Rapid 7500 136, Инструкция по установке, эксплуатации и обслуживанию

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7500-S
ERIES
I
NSTALLATION
, O
PERATION AND
S
ERVICE
M
ANUAL
118 of 143
17.4 Manifold and Controls
17.5 Burner
17.6 Filters
17.7 Motor and Drive Components
Manifold Periodically check f u el control assem b ly, and internal and external piping for
leaks. Relief v ent lines to o u tdoors on f u el controls sho u ld b e checked to
ens u re against b lockage ca u sed b y insects or any other s ub stance. Clean as
req u ired.
Air Flow Switch An ann u al check of the t ub es attached to the air flo w s w itch sho u ld b e made
to ens u re against b lockage ca u sed b y insects or any other s ub stance. Clean
as req u ired.
Electric Components Check to see there is no physical damage on any of the electric components
and
v erify all electrical connections are sec u re. Ens u re eq u ipment is properly
gro u nded.
Temperature Sensors Cali b rate room, o u tdoor air, and discharge air sensors as req u ired.
An ann u al inspection of the bu rner and components m u st b e made to ins u re
proper and safe operation. For the most part, the bu rner is self cleaning.
Ho w e v er, if the application is extremely dirty or d u sty, it may b ecome neces-
sary to periodically clean the bu rner. Refer to the bu rner man u fact u rer's litera-
t u re for g u idance.
Filters sho u ld b e checked for dirt restriction on a monthly b asis (or as
req u ired). Replace filters w ith filters of eq u al specification w hen they appear
dirty.
Gain access to the fan(s) and motor(s) b y remo v ing the inlet plen u m access
panel. First, release tension on the b elts b y adj u sting the motor b ase closer to
the b lo w er p u lley. Remo v e the b elts.
To remo v e the motor p u lley, first loosen the adj u stment set scre w s and co u nt
the n u m b er of t u rns to f u lly close the p u lley (this n u m b er w ill b e req u ired to re-
install the p u lleys to the pre v io u s adj u stment). Open the adj u sta b le shea v es
to gain access to the shaft set scre w s. Loosen the set scre w (s) that hold it to
the motor shaft and p u ll a w ay from the motor.
To remo v e the b lo w er p u lley, remo v e the b olts from the bu shing and insert into
the pre v io u sly u n u sed threaded holes of the bu shing. Caref u lly press the
b lo w er p u lley off the bu shing, tightening the b olts e v enly. Loosen the Allen
Head setscre w (located on top of the key w ay) and slide the p u lley bu shing off
the shaft.
To remo v e the motor, first remo v e the motor p u lley as descri b ed a b o v e. Dis-
connect the motor po w er w iring and cond u it at the j u nction b ox in the side of
the motor. S u pport the motor so that it w ill b e sec u re w hen disconnected from
the adj u sta b le b ase. Remo v e the b olts that hold the motor to the adj u sta b le
b ase. The motor may no w b e remo v ed.