Bryant 541A User Manual
Page 7
Table 5 — Insulation for Vapor Line Exposed to Outdoor Conditions
LENGTH OF EXPOSED
VAPOR LINE*
INSULATION THICKNESS†
ft
in.
10
3
⁄
8
25
1
⁄
2
35
3
⁄
4
50
3
⁄
4
*Recommended vapor line insulation for piping exposed to outdoor conditions to
prevent loss of heating during heating cycle. When vapor line goes through inte-
rior spaces, insulation should be selected to prevent condensation on cooling cycle.
Heating capacity should be reduced 1000 Btuh if over 35 ft of vapor line with
3
⁄
4
in. insulation is exposed to outdoor conditions.
†Closed cell foam insulation with a thermal conductivity of:
0.28 Btu • in/ft
2
• h • °F.
LIQUID LINE
BI-FLOW FILTER DRIER
TXV
REDUCING TEE
INDOOR COIL
B
A
A
UNIT
541A
LIQUID
LINE
SIZE (in.)
PART NO.
QUANTITY
REQUIRED
FIGURE
REFERENCE
120
1
⁄
2
P504-8084S
2
A
5
⁄
8
P504-8165S
1
B
180
1
⁄
2
P504-8084S
2
A
5
⁄
8
P504-8085S
2
A
LEGEND
TXV — Thermostatic Expansion Valve
Fig. 6 — Recommended Filter Driers and Installation Locations
Fig. 7 — Vapor Line Branch Piping Details
LEGEND
TXV — Thermostatic Expansion Valve
—7—