Due To Our Policy Of Continuous Product Innovation, Some Specifications May Change Without Notification - LG ARUM072BTE5 Installation Manual

INSTALLING FOR HEAT RECOVERY
OPERATION
Sample Layouts
Sample Layouts, Continued.
Outdoor Unit
Y-Branch
Heat Recovery Unit
Indoor Unit Indoor Unit Indoor Unit Indoor Unit
Keep the sum of total Indoor Unit capacity under 192,000 Btu/h.
Zone Control
For zone control, up to eight (8) indoor units with a maximum capacity of 54,000 Btu/h can be connected to one port on the heat recovery
unit. Y-Branches or Headers can be used, depending on what is best for the application.
Outdoor Unit
Heat Recovery Unit 1
Zone Control Group 1
Indoor Unit Y-Branches
Maximum eight (8) Indoor Units
Same Mode
• One heat recovery unit branch pipe can support a maximum of 54,000 Btu/h total indoor unit cooling capacity.
• PRHR041A heat recovery unit can support a maximum of 192,000 Btu/h total capacity and up to 32 connected indoor units (maximum
indoor units per heat recovery unit branch pipe is 8).
• Zone control groups cannot operate in "Auto changeover" or "Mode override" functions.
• In the zone control group, if some indoor units are operating in cooling or heating mode, the other indoor units cannot change over to /
operate in the opposite mode.
Images are for illustrative purposes only and are not accurate representations. For specific details on piping limitations and other refrigerant system
rules, review the information in this entire piping section, see the Multi V 5 Engineering Manual, and follow the LATS diagram.
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Heat Recovery Unit
Heat Recovery Unit
Heat Recovery Unit
Indoor Unit
Indoor Unit
Keep the sum of total Indoor Unit capacity under 192,000 Btu/h.
Heat Recovery Unit
Indoor Unit Indoor Unit Indoor Unit
Heat Recovery Unit 2
Brazed Cap
Indoor Unit Indoor Unit
Indoor Unit
Auto Changeover

Due to our policy of continuous product innovation, some specifications may change without notification.

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Heat Recovery Unit
Heat Recovery Unit
Indoor Unit Indoor Unit
Indoor Unit
Zone Control Group 2
Maximum eight (8) Indoor Units
Indoor Unit Indoor Unit
Header
Same Mode