BOOK0795-F
3
SECTION II
INSTALLATION
Before starting the installation, read this section thoroughly. In addition, a through review of the Ratings And
Specifications (Section VII) is recommended. The following installation guidelines should be kept in mind when
installing the controller.
INSTALLATION GUIDELINES
1. CONTROLLER MOUNTING - Controllers rated 1/6 - 3 HP may be mounted either vertically or hori-
zontally. Controllers rated at 5 HP may only be mounted vertically. Never mount the controller upside
down, immediately beside or above heat generating equipment, or directly below water or steam pipes.
The controller must be mounted in a location free of vibration.
Multiple controllers may be mounted side by side, as close to each other as the mounting feet will allow.
However, if a Model 2601 or 2602 Controller enclosure has Cover Hinges (Option 1638), 4 inches (102
mm) clearance must be provided on the hinged side of the enclosure to accommodate the swing of the
cover.
The minimum clearance at the top and bottom of the controller may be as narrow as the conduit fittings
allow.
2. ATMOSPHERE - The atmosphere surrounding the controller must be free of combustible vapors, chem-
ical fumes, oil vapor, and electrically conductive or corrosive materials.
The air surrounding an enclosed controller must not exceed 40 degrees C (104 degrees F), and the air sur-
rounding an open-chassis controller must not exceed 55 degrees C (131 degrees F). Minimum air tempera-
ture is 0 degree C (32 degrees F) for enclosed and open-chassis controllers.
Model 2601 and 2602 Controllers (except 5 HP enclosed models) require a natural convection flow of air
over the pins on the back of the controller to dissipate the heat generated by the controller. Allow 4 inches
(102 mm) clearance on all sides from solid objects which block the flow of air to the pins.
3. CONTROLLER CONSTRUCTION - Series 2600/2610 controller bases are made of die-cast aluminum
with a powdered epoxy finish.
Series 2600/2610 Controller enclosures are totally enclosed, nonventilated, and comply with NEMA Type
4 and 12 standards. There is an oil resistant synthetic rubber gasket between the cover and base. Those
models with integral operator controls include flexible boots to seal the switches, and a seal for the
MOTOR SPEED potentiometer.
Series 2600 enclosure covers are molded of Noryl
, which is not affected by most water-based solutions,
detergents, acids, and bases. However, the cover may be softened by heptane, acetone, and other haloge-
nated and aromatic hydrocarbons, so install Series 2600 Controllers in a location free of these substances.
Series 2610 enclosure covers are made of a die-cast aluminum alloy.
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