AERCO CXT-E Retrofit Kit - Manual (Page 48)

ECS and CXT-E Retrofit Instructions Kit # 27004-TAB
Technical Instruction Document TID-0141_0A
12/30/2014 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 48 of 76
4.5 COMPOUND PRESSURE GAUGE
NOTE
Section 4.5 applies ONLY to Steam-to-Water Heater Models which
include A-Plus, B-Plus, B-Plus II Helitherm Models. For ALL Water-to-
Water Heater Models disregard the procedures in this section and
proceed directly to section 4.6.
If the Water Heater being retrofitted is Steam-to-Water Model, a Compound Pressure Gauge is
included in the Retrofit Kit. The Compound Pressure Gauge range will be sized to match the
requirements of the Heater being retrofitted. In addition to the Gauge, all required fittings
necessary for installation will be included in the kit.
The Compound Pressure Gauge will be mounted downstream of the CXT-E Control Valve, as
shown in Figure 4-11.
-E
-
CXT-E
ACTUATOR
LINKAGE
ASSY
CONTROL
VALVE
STEAM IN
SIDE VIEW
COMPOUND PRESSURE GAUGE
(SHOWN ROTATED FOR CLARITY)
PIG TAIL
1/4" COUPLING
SHELL
Figure 4-11. Compound Pressure Gauge Installation – Helitherm S/W Unit