6
Table 6 — 38AUD*12-14 Physical Data
INSTALLATION
Jobsite Survey
Complete the following checks before installation.
1. Consult local building codes and the NEC (National Electrical
Code) ANSI/NFPA 70 for special installation requirements.
2. Determine unit location (from project plans) or select unit
location.
3. Check for possible overhead obstructions which may inter-
fere with unit lifting or rigging.
Step 1 — Plan for Unit Location
The 38AU units are designed and approved for outdoor installa-
tion only. Do not locate these units indoors. Do not add ducting to
unit fan system.
Select a location for the unit and its support system (pad, rails or
other) that provides for the minimum clearances required for safe-
ty. This includes the clearance to combustible surfaces, unit per-
formance and service access below, around and above unit as
specified in unit drawings. See Fig. 4.
NOTE: Local codes may require different clearances than
specified in Fig. 4. It is the responsibility of installers to be
knowledgeable in local codes and to modify the recommended
clearances to satisfy local codes.
NOTE: Consider also the effect of adjacent units on airflow per-
formance and control box safety clearance.
Fig. 4 — Service Clearance Dimensional Drawing
Do not install the outdoor unit in an area where fresh air supply to
the outdoor coil may be restricted or when recirculation from the
condenser fan discharge is possible. Do not locate the unit in a
well or next to high walls.
Evaluate the path and required line length for interconnecting re-
frigeration piping, including suction riser requirements (outdoor
unit above indoor unit), liquid line lift (outdoor unit below indoor
unit) and hot gas bypass line. Relocate sections to minimize the
length of interconnecting tubing.
Although unit is weatherproof, avoid locations that permit water
from higher level runoff and overhangs to fall onto the unit.
TWO CIRCUIT MODELS with RTPF – ROUND TUBE/PLATE FIN COIL DESIGN
38AUD*12
38AUD*14
Refrigeration System
# Circuits / # Comp. / Type
2 / 2 / Scroll
2 / 2 / Scroll
Refrigerant Type
Puron
®
R-410A
Puron R-410A
R-410A shipping charge A/B (lbs)
9.0 / 9.0
9.0 / 9.0
System charge w/ fan coil*
11.0 / 11.0
22.0 / 22.0
Metering device
TXV
TXV
High-press. Trip / Reset (psig)
630 / 505
630 / 505
Low-press. Trip / Reset (psig)
54 / 117
54 / 117
Compressor
Model (Qty)
ZP51 (2)
ZP67 (2)
Oil Charge A/B (oz)
42 / 42
56 / 56
Speed (rpm)
3500
3500
Condenser Coil
Material
Al/Cu
Al/Cu
Coil type
RTPF
RTPF
Rows / FPI
2 / 17
3 / 17
total face area (ft
2
)
25.1
31.8
Condenser fan / motor
Qty / Motor drive type
2 / direct
2 / direct
Motor HP / RPM
1
/
4
/ 1100
1
/
4
/ 1100
Fan diameter (in.)
22
22
Nominal Airflow (cfm)
6,000
6,000
Watts (total)
610
610
Piping Connections
Qty / Suction (in. ODS)
2 / 1
1
/
8
2 / 1
3
/
8
Qty / Liquid (in. ODS)
2 /
3
/
8
2 /
1
/
2
*
Approximate system charge with about 25 ft piping of sizes indicated with matched 40RU.
IMPORTANT: DO NOT BURY REFRIGERANT LINES.
REAR:
Min 1
8
" (457 mm)
req
u
ired for
s
ervice
RIGHT:
Min 1
8
" (457 mm)
req
u
ired for
s
ervice
LEFT:
Min 1
8
" (457 mm)
req
u
ired for
s
ervice
FRONT:
42” (1067 mm)
req
u
ired for
s
ervice
NOTE: O
bs
erve req
u
irement
s
for
3
9" (914 mm) oper
a
ting
cle
a
r
a
nce on either Left or Re
a
r coil opening.