Carrier 30RC70004101 Installation Instructions Manual

Part No: 30RC70004101, 30RC70006401, 30MP70000201, 30MP70000401
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Configuration (All Unit Sizes) . . . . . . . . . . . . . . . . . . 7
Temperature Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• SPACE TEMPERATURE
Demand Limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
• 4 TO 20 MA SIGNAL
• SWITCH CONTROLLED
Ice Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Dual Chiller Leaving Water Temperature (LWT) . . . 7
Cooling Setpoint (4 to 20 mA) . . . . . . . . . . . . . . . . . . 7
Ventilation Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to system
pressures, electrical components, and equipment location (such as
a roof or elevated structure). Only trained, qualified installers and
service technicians should install, start-up, and service this
equipment.
When installing this accessory, observe precautions in the
literature, labels attached to the equipment, and any other safety
precautions that apply:
• Follow all safety codes
• Wear safety glasses and work gloves
• Use care in handling and installing this accessory
It is important to recognize safety information. This is the safety-
alert symbol: . When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal words DANGER, WARNING, CAUTION,
and NOTE. These words are used with the safety-alert symbol.
DANGER identifies the most serious 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 result in minor personal
injury or product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation, reliability,
or operation.
WARNING
This product can expose you to chemicals including lead and
lead components, which are known to the State of California
to cause cancer and birth defects or other reproductive harm.
For more information, go to www.P65Warnings.ca.gov.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53300278-01
Installation Instructions
Printed in U.S.A. Form No. 30-5ASI
Energy Management Module Accessory
Page
Electrical shock can cause personal injury and death. Shut off
all power to this equipment during installation and service.
There may be more than one disconnect switch. Tag all
disconnect locations to alert others not to restore power until
work is completed.
The standard Carrier Controller software provided on all 30RC/
30MP chillers and 38RC condensing units are programmed to ac-
cept various options to modify the unit operation. The Energy
Management Module (EMM) board is required for 4 to 20 mA,
2 or 3-step demand limit control, chilled water temperature reset
by space temperature, Ice Mode, LWT (leaving water tempera-
ture) for Primary/Secondary chiller control, and Ventilation fan
output (30MP only). Chilled water temperature reset by return wa-
ter or cooler (delta T does not require the addition of this accesso-
ry). See Table 1 for EMM functions. The following functions are
available with the EMM board:
• Chilled Water Temperature Reset — Resets the chilled wa-
ter set point under less than full load capacity conditions
by the following method:
- Space Temperature: A field-supplied space temperature
sensor is required.
• Demand Limit — Limits the capacity of the machine from
unit capacity by the following methods:
- 4 to 20 mA Input: A field-supplied signal generator is
required.
- 2 or 3-Step Switch Control: A field-supplied dry contact
switch is required.
• Ice Done Control Switch — Signals the machine to exit
the Ice Build mode and enter an unoccupied time period. A
field-supplied dry contact switch is required.
• Dual Chiller LWT — Sensor input to allow for control of
two chillers by the primary/secondary chiller logic.
• Cooling Setpoint — 4-20 mA input for controlling LWT
setpoint.
• Ventilation Fan Output — Activates ventilation fan for in-
door units (30MP units only).
The EMM board can be configured with the Carrier Controller
module. See "EMM Board Wiring" on page 3. for detailed
configurations.
30RC 010-060,
30MP 017-080,
38RC 020-060
WARNING
GENERAL
Pg 1 4-24 Replaces: NEW