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Final Charge
It is critical to control the conditions under which the compressor unit operates while final charging the
system. Final charging must be done in HEAT mode.
For this SD(H) Model, final charging should be done using the AIR
HANDLER in HEAT MODE.
Air Handler Systems
The return air to the air handler during final charging is to be maintained in the range of 70°F
to 80°F. If necessary, the air can be warmed with electric supplemental heat in the air handler.
(Shunt "R" to "W2" at the terminal block.)
Hydronic Systems
If heating is provided through a hydronic water module, HWM, the circulating water is to be
maintained in the 95°F to 105°F range.
The final charging procedure is as follows, with the final charging set up described in Figure 28.
SD-410-QS (H) (06/15)
IMPORTANT!
Figure 28. Final Charge of SD(H) System
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