116
APPENDIX B — CONTROL MODES WITH
Humidi--MiZer
™
SYSTEM AND ECONOMIZER
Thermostat input shown for cooling demand (versus temperature
sensor
and
set
point).
Humidistat
input
shown
for
dehumidification demand (versus relative humidity sensor and set
point). Economizer cooling availability is dependent on
outdoor
temperature or enthalpy.
Circuit Subcooling mode = REHEAT 1
Circuit HGRH mode = hot gas reheat = REHEAT 2
Circuit ON mode = normal cooling
Thermostat Control type configuration = 0 = Adaptive, or Unit
Control Type configuration = 3 = Space Temperature, for
Dual-circuit and Tri-Circuit units results in added staging timers
and flex between 1-stage Y1 and 2-stage Y1.
SINGLE-CIRCUIT UNITS
(Thermostat Control Type configuration is ignored)
ECONO AVAILABLE?
Y1
Y2
HUMIDISTAT
CIRCUIT A
ECONOMIZER
NO
OFF
OFF
LOW
OFF
Min. Position
(Econo closed if fan off)
NO
OFF
OFF
HIGH
HGRH
Min. Position
NO
ON
OFF
HIGH
Subcooling
Min. Position
NO
OFF
ON
HIGH
Subcooling
Min. Position
alarm T411: Y2 without Y1
NO
ON
ON
HIGH
Subcooling
Min. Position
no alarm
NO
ON
OFF
LOW
ON
Min. Position
NO
OFF
ON
LOW
ON
Min. Position
alarm T411: Y2 without Y1
NO
ON
ON
LOW
ON
Min. Position
no alarm
YES
OFF
OFF
LOW
OFF
Min. Position
(Econo closed if fan off)
YES
OFF
OFF
HIGH
HGRH
Min. Position
YES
ON
OFF
HIGH
Subcooling
Min. Position
YES
OFF
ON
HIGH
Subcooling
Min. Position
alarm T411: Y2 without Y1
YES
ON
ON
HIGH
Subcooling
Min. Position
no alarm
YES
ON
OFF
LOW
OFF or ON
Cooling
YES
OFF
ON
LOW
OFF or ON
Cooling
alarm T411: Y2 without Y1
YES
ON
ON
LOW
OFF or ON
Cooling
no alarm
DUAL CIRCUIT UNITS
1-Stage Y1 (Thermostat Control Type configuration = 1)
and 2-Stage Y1 (Thermostat Control Type configuration = 2)
ECONO AVAILABLE?
Y1
Y2
HUMIDISTAT
CIRCUIT A
CIRCUIT B
ECONOMIZER
NO
OFF
OFF
LOW
OFF
OFF
Min. Position
(Econo closed if fan off)
NO
OFF
OFF
HIGH
HGRH
HGRH
Min. Position
NO
ON
OFF
HIGH
Subcooling
HGRH
Min. Position
NO
OFF
ON
HIGH
Subcooling
Subcooling
Min. Position
alarm T411: Y2 without Y1
NO
ON
ON
HIGH
Subcooling
Subcooling
Min. Position
NO
ON
OFF
LOW
ON
OFF
Min. Position
NO
OFF
ON
LOW
ON
ON
Min. Position
alarm T411: Y2 without Y1
NO
ON
ON
LOW
ON
ON
Min. Position
YES
OFF
OFF
LOW
OFF
OFF
Min. Position
(Econo closed if fan off)
YES
OFF
OFF
HIGH
HGRH
HGRH
Min. Position
YES
ON
OFF
HIGH
Subcooling
HGRH
Min. Position
YES
OFF
ON
HIGH
Subcooling
Subcooling
Min. Position
alarm T411: Y2 without Y1
YES
ON
ON
HIGH
Subcooling
Subcooling
Min. Position
YES
ON
OFF
LOW
OFF or ON
OFF
Cooling
YES
OFF
ON
LOW
OFF or ON
OFF or ON
Cooling
alarm T411: Y2 without Y1
YES
ON
ON
LOW
OFF or ON
OFF or ON
Cooling
DUAL-CIRCUIT UNITS
Digital (Thermostat Control Type configuration = 3)
ECONO AVAILABLE?
Y1
Y2
HUMIDISTAT
CIRCUIT A
CIRCUIT B
ECONOMIZER
NO
OFF
OFF
LOW
OFF
OFF
Min. Position
(Econo closed if fan off)
NO
OFF
OFF
HIGH
HGRH
OFF
Min. Position
NO
ON
OFF
HIGH
HGRH
HGRH
Min. Position
NO
OFF
ON
HIGH
Subcooling
HGRH
Min. Position
NO
ON
ON
HIGH
Subcooling
Subcooling
Min. Position
NO
ON
OFF
LOW
ON
OFF
Min. Position
NO
OFF
ON
LOW
ON
ON
Min. Position
NO
ON
ON
LOW
ON
ON
Min. Position
YES
OFF
OFF
LOW
OFF
OFF
Min. Position
(Econo closed if fan off)
YES
OFF
OFF
HIGH
HGRH
OFF
Min. Position
YES
ON
OFF
HIGH
HGRH
HGRH
Min. Position
YES
OFF
ON
HIGH
Subcooling
HGRH
Min. Position
YES
ON
ON
HIGH
Subcooling
Subcooling
Min. Position
YES
ON
OFF
LOW
OFF or ON
OFF
Cooling
YES
OFF
ON
LOW
OFF or ON
OFF or ON
Cooling
YES
ON
ON
LOW
OFF or ON
OFF or ON
Cooling
48/
50P
G
and
P
M
Summary of Contents for 48/50PG Series
Page 32: ...32 C07009 Fig 20 Air Baffle Dimensions 48 50PG03 16 48 50PG and PM...
Page 33: ...33 C08077 Fig 21 Air Baffle Dimensions 48 50PG20 28 and 48 50PM16 28 48 50PG and PM...
Page 58: ...58 C08549 Fig 28 48PG03 16 Control Wiring Schematic 48 50PG and PM...
Page 59: ...59 C08550 Fig 29 50PG03 16 Control Wiring Schematic 48 50PG and PM...
Page 64: ...64 C08471 Fig 34 Typical 48PG and PM16 28 Control Schematic 48PM16 28 Shown 48 50PG and PM...
Page 66: ...66 C08557 Fig 36 Typical 50PG and PM16 28 Control Schematic 50PG20 28 Shown 48 50PG and PM...
Page 68: ...68 C08558 Fig 38 Typical 48 50PG and PM16 28 Power Schematic 48 50PM16 28 Shown 48 50PG and PM...
Page 72: ...72 C08565 Fig 42 Typical 48 50PG20 28 Component Arrangement 48 50PG20 24 Shown 48 50PG and PM...
Page 73: ...73 C08067 Fig 43 48 50PM16 28 Component Arrangement 48 50PG and PM...
Page 74: ...74 C08562 Fig 44 48 50PM16 28 with Humidi MiZert Component Arrangement 48 50PG and PM...
Page 208: ...208 48 50PG and PM...
