SECTION 23: D
IRECT
FIRED
PROCESS
AIR
HEATERS
119 of 198
adj
u
sts exha
u
st fans to maintain
b
ooth
press
u
re.
2.Operation - Paint Mode:
• S
w
itch in "S
u
mmer" position for fan only or
"Winter" position for fan and
bu
rner.
• Process Heater discharge damper opens to
100% open position.
• Exha
u
st fan starts and after a timed delay, the
s
u
pply fan comes on.
• In the
w
inter position, temperat
u
re
b
ased on
paint temperat
u
re set point.
• Booth lights operated
b
y on/off s
w
itch.
3.Operation - Dry Mode:
• Acti
v
ate s
w
itch to either "S
u
mmer" or "Winter"
position.
• T
u
rn Dry Cycle Start Timer to desired time
(acti
v
ates the Dry cycle).
• Spray g
u
n solenoid and
b
ooth lights are sh
u
t
off.
• P
u
rge timer is acti
v
ated, p
u
rging
b
ooth
w
ith
100%
v
entilation air (operating as if in paint
mode).
• "Process Heater's discharge damper re-
positions to 50% airflo
w
position, exha
u
st fan
a
u
tomatically adj
u
sts airflo
w
to maintain the
press
u
re setting of the press
u
re controller.
• Temperat
u
re
b
ased on Dry temperat
u
re set
point.
• When Dry cycle is completed, cool-do
w
n cycle
is acti
v
ated. Booth lights remain off.
• D
u
ring cool-do
w
n, Process Heater and the
exha
u
st fan re
v
ert to 100% airflo
w
position
(operating as if in paint mode).
• Process Heater and exha
u
st fan sh
u
t do
w
n
after cool-do
w
n cycle.
FIGURE 104: WRP-4
23.4.6 WRP- 4R Remote Control Station 90/10
Recirculatin
g
Cure System - Auto Balance
1. Description:
•
NEMA1 hinged control panel
•
S
u
mmer-Off-Winter s
w
itch
•
Three (3) system indicating lights; Blo
w
er,
B
u
rner and Flame Fail
u
re
•
Spray g
u
n interlock
•
Dry P
u
rge Timer and Cool-Do
w
n timer
•
Mechanical Dry timer (0-60 min
u
tes)
•
Maxitrol "M" Series temperat
u
re set point
w
ith
digital temperat
u
re indicator
•
Booth Lighting On/Off S
w
itch, f
u
sing and
contactor (s
u
pply po
w
er for lights
b
y others)
•
Booth press
u
re ga
u
ge controller (D
w
yer 4"
Photohelic), monitors and a
u
tomatically adj
u
sts
exha
u
st fans to maintain
b
ooth press
u
re
2.Operation - Paint Mode:
• S
w
itch in "S
u
mmer" position for fan only or
"Winter" position for fan and
bu
rner
• Process Heater's dampers opens to 100%
v
entilation position
• Exha
u
st fan starts and after a timed delay, the
s
u
pply fan comes on
• In the
w
inter position, temperat
u
re
b
ased on
paint temperat
u
re set point
• Booth lights operated
b
y on/off s
w
itch
BOOTH PRESSURE
BUR
N
ER
BLO
W
ER
FLAME FAILURE
SUMMER
OFF
W
I
N
TER
OFF
O
N
LIGHTS
TEMP CO
N
TROLLER
PGM
MAXITROL
ENT
20
5
35
40
25
30
45
50
55
60
HOLD 0
15
10
DRY CYCLE START
PHOTOHELIC
1"
4
1"
Содержание TT Series
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Страница 203: ...SECTION 28 THE WEATHER RITE TT SERIES WARRANTY 197 of 198 ...
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