2
GEO16-501.4
SPECIAL PRECAUTIONS
SPECIAL PRECAUTIONS
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE
SAFE, EFFICIENT, AND TROUBLE-FREE OPERATION. IN
ADDITION, PARTICULAR CARE MUST BE EXERCISED
REGARDING THE SPECIAL PRECAUTIONS LISTED BELOW.
FAILURE TO PROPERLY ADDRESS THESE CRITICAL
AREAS COULD RESULT IN PROPERTY DAMAGE OR LOSS,
PERSONAL INJURY, OR DEATH. THESE INSTRUCTIONS
ARE SUBJECT TO ANY MORE RESTRICTIVE LOCAL OR
NATIONAL CODES.
HAZARD INTENSITY LEVELS
1.
DANGER:
Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious injury.
2.
WARNING:
Indicates a potentially hazardous situation which,
if not avoided, COULD result in death or serious injury.
3.
CAUTION:
Indicates a potentially hazardous situation which,
if not avoided, MAY result in minor or moderate injury.
4.
IMPORTANT:
Indicates a situation which, if not avoided, MAY
result in a potential safety concern.
CAUTION
1. Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% less than the rated voltage.
2. Do not use these units to heat or cool the building
during construction. Mechanical components can quickly
become clogged with debris. System damage may result.
3. Do not overcharge the refrigeration system. This can lead
to elevated compressor discharge pressure and possibly
flooding the compressor with liquid.
4. Do not attempt to reuse any mechanical or electrical
component which has been wet. Such component must
be replaced.
IMPORTANT
1. Start-up and adjustment procedures must be performed
by a qualified service agency.
2. All refrigeration checks must be made by a qualified
R-410A refrigeration technician.
3. Do not release refrigerant to the atmosphere. When
adding or removing refrigerant, all national, state/
province, and local laws must be followed.
4. The ground heat exchanger (open or closed loop or water
source to be connected to the unit must be designed,
constructed, and prepared in accordance with industry
guidelines (IGSHPA, ASHRAE, NGWA, etc.) and best
practices, and any more restrictive local codes and
regulations by a qualified service agency. Failure to
properly, size, install, or prepare the source could result in
reduced performance, a reduction in the normal life of the
units, and a hazard to persons and property.
5. Units selected for open loop ground source applications
should have a cupronickel source coaxial heat exchanger
to reduce mineral buildup and scaling. Open loop systems
should have the source coaxial coil flushed periodically to
maintain peak performance.
6. All piping and connections must be made in accordance
with local plumbing codes.
7. To check most of the Possible Remedies in the
troubleshooting guide listed in Tables 22.1-24.1, refer to
the applicable sections of the manual.
WARNING
1. Disconnect power supply before making wiring
connections to prevent electrical shock and equipment
damage.
2. All appliances must be wired strictly in accordance with
the wiring diagram furnished with the appliance. Any
wiring different from the wiring diagram could result in a
hazard to persons and property.
3. Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature
rating of at least 105°C.
4. Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not 5% greater than rated
voltage.
5. This unit contains R-410A high pressure refrigerant.
Hazards exist that could result in personal injury or
death. Installation, maintenance, and service must only
be performed by an HVAC technician qualified in R-410A
refrigerant and using proper tools and equipment. Due
to much higher pressure of R-410A refrigerant, DO NOT
USE service equipment or tools designed for refrigerants
other than R-410A.
6. When servicing or repairing this equipment, use only
factory-approved service replacement parts. A complete
replacement parts list may be obtained by contacting
Modine Manufacturing Company. Refer to the rating plate
on the appliance for complete appliance model number,
serial number, and company address. Any substitution of
parts or controls not approved by the factory will be at the
owner’s risk.
Table of Contents
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Inspection on Arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Model/Serial Number Designations . . . . . . . . . . . . . . . . . . . . . .3
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Unit Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
SI (Metric) Conversion Factors. . . . . . . . . . . . . . . . . . . . . . . .5
Water Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Start-Up Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Serial Plate – Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Start Up/Troubleshooting Form . . . . . . . . . . . . . . . . . . . . . . . .25
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back Page
DANGER
1. Appliances must not be installed where they may be exposed
to potentially explosive or flammable atmosphere.
2. Water temperatures over 125°F can cause severe burns
instantly resulting in severe injury or death. Feel water before
showering or bathing. Ensure that the primary water heating
source setpoints are higher than the heat pump water
discharge temperature of 120°F.
