Rapid 7500 136, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 16: S
TART
-
UP
P
ROCEDURES
107 of 143
Installation Code and Annual Inspections:
All installation and ser v ice of RAPID
®
eq u ipment
m u st b e performed b y a contractor q u alified in the
installation and ser v ice of eq u ipment sold and
s u pplied b y Rapid Engineering LLC and conform to
all req u irements set forth in the RAPID ® man u als and
all applica b le go v ernmental a u thorities pertaining to
the installation, ser v ice operation and la b eling of the
eq u ipment.
To help facilitate optim u m performance and safety,
Rapid Engineering LLC recommends that a q u alified
contractor cond u ct, at a minim u m, ann u al
inspections of yo u r RAPID ® eq u ipment and perform
ser v ice w here necessary, u sing only replacement
parts sold and s u pplied b y Rapid Engineering LLC.
Check installation site to ens u re all codes and
engineering specifications are correct. This section of
the man
u al is intended to b e u sed as an instr u ctional
g u ide to the commissioning of the indirect fired air
t u rno v er u nit. Fill o u t the attached start u p sheet
(located at the b ack of the man u al) as each step of
the proced u re is performed. This proced u re sho u ld
b e completed b y the commissioning contractor and
ret u rned to Rapid Engineering LLC.
16.1 Mechanical
16.1.1 Sheave Ali g nment
Shea v es are factory aligned. On all air t u rno v er u nits,
check shea v e alignment as follo w s.
1. Attach a string to the v ertical s u rface next to
the b lo w er shaft b earing. ( See Page 107, Figure
85 )
2. Wrap the string aro u nd the fan shea v e and
across b oth shea v e s u rfaces as sho w n.
3. Adj u st u ntil all fo u r contact points (triangle)
to u ch the shea v e s u rfaces. "IN" or "OUT"
adj u stment of the motor shea v e and/or motor
adj u stment may b e req u ired.
4. P u ll the string a w ay from the motor shea v e and
then mo v e it slo w ly b ack to w ards the shea v e,
making s u re the string remains straight w hile
to u ching all contact points.
5. Remo v e string b efore t u rning air t u rno v er u nit
on.
NOTE: Allo w ances m u st b e made for motor shea v es
w hich are w ider than the b lo w er shea v es.
FIGURE 8 5: Sheave Ali g nment
16.1.2 Belt Tension
• Belt tension sho u ld b e checked w ith a b elt-tension
ga u ge w hen one is a v aila b le. Follo w the b elt
tension ga u ge instr u ctions.
• When a tension ga u ge is not a v aila b le, meas u re
the b elt span of the b elts.
• Allo w for 1/64" (.04 cm) of deflection for each inch
of center distance length for the charted po u nds
of force. Check the ta b le b elo w for proper
deflection force.
• EXAMPLE: A 40" (101.6 cm) shaft center
distance w o u ld dictate 40"/64" or 5/8" (1.59
cm) of deflection. With a standard B-type
V-
b elt and a motor shea v e meas u ring
b et w een 5.8" (1.59 cm) and 8.6" (21.84 cm),
the b elt w ill ha v e proper tension if a 5/8"
deflection can b e achie v ed w ith a minim u m of
6-3/8 inch l b s. and a maxim u m of 8-3/4 inch
l b s. of press u re as meas u red w ith a b elt
tensioning ga u ge.
Correct Alignment
Incorrect Alignment