Roof Top Units
HA / 34 /45 /52 /61 / 75 / 89 / 110 RC
Roof Top Unit
17
MO1 : outdoor air fan motor (see table 4)
CO1 : capacitor of motor MO1 (see table 4)
FO1 : contact of thermal relay of motor MO1
K3
: contactor of indoor air fan motor (for HA 34, this is a relay)
MI3
: indoor fan motor (see table 5 for HA 34)
FT3
: internal safety of motor MI3 or thermal relay contacts of motor MI3
C3
: capacitor of motor MI3
2.2)
FAN MOTORS & RELATED EQUIPEMENT
LOW FAN SPEED
CAPACITOR VALUE
Model / Outdoor Motor
HA 34/45/52/61/75
Red Wire
10 µF
HA 89/ 110
White wire
12 µF
TABLE 4
This motor is fitted with an internal auto-reset overload protection
Model Indoor Motor
Connect to
Elco Motor Colore
White
HA 34
Fan Medium ( FM )
ORANGE
Fan Hight ( FH )
BROWN
TABLE 5: FACTORY WIRING
MODEL
34
45
52
61
75
89
110
Adjust of Thermal
Relays FT3 Range
Adjustement
-
1.8 - 2.6A
1.9A
1.2 - 1.8A
1.5A
1.8 - 2.6A
1.9A
2.6 - 3.7A
2.6A
2.6 - 3.7A
2.9A
2.6 - 3.7A
2.8A
Contactor AC3
K1
K2
K3
9A
-
5A
9A ( 18 )
-
9A
12A
-
9A
18A
-
9A
25A
-
25A
9A
9A
9A
9A
9A
9A
3) RANGE AND SEITTING OF INDOOR FAN THERMALRELAYS, CURRENT
RATING OF UNIT CONTACTORS ( CLASS AC3 )
4) ADJUSTEMENT OF PRESSURE SWITCHS ( AUTO - RESET CONTROLS )
LP1
: fixed adjustment low pressure 140 kPa 1,4 bar (20,3 PSI)
LP2
: fixed adjustment low pressure 140 kPa 1,4 bar (20,3 PSI)
HP1
: fixed adjustment high pressure 2920 kPa 29,2 bar (423,7 PSI)
HP2
: fixed adjustment high pressure 2920 kPa 29,2 bar (423,7 PSI)
BK
: black
WH
: white
OG
: orange
RD
: red
BN
: brown
GY
: grey
BU
: blue
VT
: purple
GNYE : green/yellow
5) COLOUR CODE
