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I STALLER'S GUIDE
NOTE:
A 3/16"
Allen
wrench
is required
to open liquid
line
service valve. A 1/4" Open End or Adjustable
wrench
is required
to open gas line valve. A 3/4" Open End wrench
is required
to take
off the valve stem cap.
9. The liquid
line shut-off
valve can now be opened.
Remove
shut-off
valve cap.
Fully insert
hex wrench
into the stein and
backout
counterclockwise
until valve stem just touches
retainer
ring (approximately
five (5) turns)
observing
WARNING
state-
ment on page 2. See Figure
3.
10. Replace liquid service pressure
tap port cap and valve stein
cap.
These
caps MUST
BE REPLACED
to prevent
leaks.
Replace
valve
stem
and
pressure
tap cap finger
tight,
then
tighten
an additional
1/6 turn.
11. The
gas valve can now be opened.
Open the gas valve by
removing
the shut-off
valve
cap and
turning
the valve
stem
1/4 turn
counterclockwise,
using
1/4" Open End or Adjustable
wrench.
See Figure
4.
12. The gas valve is now open fbr refrigerant
flow. Replace valve
stem cap to prevent
leaks.
See Figure
4.
If refrigerant
lines are longer than 25 feet and/or a different
size
than recommended,
it will be necessary
to adjust
system
refrig-
erant
charge
upon completion
of installation.
F. ELECTRICAL
CONNECTIONS
CAUTION : Three phase scroll compressors
will run in reverse
if powered
up with
improper
phasing.
If the
compressor
is running
backwards
there
will
be
little
or no difference
in suction
and
discharge
pressure
and
it will
make
a distinct
louder
sound.
Reversing
any
two
of the
field
installed
power
leads
will
correct
the
compressor
rotation.
Failure
to change
the power
leads
to
correct
compressor
rotation
may
result
in compressor
damage
during
operation.
A WARNING:
When
installing
or servicing
this
equipment,
ALWAYS
exercise
basic
safety
precau-
tions
to avoid
the possibility
of electric
shock.
A CAUTION : Three phase scroll c ompressors
will run in reverse
if powered
up with
improper
phasing.
1. Power wiring and grounding of equipment mu st comply with
local codes.
2.
Power
supply
must
agree
with
equipment
nameplate.
3. Install
a separate
disconnect
switch at the outdoor
unit.
4. Ground
the outdoor
unit per local code requirements.
5. Provide
flexible
electrical
conduit
whenever
vibration
trans-
mission
may create
a noise problem
within
the structure.
6. The use of color coded low voltage
wire is recommended
to
simplify
connections
between
the outdoor
unit, the thermostat
and the indoor unit.
Table 1 --- NEC Class II Control
Wiring
24 VOLTS
WIRE SIZE
MAX. WIRE LENGTH
*22 AWG
30 FT.
20 AWG
100 FT.
18 AWG
150 FT
16 AWG
225 FT.
14 AWG
300 FT.
'_If 22 AWG is used, make
sure it is high
quality
wire.
7. Table i defines
maximum
total
length
of low voltage
wiring
from outdoor
unit,
to indoor unit,
and to thermostat.
8. Mount
the indoor thermostat
in accordance
with instruction
included
with the thermostat.
Wire per appropriate
hook-up
diagram
(included
in these
instructions).
G. COMPRESSOR
SUMP
HEAT
All models
are equipped
with
compressor
sump
heat
except
TTP030,
036, 042, & 048D100A.
Al_er
all electrical
wiring
is complete,
SET THE
THERMO-
STAT SYSTEM
SWITCH
IN THE OFF POSITION
SO COM-
PRESSOR
WILL
NOT RUN, and apply
power by closing
the
system
main disconnect
switch.
This will activate
the compres-
sor sump
heat.
Do not change
the Themnostat
System
Switch
until
power
has been
applied
long enough
to evaporate
any
liquid HCFC-22
in the compressor
(30 minutes
for each pound
of HCFC-22
in the system
as shown on the nameplate).
Follow-
ing this
procedure
will
prevent
compressor
damage
at the
initial
start-up.
Record the "POWER
APPLIED
DATE"
on the designated
lines
below:
Time
A.M./P.M.
Date
By
(Electrician)
H. OPERATIONAL
AND CHECKOUTPROCEDURES
Final
phases
of this installation
are the unit Operational
and
Checkout
Procedures
which
are found in this
instruction.
To
obtain
proper
perfbrmance,
all units
must
be operated
and
charge
adjustments
made in accordance
with procedures
found
in the Service
Facts.
I. ELECTRIC
HEATERS
Electric
heaters,
if used, are to be installed
in the air handling
device according
to the instructions
accompanying
the air han-
dler and the heaters.
J. STARTCONTROL
The single phase
units
have quick start
components
which
are
factoryinstalled,
except for TTP030-48D100A
& TTP060E100A.
Provisions
_'e
made
in the these
units
for field
installed
BAYKSKT252A
plug-in
accessory
start kit, as required.
The kit
is installed
inside
the control box of the unit.
K. OUTDOORTHERMOSTAT
An outdoor
thermostat
TAYSTAT250A
may be field installed.
For data,
see wiring
diagram
attached
to unit and instruction
sheet
packaged
with outdoor
thermostat.
PAGE 4
Pub. No. 18-AC34D1-5
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