About The Product; Combination Of Heat Source Units - Mitsubishi Electric CITY MULTI PQHY-P YLM-A Series Installation Manual

2. About the product

• This unit uses R410A-type refrigerant.
• Piping for systems using R410A may be different from that for systems using
conventional refrigerant because the design pressure for R410A systems is
higher. Refer to the Data Book for more information.
• Some of the tools and equipment used for installing with systems that use
other types of refrigerant cannot be used with the systems using R410A.
Refer to the Data Book for more information.

3. Combination of heat source units

PQHY module are listed below.
Model name
PQHY-P200YLM-A
PQHY-P250YLM-A
PQHY-P300YLM-A
PQHY-P350YLM-A
PQHY-P400YLM-A
PQHY-P400YSLM-A PQHY-P200YLM-A
PQHY-P450YLM-A
PQHY-P450YSLM-A PQHY-P250YLM-A
PQHY-P500YLM-A
PQHY-P500YSLM-A PQHY-P250YLM-A
PQHY-P550YLM-A
PQHY-P550YSLM-A PQHY-P300YLM-A
PQHY-P600YLM-A
PQHY-P600YSLM-A PQHY-P300YLM-A
PQHY-P700YSLM-A PQHY-P350YLM-A
PQHY-P750YSLM-A PQHY-P400YLM-A
PQHY-P800YSLM-A PQHY-P400YLM-A
PQHY-P850YSLM-A PQHY-P450YLM-A
PQHY-P900YSLM-A PQHY-P450YLM-A
20
module
- -
- -
- -
- -
- -
PQHY-P200YLM-A
- -
PQHY-P200YLM-A
- -
PQHY-P250YLM-A
- -
PQHY-P250YLM-A
- -
PQHY-P300YLM-A
PQHY-P350YLM-A
PQHY-P350YLM-A
PQHY-P400YLM-A
PQHY-P400YLM-A
PQHY-P450YLM-A
• Do not use the existing piping, as it contains chlorine, which is found in
conventional refrigerating machine oil and refrigerant. This chlorine will
deteriorate the refrigerant machine oil in the new equipment. The existing
piping must not be used as the design pressure for R410A systems is higher
than that in the systems using other types of refrigerant and the existing
pipes may burst.
PQRY module are listed below.
Model name
PQRY-P200YLM-A
PQRY-P250YLM-A
PQRY-P300YLM-A
PQRY-P350YLM-A
PQRY-P400YLM-A
PQRY-P400YSLM-A PQRY-P200YLM-A
PQRY-P450YLM-A
PQRY-P450YSLM-A PQRY-P250YLM-A
PQRY-P500YLM-A
PQRY-P500YSLM-A PQRY-P250YLM-A
PQRY-P550YLM-A
PQRY-P550YSLM-A PQRY-P300YLM-A
PQRY-P600YLM-A
PQRY-P600YSLM-A PQRY-P300YLM-A
PQRY-P700YSLM-A PQRY-P350YLM-A
PQRY-P750YSLM-A PQRY-P400YLM-A
PQRY-P800YSLM-A PQRY-P400YLM-A
PQRY-P850YSLM-A PQRY-P450YLM-A
PQRY-P900YSLM-A PQRY-P450YLM-A
module
- -
- -
- -
- -
- -
PQRY-P200YLM-A
- -
PQRY-P200YLM-A
- -
PQRY-P250YLM-A
- -
PQRY-P250YLM-A
- -
PQRY-P300YLM-A
PQRY-P350YLM-A
PQRY-P350YLM-A
PQRY-P400YLM-A
PQRY-P400YLM-A
PQRY-P450YLM-A