York HMCG2 Series Technical Manual page 11

5. After weighing in the charge adders for the matched indoor unit and lineset, verify the
system operation against the temperatures and pressures in the charging chart for the
outdoor unit. Locate the charging charts on the outdoor unit and also in the Service Data
Application Guide on www.simplygettingthejobdone.com. Follow the charging procedure in
the Installation Manual according to the type of indoor metering device in the system, and
allow 10 min after each charge adjustment for the system operation to stabilize. Record the
charge adjustment made to match the charging chart.
6. For downflow installations and horizontal right installations, some indoor units require
additional charging adjustments to ensure correct equipment operation. Refer to the
Installation Manual for the outdoor unit.
7. Permanently stamp the unit nameplate with the total system charge, which is defined as
follows: total system charge = base charge (as shipped) + charge adder for matched indoor
unit + charge adder for actual lineset length + charge adjustments to match the charging
chart.
YORK Technical Guide: HMCG2 Series - 16 SEER2 Horizontal Discharge Modulating Air Conditioner
Johnson Controls Ducted Systems
11