Trane GRCA - Unit Operation Principles; General Operation and Gas Control

X . GAS EQUIPMENT
START-UP
Customer
Type of Equip :
Serial Number
Name Plate Voltage:
Type
of Gas:
Natural
Job Name & Number
PRE -I NSPECTION INFORMATION
W i th po w er a nd ga s off
.
Unit Heater Duct Furnace Indoor
Model
Number
Name Plate Amperage:
LP Tank Capacity
lbs.
Rating:
kg
Rooftop
BTU
@ -O F
kw Q ° C
Are all
panels,
doors, vent caps in place?
Has
the unit suffered any external damage?
Damage
Does
the gas
piping
and electric wiring appear to be installed in
a
professional manner?
Has the gas
and electric been
inspected by
the
local authority having jurisdiction?
Is
the
gas supply properly sized for the equipment?
Were the installation instructions followed
when the equipment was installed?
Have all field installed controls
been
installed?
Do
you
understand all the controls
on
this
equipment? /f
not , contact your
wholesaler
or rep .
(DO NOT START this equipment
unless you fully
understand the
controls . )
GENERAL
With power and
gas off .
I ^
Make
certain
all packing has been removed.
Tighten all electrical terminals
and connections.
Check damper linkages for tightness.
^ Check all fans & blowers for free movement.
^ Check all controls for proper settings.
1 71
Check all set screws on blowers and bearings.
0 Check
belt
tightness.
BLOWER
W i th power on and gas
off .
l ^
Check
voltage L1 L2
L3 _
1 71
Check rotation of main blower.
^ Check
motor amps L1
L2
L3
^
Blower
RPM
I
^
Check air filters. (Record quantity &
size.)
GAS
HEATING
With power and gas on .
^ Inlet gas pressure.
in.
W.C. or
171
Pilot
&
main burner ignition.
^ Manifold
gas
pressure. in. W.C. or
^ Cycle
on HIGH
LIMIT.
171
Cycle firestat and/or freezestat.
C3
Check electronic modulation. Set at:
171
Check mechanical modulation. Set at:
^ Cycle and check all other controls not listed.
f ^ Check operation
of
remote panel.
Entering
air
temp.
OF
or °C
^
Discharge air temp. (high
fire) OF. or _
I ^
External
static pressure in. W.C. or
f ^ Cycle by thermostat or operating control.
kPa
kPa
_ ° C
kPa
25