4000-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
148 of 154
SECTION 26: RAPID
®
4000-SERIES START-UP PROCEDURES: EVAPORATIVE COOLER
C
u
stomer: ________________________________
Technician: _______________________________
Start-Up Co: ______________________________
Date: ____________________________________
Model N
u
mber: ____________________________
Serial N
u
mber: ____________________________
Field start-
u
p sho
u
ld be performed by a q
u
alified technician. The technician is responsible for ass
u
ring that
all of the items on this checklist are properly installed and operating. Upon completion, a copy of this form
sho
u
ld be ret
u
rned to Rapid Engineering LLC
u
sing the contact information listed in the header
A. Pipin
g
___ Water s
u
pply piped to proper location on e
v
aporati
v
e cooler.
___ Water s
u
pply line drain solenoid (normally open) installed and piped to a drain inside the b
u
ilding.
___ Fill
v
al
v
e solenoid (normally closed) installed in the
w
ater s
u
pply line inside the b
u
ilding.
___ S
u
mp o
v
ero
w
is piped to a drain.
___ S
u
mp drain is piped and the s
u
mp drain
v
al
v
e is installed.
___ Trap installed in s
u
mp drain pipe per local code.
___ S
u
mp drain ball
v
al
v
e is
w
ired properly.
B. Electrical
___ Electrical connections are made at j
u
nction box on air handler.
___ Water s
u
pply line drain solenoid (normally open) is
w
ired properly.
___ Fill
v
al
v
e solenoid (normally closed) is
w
ired properly.
C. Basic Operation (Control Packa
g
e #1- Items apply to all evaporative coolers.)
___ E
v
ap enable relay (located in main electrical panel) energizes e
v
aporati
v
e cooler. The fill
v
al
v
e energizes
and s
u
mp begins filling.
___ The o
u
tside air freeze stat is set at 45° F.
___ When the o
u
tside air is belo
w
the freeze stat setpoint, the stat opens and the s
u
mp drains.
___ The
w
ater le
v
el is belo
w
the cardboard media s
u
pport. The media sho
u
ld ne
v
er sit in the
w
ater.
Adj
u
stment of the float may be req
u
ired depending on ho
w
le
v
el the air handler
w
as installed.
___ Flo
w
of
w
ater o
v
er the media is adj
u
sted properly. Proper o
w
is achie
v
ed by adj
u
sting (if needed) the
w
ater flo
w
adj
u
stment
v
al
v
e so that the media completely sat
u
rates
w
itho
u
t getting droplets of
w
ater
projecting o media in direction of airflo
w
. It may take
u
p to 2 ho
u
rs for the media to properly sat
u
rate.
Final o
w
adj
u
stments sho
u
ld be made then.
___ Adj
u
sted bleed-o rate to approximately 20% of the e
v
aporation rate. Please refer to the E
v
aporati
v
e
Cooler Maintenance Section of the Installation, Operation and Ser
v
ice Man
u
al for f
u
rther information.
WARNING
Falling Hazard
Use proper safety equipment and practices
to avoid falling.
Do not use any part of equipment as support.
Failure to follow these instructions can result
in death, injury or property damage.
DANGER
Electrical Shock Hazard
Disconnect electric before service.
More than one disconnect switch may be
required to disconnect electric from
equipment
Equipment must be properly grounded.
Failure to follow these instructions can
result in death or electrical shock.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.
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