Trane RTAF HE Series, Installation Operation & Maintenance

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RLC-SVX19A-E4 32
Evaporator Waterside
Evaporator Glycol Requirement
Standard tubes: Without Turbulator
Table 8 – Leaving water temperature cutout & glycol mass percent recommended for RTAF chillers with Standard
tubes
Table 9 – Leaving water temperature cutout & glycol mass percent recommended for RTAF chillers with Standard
tubes
Ethylene Glycol
Unit type SE Units HE/XE/HSE Units
dT
evaporator
coolant (K)
2 3 4 5 6 7 8 2 3 4 5 6 7 8
LWT
(°C)
LWTC
(°C)
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
%wt
Glycol
4 1.2 - 4 4 4 4 4 5 13 4 4 4 4 4 5
2 -0.8 - 8 8 9 10 12 - 18 8 8 9 10 12 -
0 -2.8 13 13 13 15 19 - - 22 13 13 15 19 - -
-2 -4.8 18 18 19 - - - - 24 18 19 - - - -
-4 -6.8 22 22 - - - - - 25 22 - - - - -
-5 -7.8 24 25 - - - - - 27 25 - - - - -
-6 -8.8 25 29 - - - - - 29 29 - - - - -
-7 -9.8 27 - - - - - - 31 - - - - - -
-8 -10.8 29 - - - - - - - - - - - - -
-9 -11.8 31 - - - - - - - - - - - - -
-10 -12.8 - - - - - - - - - - - - - -
-11 -13.8 - - - - - - - - - - - - - -
-12 -14.8 - - - - - - - - - - - - - -
Monopropylene Glycol
Unit type RTAF Units
dT
evaporator
coolant (K)
2 3 4 5 6 7 8
LWT (°C) LWTC (°C) %wt Glycol %wt Glycol %wt Glycol %wt Glycol %wt Glycol %wt Glycol %wt Glycol
4 1.2 - 4 4 4 4 5 -
2 -0.8 10 9 10 12 - - -
0 -2.8 15 16 21 - - - -
-2 -4.8 20 - - - - - -
-4 -6.8 27 - - - - - -
-5 -7.8 - - - - - - -
-6 -8.8 - - - - - - -
-7 -9.8 - - - - - - -
-8 -10.8 - - - - - - -