Provide For Condensate Disposal - Carrier 50JZ024 Installation, Start-Up And Service Instructions Manual

UNIT SIZE
NOMINAL CAPACITY (ton)
OPERATING WEIGHT (lb)
COMPRESSOR QUANTITY
TYPE
REFRIGERANT
REFRIGERANT METERING DEVICE
Refrigerant (R-410A) Quantity (lb.)
ORIFICE ID (in.)
ORIFICE OD (in.)
OUTDOOR COIL
Rows...Fins/in.
Face Area (sq ft)
OUTDOOR FAN
Nominal Airflow (CFM)
Diameter
Motor HP (RPM)
INDOOR COIL
Rows...Fins/in.
Face Area (Sq Ft)
INDOOR BLOWER
Nominal Airflow (CFM)
Size (in.)
Motor (HP)
HIGH-PRESSURE SWITCH (psig)
Cutout
Reset (Auto)
LOSS-OF-CHARGE/LOW-PRESSURE SWITCH
(Liquid Line) (psig)
Cutout
Reset (Auto)
RETURN-AIR FILTERS (in.)*
Throwaway
* Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow 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. wg.
Table 2—Minimum Airflow for Reliable Electric
Heater Operation 50JZ (Cfm)
SIZE 024 030
AIRFLOW (CFM) 800 1000*
* The 030 size models must be run on medium or high speed when used in
conjunction with 15 Kw electric heat accessory.
RETURN
AIR
TOP COVER
Fig. 9—Typical Installation
2. Remove horizontal duct covers to access bottom return and
supply knock out panels.
3. Use a screwdriver and hammer to remove the panels in the
bottom of the base pan.
NOTE: These panels are held in place with tabs similar to an
electrical knockout.
4. Reinstall horizontal duct covers (Fig. 10) to block off the
horizontal air openings.
Table 1—Physical Data—Unit 50JZ
024
2
299
1
7.0
0.061
2@0.032
2...17
8.5
2350
22
1/8 (825)
3...15
3.7
800
10x10
1/4
20x20x1
036 042 048 060
1200 1400 1600 2000
INDOOR
THERMOSTAT
FROM
POWER
SOURCE
DISCONNECT
PER NEC*
*NEC - NATIONAL ELECTRICAL CODE
C00063
030 036
2 1/2 3
320 328
1 1
SCROLL COMPRESSOR
R-410A
AccuRater®
8.9 9.3
0.061 0.067
2@0.040 2@0.040
2...17 2...17
10.3 10.3
2350 2800
22 22
1/8 (825) 1/4 (1100)
3...15 4...15
3.7 3.7
1000 1200
10x10 10x10
1/4 1/2
610 ± 15
420 ± 25
20 ± 5
45 ± 10
20x20x1 20x24x1
Fig. 10—50JZ with Duct Covers On
NOTE: Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
Step 6—Provide for Condensate Disposal
NOTE: Ensure that condensate-water disposal methods comply
with local codes, restrictions, and practices.
The 50JZ units dispose of condensate through a 3/4 -in. NPT
female fitting that exits on the compressor end of the unit.
Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground
level installations. Install a field-supplied condensate trap at end of
7
042 048
3-1/2 4
350 355
1 1
9.5 10.6
0.073 0.076
2@0.038 2@0.046
2...17 2...17
13.5 13.5
2500 3300
22 22
1/8 (825) 1/4 (1100)
3..15 4...15
4.7 4.7
1400 1600
11x10 11x10
1/2 1/2
24x30x1 24x30x1
Duct Covers
060
5
428
1
12.4
0.088
2@0.052
2...17
15.4
3300
22
1/4 (1100)
4...15
5.7
1750
11x10
1
24x30x1
C00092