Application Factors - Rated Cfm Vs. Actual Cfm; Typical Applications With Mc Multi-Position Coils; Cooling Models With Electric Heat - York MV Technical Manual

255427-YTG-F-1006

APPLICATION FACTORS - RATED CFM VS. ACTUAL CFM

% OF RATED AIR FLOW
CAPACITY FACTOR

Typical Applications with MC Multi-Position Coils

THERMOSTAT
R
G
Y
W1
W2
C

COOLING MODELS WITH ELECTRIC HEAT

CONTROL WIRING - MV SERIES
Unitary Products Group
80%
0.96
Up Flow
Down Flow
MA SERIES - Air Handler Control Wiring
Typical A/C - Cooling only Applications
AIR HANDLER
1 - STAGE
BOARD
AIR CONDITIONING
R
G
Y / Y2 Y
Y1
W2
HUMIDISTAT *
W1
O
HUM
X / L
COM
C
CONTROL WIRING - MA Series - Air Handler & New UPG HP Systems
Two Stage H/P with York Guard VI Board & Copeland "Ultra Tech"
Conventional Application - Not Hot Heat Pump
AIR HANDLER
THERMOSTAT
R
G
Y2
Y1
E
W
O
X / L
C
90% RATED CFM
0.98
MA SERIES - Air Handler Control Wiring
Typical A/C with Electric Heat Applications
AIR HANDLER
THERMOSTAT
BOARD
R R
G G
Y Y / Y2
Y1
W2 W2
W1 W1
C O
HUM
X / L
COM
BOARD
R
G
Y / Y2
Y1
W2
W1
O
HUMIDISTAT *
HUM
X / L
COM
110%
1.00 1.02
Horizontal Right
Horizontal Left
1 - STAGE
AIR CONDITIONING
Y
HUMIDISTAT *
C
2 - STAGE SCROLL
HEAT PUMP
R
Y2
Y2 OUT
Y1
W2 OUT
W1 OUT
W
O
BS
X / L
C
120%
1.03
11