Johnson Controls YORK YK H - Pressure temperature chart

Pressure temperature chart
Table 2: Pressure temperature chart
Evaporator
application
Operating point
Refrigerant
type
Condenser mode
Water Brine
Device Units
(Control action) On rise (Control action) On fall
All All X X
High discharge
temp (HDT)
°F/°C (Trip) ≥ 220/104.4 (Reset) < 219/103.8
All All X X High oil temp (HOT) °F/°C (Trip) > 135/57.2 (Reset) < 130/54.4
All All X X
Low oil pressure
(LOP)
psid/kPa (Reset) Chiller stopped
(Trip) Running ≤ 15/103.4 at 0.5 s
(Trip) Prelube ≤ 25/172.3 at 5 s
High pressure (HP)
All
Extended condenser
temperature range
disabled
X X HP psig/kPa (Trip) ≥ 180/1241.1 (Reset) < 120/827.4
All
Extended condenser
temperature range
enabled
X X HP psig/kPa (Trip) ≥ 200/1378.9 (Reset) < 140/965.3
All Heat pump X X HP psig/kPa (Trip) ≥ 364/2509.7 (Reset) < 340/2344.2
Low evaporator pressure (LEP) water duty only smart freeze disabled adjustable 25 psig to 30 psig
All All X LEP psig/kPa
(Reset) Evap pressure > Low
evaporator cutout
(Trip) Evap pressure ≤ Low
evaporator cutout 0.5 s
Low evaporator pressure (LEP) water duty only smart freeze enabled adjustable
All All X LEP psig/kPa
(Reset) > Evap press override
threshold
(Trip) ≤ Evap press override
threshold 120 s
Low evaporator pressure (LEP) brine duty only adjustable trip value based on brine percentage
R-134a All X 1LEP psig/kPa (Reset) > 6–30/41.3–206.8 (Trip) ≤ 6–30/41.3–206.8
R-513A All X 1LEP psig/kPa (Reset) > 8.8–34.4/60.7–237.2 (Trip) ≤ 8.8–34.4/60.7–237.2
R-1234ze All X 1LEP psig/kPa (Reset) > 0.4–18.4/2.8–126.9 (Trip) ≤ 0.4–18.4/2.8–126.9
Table 3: Low/high voltage trip/reset values
Low line voltage operating point High line voltage operating point
SSS type
Compressor motor
supply voltage range in V
Cutout in
V, on fall
Cutin in
V, on rise
Cutout in
V, on rise
Cutin in
V, on fall
LCSSS 200–208 160 174 227 226
LCSSS 220–240 185 200 262 261
LCSSS 380 305 331 415 414
LCSSS 400 320 349 436 435
LCSSS 415 335 362 454 453
LCSSS 440–480 370 400 524 523
LCSSS 550–600 460 502 65 654
LCSSS Supply voltage range disabled None 0 None 0
17Wiring Diagrams for Model YK (Style H) with OptiView Control Center and SSS with Modbus, VSD with Modbus