Figure 23.
Sample Template
Installation
SS-SVX002B-EN
27
Note:
If the nameplate states MAX FUSE/CKT BKR, it is
required to use fuses or a HACR type circuit breaker
to protect the system. Other protection devices are
not allowed based upon the product listing.
The unit is provided with terminals for all required field-
wiring. Refer to the electrical schematic supplied with the
unit when making the power and control field-wiring
connections. It is important to identify the options that
were purchased with the unit in order to confirm which
field connections are required.
NOTICE
Compressor Damage!
Improper wire connections could result in the reverse
rotation of the scroll compressors and may eventually
result in damage to the compressor. To correct this
problem, exchange any two of the incoming main
power wires at the main power disconnect switch. Do
NOT rewire the unit’s individual components.
Note:
All wiring must conform to local and national
electrical code requirements. Only use copper
conductors. Wiring terminations may become
loose during transit of the equipment; therefore, it
is required to verify that all wiring terminations be
checked to verify they are secure.
It is important to verify that the main power supply
coincides with the voltage, phase and frequency
information specified on the system nameplate. The
supply voltage measured at the unit must be within ±10%
of the voltage specified on the system nameplate.
Down-flow units are provided with pilot holes in the floor
of the cabinet for the entry of the main power and control
field-wiring. If necessary, these holes may be enlarged to
properly fit the connector. A label stating “MAIN POWER
INPUT” is in close proximity. As an option, piping and
wiring may be routed through the top of the cabinet.
For up-flow units with top piping, pilot holes for entry of
power and control wiring are located in the top of the
cabinet. For up-flow units without top piping, pilot
entrance holes are provided in the cabinet floor or may be
field drilled into a side wall if necessary. See the
installation drawing provided with your unit for
recommended entrance hole locations.
Route the main power wires into the electric box and
terminate the wires at the line side of the main power
disconnect switch as shown in the electrical drawing. A
separate equipment ground lug is provided within the
electrical box for termination of the earth ground wire.
Optional Dual Power
Route the primary and alternate power source wires to the
disconnect switches in the electric box. Terminate the
primary power source to switch A and the alternate power
source to switch B as shown in the electrical drawing.
Leave both switches in the ON position during normal
operation. The system will operate with power source A
unless a switchover (auto or manual) occurs. See
Power Transfer Switching,” p. 12
.
The size of the electric box and location of components
vary according to the CyberAir model and options
selected.
shows a sample electric box layout
(with dual power option) and identifies the major
components. The numbered callouts in
coincide
with the numbered items listed below:
1. Microprocessor Controller I/O Module
2. Control Interface Terminals
3. Preferred Power Selector Switch (Optional)
4. Contactors for Dual Power (Optional)
5. Main Power Disconnect Switch
6. Alternate Power Disconnect Switch (Optional)
7. Ground Lug
8. Velocity Sensor (Optional)
9. Motor Starter Protectors (Quantity Varies)
Sales Order Number:
Model Number: TR-
Item Number:
Serial Number:
Electrical Data:
SCCR: kA RMS Symmetrical
Voltage: Phase:
Hz:
No. Wires: (Including Ground)
FLA:
MCA:
Max Fuse/Ckt. Bkr (HACR type per NEC):
A
Heater:
kW (Nominal)
Humidifier: kW (Nominal)
Evaporator Motor (1):HP: FLA:
Evaporator Motor (2):HP: FLA:
Condenser Motor (1): HP: FLA:
Condenser Motor (2): HP: FLA:
Condensate Pump:
HP: FLA:
Compressor (1):
RLA: LRA:
Compressor (2):
RLA: LRA:
Refrigerant Type: R407C
Charge: Circuit #1: lb oz
Charge: Circuit #2: lb oz
High Side Design Pressure: 278 psig
Low Side Design Pressure: 144
psig
Max. Output Air Temperature: ºF
Blower/Fan Ext. Static Press.: in. w.g.
Max. Inlet Hot Water Temp.: ºF
Hot Water or Steam Pressure:
psig
Minimum Installation Clearance: 0.0 in.
Remote Condenser Type:
Suitable for Indoor:
Outdoor: Use
Date of Manufacture:
Q.A. Acceptance:
SATS
1
Manufactured by
STULZ Air Technology Systems, Inc.
Frederick, Maryland, USA
Evaporator Motor (3):HP: FLA:
Evaporator Motor (4):HP:
FLA:
CyberAir
®
