FZ4ANP: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
7
To change motor speeds disconnect the BLUE fan lead from motor
connector terminal #2 (factory default position) and move to desired
speed-tap; 1, 2, 3, or 5.
On single stage systems with dehum and two stage systems, use blower
speed taps 2 and 3 for straight match systems and blower speed taps 1
and 2 for up-sized indoor systems..
Speed-taps 1, 2, and 3 have a 90 second blower off time delay
pre-programmed into the motor. Speed-tap 4 is used for electric heat
only (with 0-second blower time delay) and the WHITE wire should
remain on tap 4. Speed-tap 5 is used for high static applications, but has
a 0-second blower time delay pre-programmed into the motor. See
Airflow Performance tables for actual CFM. Also, see
for motor
speed selection location.
NOTE:
In low static applications, lower motor speed tap should be used
to reduce possibility of water being blown off coil.
REFRIGERANT TUBING CONNECTION AND
EVACUATION
Use accessory tubing package or field-supplied tubing of refrigerant
grade. Suction tube must be insulated. Do not use damaged, dirty, or
contaminated tubing because it may plug refrigerant flow-control
device. ALWAYS evacuate the coil and field-supplied tubing to 500
microns before opening outdoor unit service valves.
Units have sweat suction and liquid tube connections. Make suction tube
connection first.
1. Cut tubing to correct length.
2. Insert tube into sweat connection on unit until it bottoms.
3. Braze connection using silver bearing or non-silver bearing brazing
materials. Do not use solder (materials which melt below 800°F /
427°C). Consult local code requirements.
4. Evacuate coil and tubing system to 500 microns using deep vacuum
method.
REFRIGERANT FLOW-CONTROL DEVICE
The FZ4ANP(024-061) size units come equipped with a R-410A
refrigerant TXV.
Always use outdoor units designed to match indoor fan coil applications.
CONDENSATE DRAINS
To connect drains, the cap openings must be removed. Use a knife to
start the opening near the tab and using pliers, pull the tab to remove the
disk. Clean the edge of the opening if necessary and install the
condensate line. Finally caulk around the lines where they exit the fitting
to retain the low leak rating of the unit.
Units are equipped with primary and secondary 3/4-in. FPT drain
connections. For proper condensate line installations see
,
and
. To prevent property damage and achieve
optimum drainage performance, BOTH primary and secondary drain
lines should be installed and include properly-sized condensate traps
(
). Factory-approved condensate traps are available. It
is recommended that PVC fittings be used on the plastic condensate pan.
Finger-tighten plus 1-1/2 turns. Do not over-tighten. Use pipe dope.
NOTE:
When connecting condensate drain lines, avoid blocking filter
access panel, thus preventing filter removal. After connection, prime
both primary and secondary condensate traps.
A03002
Fig. 15 – Recommended Condensate Trap
A03013
Fig. 16 – Insufficient Condensate Trap
CAUTION
!
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in product or property damage.
A brazing shield MUST be used when tubing sets are being brazed to
the unit connections to prevent damage to the unit surface and
condensate pan fitting caps.
CAUTION
!
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in product or property damage.
Wrap a wet cloth around rear of fitting to prevent damage to TXV and
factory-made joints.
CAUTION
!
PRODUCT OPERATION HAZARD
Failure to follow this caution may result in improper product operation.
If using a TXV in conjunction with a single-phase reciprocating
compressor, a compressor start capacitor and relay are required.
Consult outdoor unit pre-sale literature for start assist kit part number.
CAUTION
!
PRODUCT OR PROPERTY DAMAGE HAZARD
Failure to follow this warning caution may result in product or property
damage.
The conversion of the fan coil to downflow requires special procedures
for the condensate drains on both A-coil and Slope-coil units. The
vertical drains have an overflow hole between the primary and
secondary drain holes. This hole is plugged for all applications except
downflow, and must be used for downflow. During conversion process,
remove plastic cap covering vertical drains only and discard. Remove
plug from overflow hole and discard. At completion of downflow
installation, caulk around vertical pan fitting to door joint to retain low
air leak performance of the unit.
2” MIN
(51 mm)
UNIT
2” MIN
(51 mm)
DO NOT USE SHALLOW RUNNING TRAPS!
