Armstrong FLO-RITE-TEMP - Single Wall Heat Exchanger

15
October 31, 2002 @ 3:15 pm
Single Wall Heat Exchanger - To remove the tube bundle for cleaning. Simply unbolt the mixing valve
from the shell and move it out of the way. The tube bundle can be pulled out from the valve end (see Table
12-1 for clearance dimensions). Once the tube bundle is out of the shell, unbolt the end cap on the floating
head end and remove to provide straight through cleaning. Reassemble in the reverse order (On the Model
665 dual stem unit when reassembling the tube bundle, make sure that the "TOP" indicator stamped on the
cover and both ends of the tube bundle line up and bundle is reinstalled in the shell with both "TOP" indicators
facing up). New gaskets will be required for this procedure. (Order heat exchanger gasket kit for model
number)
Fig. 15-1
NOTE: NOTE:
NOTE: NOTE:
NOTE: Depending on capacity requirements a parallel water heater installation may also require (2) two PRVs in
parallel.
Single wall installation shown - Double wall would be similar. See your Armstrong Representative forSingle wall installation shown - Double wall would be similar. See your Armstrong Representative for
Single wall installation shown - Double wall would be similar. See your Armstrong Representative forSingle wall installation shown - Double wall would be similar. See your Armstrong Representative for
Single wall installation shown - Double wall would be similar. See your Armstrong Representative for
proper reducing valve application.proper reducing valve application.
proper reducing valve application.proper reducing valve application.
proper reducing valve application.
Steam In
Heated
Water
Bypass to
Drain for
Setting
Thermal
Loops
Armstrong
Pressure Reducing Valve
(If Req'd.)
GP-2000
2-15 Psig Steam
in The Shell
Steam Pressure
Gauge
Safety Relief
Valve
Steam
Pressure
Gauge
Armstrong
Trap
Thermostatic
Air Vent
Thermal
Loops
Armstrong
Trap
Armstrong
Trap
Vacuum
Breaker
Setting
Thermometer
Bypass
to Drain
for Setting
Supply Water
System
Isolation
Valve
System Isolation
Valve
I.B.
I.B.
I.B.
I.B.
2-15 Psig Steam
in The Shell
Setting
Thermometer