Trane RTHC - Thermal Insulation; Pressure Relief Valve Data

Installation, Operation and Maintenance 2 - 27
.
* Only used with isolation valve option
Thermal Insulation
All RTHC units are available with optional factory
installed thermal insulation. If the unit is not factory
insulated, install insulation over the areas shaded in
Figure 18 . Refer to Table 13 for types and quantities
of insulation required.
NOTES: Liquid line filter, refrigerant charging valves,
water temperature sensors, drain and vent
connections when insulated must remain accessible
for service.
Use only water-base latex paint on factory-applied
insulation. Failure to do so may result in insulation
shrinkage.
More (thicker insulation may be required in areas
with high humidity.
Table 12
Pressure Relief Valve Data
Valve Location
Number of
Valves
Rated
Capacity
per Relief
Valve
(lba/min)
Pipe Size
(in NPT)
Evap - B1
1 43.5 1
Evap - B2
1 43.5 1
Evap -B3
1 43.5 1
Evap -C1
1 43.5 1
Evap - C2
1 43.5 1
Evap - D1
1 43.5 1
Evap - D2
1 43.5 1
Evap - D3
1 43.5 1
Evap - F1
1 43.5 1
Evap - F2
1 43.5 1
Evap - E1
1 43.5 1
Evap - G1
1 76.2 1-1/4
Evap - G2
1 76.2 1-1/4
Evap - G3
1 76.2 1-1/4
Cond - B1
1 43.5 1
Cond - B2
1 43.5 1
Evap - C1
1 43.5 1
Evap - C2
1 43.5 1
Cond - D1
1 43.5 1
Cond - D2
1 43.5 1
Cond - E1
2 43.5 1
Cond - E2
2 43.5 1
Cond - E3
1 43.5 1
Cond - F1
1 43.5 1
Cond - F2
2 43.5 1
Cond - F3
2 43.5 1
Cond - G1
1 43.5 1
Cond - G2
2 43.5 1
Cond - G3
2 43.5 1
Comp - B1/B2*
2 76.2 1-1/4
Comp - C1/C2*
3 76.2 1-1/4
Comp - D1/D2/D3*
3 76.2 1-1/4
Comp -E3
3 76.2 1-1/4