Johnson Controls YVAHP072B31S, Service Manual

Page: 895 / 1796

Signal Words
Indicates a hazardous situation that, if not avoided, could result in death or serious injury.
Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
Indicates information considered important, but not hazard-related (for example,
messages relating to property damage).
General Precautions
To reduce the risk of serious injury or death, read these instructions thoroughly and
follow all warnings or cautions included in all manuals that accompanied the product
and are attached to the unit.
Refer back to these safety instructions as needed.
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according to local, state and national building and safety codes and regulations. Incorrect installation could
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the appropriate measures should be taken during installation to guard against possible damage or injury that
might occur in an earthquake if the unit is not installed correctly, injuries may occur due to a falling unit.
Ɣ Use appropriate Personal Protective Equipment (PPE), such as gloves and protective goggles and, where
appropriate, have a gas mask nearby. Also use electrical protection equipment and tools suited for electrical
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handling, rigging, and setting of bulky equipment.
Ɣ When transporting, be careful when picking up, moving and mounting these units. Although the unit may
be packed using plastic straps, do not use them for transporting the unit from one location to another. Do
not stand on or put any material on the unit. Get a partner to help, and bend with your knees when lifting to
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protective gloves.
Ɣ Do not touch or adjust any safety devices inside the indoor or outdoor units. All safety features,
disengagement, and interlocks must be in place and functioning correctly before the equipment is put into
operation. If these devices are improperly adjusted or tampered with in any way, a serious accident can occur.
Never bypass or jump-out any safety device or switch.
Ɣ Johnson Controls will not assume any liability for injuries or damage caused by not following steps outlined or
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ƕ May create hazards which could result in death, serious injury or equipment damage;
ƕ Will void product warranties;
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ƕ May violate OSHA standards;
Take the following precautions to reduce the risk of property damage.
Ɣ Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during
installation work. Foreign matter could damage internal components or cause blockages.
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not installed, dust may accumulate and breakdown may result.
Ɣ Do not install this unit in any place where silicon gases can coalesce. If the silicon gas molecules attach
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of the electrical box, possibly causing electrical failures.
Ɣ When installing the unit in a hospital or other facility where electromagnetic waves are generated
from nearby medical and/or electronic devices, be prepared for noise and electronic interference
Electromagnetic Interference (EMI). Do not install where the waves can directly radiate into the
electrical box, controller cable, or controller. Inverters, appliances, high-frequency medical equipment,
and radio communications equipment may cause the unit to malfunction. The operation of the unit may
also adversely affect these same devices. Install the unit at least 10 ft. (approximately 3m) away from
such devices.
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INSTALLATION