.41) 120.3 (49.1) 310 (21.37) 160.3 (71.3) 440 (30.34) 189.4 (87.4)
55.0 (3.79) 53.7 (12.1) 185 (12.76) 122.2 (50.1) 315 (21.72) 161.6 (72.0) 445 (30.68) 190.3 (87.4)
60.0 (4.14) 57.7 (14.2) 190 (13.10) 124.0 (51.1) 320 (22.06) 162.9 (72.7) 450 (31.03) 191.3 (88.5)
65.0 (4.48) 61.5 (16.4) 195 (13.44) 125.8 (52.1) 325 (22.41) 164.1 (73.4) 455 (31.37) 192.2 (89.0)
70.0 (4.83) 65.1 (18.4) 200 (13.79) 127.6 (53.1) 330 (22.75) 165.3 (74.1) 460 (31.72) 193.2 (89.6)
75.0 (5.17) 68.5 (20.3) 205 (14.13) 129.3 (54.1) 335 (23.10) 166.6 (74.8) 465 (32.06) 194.1 (90.1)
80.0 (5.52) 71.9 (21.2) 210 (14.48) 131.0 (55.0) 340 (23.44) 167.8 (75.4) 470 (32.41) 195.1 (90.6)
85.0 (5.86) 75.0 (23.9) 215 (14.82) 132.7 (55.9) 345 (23.79) 168.9 (76.1) 475 (32.75) 196.0 (91.1)
90.0 (6.21) 78.1 (25.6) 220 (15.17) 134.3 (56.8) 350 (24.13) 170.1 (76.7) 480 (33.09) 196.9 (91.6)
95.0 (6.55) 81.0 (27.2) 225 (15.51) 136.0 (57.8) 355 (24.48) 171.3 (77.4) 485 (33.44) 197.8 (92.1)
100.0 (6.89) 83.9 (28.8) 230 (15.86) 137.6 (58.7) 360 (24.82) 172.4 (78.0) 490 (33.78) 198.7 (92.6)
105.0 (7.24) 86.6 (30.3) 235 (16.20) 139.1 (59.5) 365 (25.17) 173.6 (78.7) 495 (34.13) 199.6 (93.1)
110.0 (7.58) 89.3 (31.8) 240 (16.55) 140.7 (60.4) 370 (25.51) 174.7 (79.3) 500 (34.47) 200.4 (93.6)
115.0 (7.93) 91.9 (33.3) 245 (16.89) 142.2 (61.2) 375 (25.86) 175.8 (79.9) 505 (34.82) 201.3 (94.1)
120.0 (8.27) 94.4 (34.7) 250 (17.24) 143.7 (62.1) 380 (26.20) 176.9 (80.5)
125.0 (8.62) 96.9 (36.5) 255 (17.58) 145.2 (62.9) 385 (26.54) 178.0 (81.1)
Checking and trimming the refrigerant charge
It is important that the amount of chiller refrigerant charge is verified to meet the specified amount
as found in the chiller factory order form (FOF). Reference this document or the unit sales order
screen on the chiller control panel to determine the amount charge required based on the chiller
rating.
During operation, the refrigerant charge level is correct when the Evaporator Approach (STD),
Condenser Approach (STD), Sub-Cooling, and Compressor Discharge Superheat are at the design
values for the condition. For new sales after 2016, these design values are included as part of the
155
YMC
2
Mod B with OptiView Control Center

Johnson Controls YORK YMC2 Specifications

General

Brand	Johnson Controls
Model	YORK YMC2
Category	Chiller
Language	English