Graco 309524L Manual De Usuario

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Installation
309524L
7
I
Selecting Tubing
Fluid loses some heat through the tubing or hose 
between the heater and spray gun. Locate heater close 
to the spray area to minimize heat loss through plumb-
ing.
The chart in F
IG
. 2 shows a heat loss curve for 3 com-
mon types of tubing. 
WARNING
Read warnings, pages 4-5.
Select system components that meet temper-
ature and pressure ratings listed in Technical 
Data
, page 28. The heater’s normal output 
range is adjustable from 84-220°F 
(29-104°C).
Locate heater away from all flammable mate-
rials and where operators will not come in 
contact with hot metal surfaces.
Insulate and/or label lines and components 
exiting heater that may become hot.
Chart Notes:
The greater the flow rate, the less the heat 
loss.
Foam-insulated steel tubing and high pres-
sure airless paint hose retain heat best. Insu-
lated tubing and hose are more expensive, 
but higher costs are commonly offset by lower 
operating costs.
Locate heater close to spray area to minimize 
heat loss through plumbing.
F
IG
. 2: Typical Temperature Drop
0
1
2
3
4
5
6
0
0.5
1
1.5
2
2.5
3
LPM
(GPM )
o
C
(
o
F)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(0.1)
(0.2)
(0.3)
(0.4)
(0.5)
(0.6)
(0.7)
(0.8)
Heat Loss Curve - 70° F (21° C) ambient
T
y
pic
a
l Flu
id T
e
mp
erature D
rop
Flow Rate
(20 ft.) 6.1 m steel tube
Fluid: (130° F) 54° C
(20 ft.) 6.1 m steel tube
(3/8 in.) 9 mm foam insulation
Fluid: (110° F) 43° C
(20 ft.) 6.1 m airless paint hose
Fluid: (110° F) 43° C