User's Manual

Component Identification
3A2954D 7
General Information 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 FIG. 2 shows a heat loss curve for 3 com-
mon types of tubing.
Chart Notes:
• Higher flow rates have less heat loss.
• Foam-insulated steel tubing and high pressure air-
less paint hose retain heat best. Insulated tubing
and hose are more expensive, but higher costs are
commonly offset by lower operating costs.
• Select system components that meet temperature
and pressure ratings listed in Technical Data,
page 27. The heater’s normal output range is
adjustable from 84-220°F (29-104°C).
• To prevent fire and explosion, locate heater away
from all flammable materials and where operators
will not come in contact with hot metal surfaces.
• To avoid burns, insulate and/or label lines and
components exiting heater that may become hot.
FIG. 2: Typical Temperature Drop
0
1
2
3
4
5
6
0 0 .5 1 1 .5 2 2.5 3
(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
Typical Fluid Temperature Drop
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
(°F) °C
LPM
(GPM)