Carrier PHR524000K 0B1 Series, Руководство по установке, Страница: 10 / 34

10 51801210406
Specifications are subject to change without notice.
If an accessory electric heater is installed, low voltage leads from
heater must be connected to factory supplied control leads from
Indoor Fan Board P4 connector.
NOTE : If the unit 24V wires do not have a matching receptacle,
cut the 24V wires from the electric heater plug, strip the ends, and
wire nut together to match the schematic connections. If the electric
heater 24V wires do not have a matching plug, cut the 24V wires
from the unit receptacle, strip the ends, and wire nut together to
match the schematic connections.
Factory wires are provided for electric heat staging W1 and W2
(W2 and W3 on IFB). If room thermostat has only one stage of
supplemental heat, connect white and violet wires shown in Fig. 10
to second stage heat field wire.
Some electric heaters have four control wires (plus common wire).
Consult unit wiring diagram and electric heater wiring diagram for
additional details.
TRANSFORMER PROTECTION
The transformer is of the energy--limiting type, however a direct
short will likely blow a secondary fuse. If an overload or short is
present, correct overload condition and check for blower fuse on
Indoor Fan Board. Replace fuse as required with correct size and
rating.
Table 1 – Physical Data
UNIT SIZE 24 30 36 42 48 60
NOMINAL CAPACITY (ton) 2 2---1/2 3 3---1/2 4 5
SHIPPING WEIGHT lb.
SHIPPING WEIGHT (kg)
347
157
393
178
420
191
466
212
462
210
511
232
COMPRESSORS
Quantity
Scroll
1
REFRIGERANT (R---410A)
Quantity lb
Quantity (kg)
8.2
3.7
11.2
5.1
11.0
5.0
14.6
6.6
12.0
5.4
14.8
6.7
REFRIGERANT METERING DEVICE TXV, Indoor TXV
ORIFICE
ID (in.)
ID (mm)
.032 (2)
0.81 (2)
.035 (1) .038 (1)
.89 (1) .97 (1)
.
042 (2)
1.07 (2)
.042 (2)
1.07 (2)
.042 (2)
1.07 (2)
.052 (2)
1.32 (2)
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
1...21
18.8
2...21
18.8
2...21
13.6
2...21
19.4
2...21
17.5
2...21
23.3
OUTDOOR FAN
Nominal Cfm
Diameter in.
Diameter (mm)
Motor Hp (Rpm)
2100
24
609.6
1/12 (800)
2500
24
609.6
1/8 (810)
3000
26
660.4
1/5 (810)
3000
26
660.4
1/5 (810)
3300
26
660.4
1/5 (810)
3600
26
660.4
1/5 (810)
INDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
3...17
3.7
3...17
3.7
3...17
4.7
3...17
4.7
3...17
5.7
4...17
5.7
INDOOR BLOWER
Nominal Low Stage Cooling Airflow (Cfm)
Nominal High Stage Cooling Airflow (Cfm)
Size in.
Size (mm.)
Motor HP (RPM)
675 775 900 1050 1200 1400 675
855
10x10
254x254
1/2 (1050)
775
1000
10x10
254x254
1/2 (1050)
900
1200
11x10
279.4x254
3/4 (1000)
1050
1400
11x10
279.4x254
3/4 (1075)
1200
1600
11x10
279.4x254
1.0 (1075)
1400
1750
11x10
279.4x254
1.0 (1075)
HIGH---PRESSURE SWITCH
(psig) Cut---out Reset (Auto)
650 +/--- 15
420 +/--- 25
LOW---PRESSURE SWITCH
(psig) cut---out Reset (auto)
20 +/--- 5
45 +/--- 5
RETURN---AIR FILTERS †
}
Throwaway Size in.
Throwaway Size (mm)
20x20x1
508x508x25
20x24x1
508x610x25
24x30x1
610x762x25
24x36x1
610x914x25
{
Required filter sizes shown are based on the larger of the AHRI (Air Conditioning Heating and Refrigeration Institute) rated cooling airflow or the heating air-
flow velocity of 300 ft/minute for throwaway type or 450 ft/minute for high---capacity type. Air filter pressure drop for non---standard filters must not exceed 0.08
in. W.C.
}
If using accessory filter rack refer to the filter rack installation instructions for correct filter sizes and quantity.
Table 2 – Minimum Airflow for Safe Electric Heater Operation (CFM)
SIZE 24 30 36 42 48 60
Cfm 850 1000 1200 1400 1600 1750
PHR5