ClimateMaster Trilogy Q-Mode (QE) Series, Руководство пользователя

Страница: 17 / 92

17
c l i m a t e m a s t e r.c o m
Trilogy
®
Q-Mode
®
(QE) Series IOM - 60Hz HFC-410A
R e v i s e d : D e c e m b e r 2 2 , 2 0 2 1
Flushing the Earth Loop (Cont.)
Figure 15d: Valve Position D - Pressurize and Operation
Loop
Valve Position
1
Dead Head
Pump to
Pressurize
to 50 PSI
2
Close to isolate
Internal Flow Controller
3
Close Internal
Flow Controller
Valves for
Operation Mode
Out
In
Flush P
or
t
Front of Unit
Valve Position
pressurizing, close the flush cart supply valve to isolate the
flush cart. Move the Flow Controller valves to Position D.
Loop static pressure will fluctuate with the seasons and
pressures will be higher in the winter months than during
the cooling season. This fluctuation is normal and should
be considered when charging the system initially. Unhook
the flush cart from the Internal Flow Controller. Install Flow
Controller caps to ensure that any condensation/leakage
remains contained within the Flow Controller package.
If the loop pressure is between 50 and 75 psi [345 to 517
kPa] upon completion of flushing, pressures should be
sufficient for all seasons.
NOTICE : It is recommended to run the unit in the heating,
then cooling mode for 15-20 minutes each to ‘temper’ the
fluid temperature and prepare it for pressurization. This
procedure helps prevent the periodic “flat” loop condition of
no pressure.