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PART NUMBER:
CPLOWAMB001A00
CPLOWAMB002A00
SMALL PACKAGED PRODUCTS
1-1/2 TO 5 TONS (50/60 HZ)
MOTORMASTER II HEAD PRESSURE CONTROLLER
Installation
Instructions
NOTE:
Read the entire instruction manual before starting the
installation.
SAFETY CONSIDERATIONS
Installation and servicing of this equipment can be hazardous due to
mechanical and electrical components. Only trained and qualified
personnel should install, repair, or service this equipment.
Untrained personnel can perform basic maintenance functions such
as cleaning and replacing air filters. All other operations must be per-
formed by trained service personnel. When working on this equip-
ment, observe precautions in the literature, on tags, and on labels at-
tached to or shipped with the unit and other safety precautions that
may apply.
Follow all safety codes. Installation must be in compliance with local
and national building codes. Wear safety glasses, protective clothing,
and work gloves. Have fire extinguisher available. Read these in-
structions thoroughly and follow all warnings or cautions included
in literature and
attached to the unit. In Canada,
refer to current
editions of the Canadian
electrical code
CSA
22.1
and current
editions of the National Electrical Code (NEC) NFPA 70.
Recognize safety information. This is the safety-alert symbol AN .
When you see this symbol on the unit and in instructions or manuals,
be alert to the potential for personal injury. Understand these signal
words; DANGER,
WARNING,
and CAUTION.
These words
are
used with the safety -alert symbol. DANGER identifies the most seri-
ous hazards which will result in severe personal injury or death.
WARNING signifies hazards which could result in personal injury or
death. CAUTION is used to identify unsafe practices which may re-
sult in minor personal injury or product and property damage. NOTE
isused to highlight suggestions which will result in enhanced installa-
tion, reliability, or operation.
Follow all safety codes. Wear safety glasses and work gloves. Have
a fire extinguisher available.
4
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury
or death.
Before performing
service or maintenance
operations on
unit, turn off main power switch to unit and install lockout
tag. Ensure electrical service to rooftop unit agrees with
voltage and amperage listed on the unit rating plate.
INTRODUCTION
These
instructions
cover the installation of the Motormaster
II
Controller head pressure control device. Refer to the Installation
section
for
directions.
Louvered
panels
are
required
for
this
installation; see Item 9 in the Installation section of this document
and Tables 1 and 2 for more information.
Table 1 — Add Louvered Panels to These Units if available. If
Louvered Panel kit is not available for a specific model, Field
Fabricated Wind Baffles are recommended.
48ES-—A
574D--A
PGD3
PY3G
WPG3
50ES-—A
704D-—-A
PAD3
PA3G
WPAS
48EZ—A
674D--A
PDD3
-
-
50EZ—A
604D-—-A
PHD3
PH3G
WPH3
-
-
PAD4
-
-
-
-
PGD4
-
-
-
—
PHD4
-
-
Table 2 - Do NOT Add Louvered Panels to These Units
48VL-A
577C-—-A
-
-
50VL-A
707C—-A
-
-
48VT-A
677C-—-A
50VT-A
607C—-A
50GL-A
50JZ—-A
50ZHB-A
Motormaster® || Controller Interior
c00102
Fig. 1 - Controller Interior
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