Roberts Gorden CorayVac Classic SF Series, Руководство по эксплуатации и обслуживанию

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CRVSF-S
ERIES
I
NSTALLATION
, O
PERATION AND
S
ERVICE
M
ANUAL
36 of 83
SECTION 11: OUTSIDE AIR SUPPLY
The CRVSF-Series system must use an outside
air system.
Halogenated hydrocarbons or other corrosi v e
chemicals in the air can be dra w n into the eq u ipment
and serio u sly damage the system components.
A v oid the u se of s u ch chemical compo u nds near the
air inlet to the heaters.
All joints and seams in the air s
u pply system m u st be
airtight. Attach the filter ho u sing to the b u rner
assembly u sing the w ing n u t pro v ided.
To pre v ent condensation, ins u late the o u tside air
d u ct.
11.1 Pressurized
See Page 39, Figure 24 for a typical layo u t of a
press u rized air s u pply system.
For press u rized o u tside air s u pplies, the o u tside air
blo w er motor has a press u re s w itch that m u st be
u sed. Wire this s w itch in series w ith the p u mp
press u re s w itch. When u sing an o u tside air blo w er
w ith a ROBERTS GORDON ® System Control or
ROBERTS GORDON ® ULTRAVAC ™ control or relay
transformer, a separate load relay package is
req
u ired. Wire the control for the relay in parallel w ith
the p u mp. The o u tside air blo w er m u st ha v e a
separate 20 A, 120 V po w er s u pply. See Page 37,
Figure 21 for o u tside air blo w er internal w iring
req u irements. The o u tside air blo w er has an
adj u stable internal damper that sho u ld be w ide open.
On smaller systems (abo u t 3 b u rners) this damper
might need to be closed u p to half w ay if the press u re
s w itch does not make.
11.2 Non-Pressurized
For a non-press u rized o u tside air s u pply, a 4" (O.D.)
single w all pipe d u ct may be attached to the b u rner
and end v ent v ia flexible d u ct as system w ill expand
and contract. For length and d u ct sizing
req u irements, see d u ct design r u les in Figure 20 . To
pre v ent condensation, ins u late the o u tside air d u ct.
CAUTION
Product Damage Hazard
Do not use heater in area containing
corrosive chemicals.
Refer to appropriate Material Safety Data
Sheets (MSDS).
Failure to follow these instructions can result
in product damage.