Friedrich HEAT PUMPS - Manual (Page 13)

13
920-087-04
A. Electrical Rating Tables
All 230/208 volt units are equipped with power cords. See Appendix A on page 21 for wiring in struc tions on 265V units.
NOTE: Use Copper Conductors ONLY. Wire sizes are per NEC, check local codes for over seas ap pli ca tions.
WIRE SIZE
Use ONLY wiring size recommended for
single outlet branch circuit.
FUSE/CIRCUIT
BREAKER
Use ONLY type and size fuse or HACR cir-
cuit breaker indicated on unit’s rating plate.
Proper current protection to the unit is the
responsibility of the owner. NOTE: A time
delay fuse is provided with 265V units.
GROUNDING
Unit MUST be grounded from branch circuit
through service cord to unit, or through sep-
arate ground wire provided on permanently
connected units. Be sure that branch circuit
or general purpose outlet is grounded. The
fi eld supplied outlet must match plug on
service cord and be within reach of service
cord. Refer to Table 1 for proper receptacle
and fuse type. Do NOT alter the service cord
or plug. Do NOT use an extension cord.
RECEPTACLE
The fi eld supplied outlet must match plug on
service cord and be within reach of service
cord. Refer to Table 1 for proper receptacle
and fuse type. Do NOT alter the service cord
or plug. Do NOT use an extension cord.
WIRE SIZING
Use recommended wire size given in Table
2 and install a single branch circuit. All wiring
must comply with local and national codes.
NOTE: Use copper conductors only.
B. Power Cord Information (230/208V models only)
All Friedrich 230/208V PTAC units are shipped from the factory with
a Leakage Current Detection Interrupter (LCDI) equipped power
cord. The LCDI device meets the UL and NEC requirements for
cord connected air conditioners effective August 2004.
To test your power supply cord:
1. Plug power supply cord into a grounded 3 prong outlet.
2. Press RESET.
3. Press TEST (listen for click; Reset button trips and pops out).
4. Press and release RESET (listen for click; Reset button
latches and remains in). The power supply cord is ready for
operation.
ELECTRIC SHOCK HAZARD! Turn off electric power before service or installation.
All electrical connections and wiring MUST be installed by a qualifi ed electrician and
conform to the National Electrical Code and all local codes which have jurisdiction.
Failure to do so can result in property damage, personal injury and/or death.
HACR – Heating, Air Conditioning, Refrigeration
* May be used for 15 Amp applications if fused for 15 Amp
NOTE: 265 volt units are hard wired.
Table 1 250 V Re cep ta cles and Fuse Types
AMPS 15 20* 30
RECEPTACLE
TIME-DELAY TYPE FUSE
(or HACR circuit breaker)
15 20 30
AWG – American Wire Gauge
* Single circuit from main box
** Based on copper wire, single in su lat ed conductor at 60°C
Table 2 Recommended branch circuit wire sizes*
NAMEPLATE / MAXIMUM
CIRCUIT BREAKER SIZE
AWG WIRE SIZE**
15
20
30 14
12
10
NOTE: The LCDI device is not intended to be used as a switch.
Once plugged in the unit will operate normally without the need to
reset the LCDI device. If the LCDI device trips and requires resetting
the cause of the trip should be identifi ed prior to further use of the
PTAC.
If the device fails to trip when tested or if the power supply cord is
damaged it must be replaced with a new supply cord obtained from
the product manufacturer, and must not be repaired.
Figure 10b
30A LCDI Device
15/20A LCDI Device
Figure 10a
TEST RESET
Test Button
Reset Button
2"
4.1"
Test Button
Reset Button
7"
2"