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E. TANKLESS HEATER OR COVERPLATE
1. If a tankless coil is used (item 13 or 17), install as
pictured. On water boilers, install in opening in front
section. On steam boilers, install in opening in rear
section. For suggested piping of tankless water
heaters refer to Figures 3.6 and 3.7.
2. If not using a tankless coil, cover the heater opening
with cover plate (item 12 or 16).
3. See Table 3.2 for tankless coil ratings.
PIPING AND CONTROLS
Install anti-scald device in hot water
supply piping. Water temperature
above 125°F can cause severe burns
instantly or death from scalds.
DANGER
X1020R and X1082R coils installed in
EC/ECT-03 & 04 packaged boilers
have internal flow controls installed.
Do not use external flow controls
with these coils.
NOTICE
Be sure rubber gasket is in place
between cover plate or water heater
plate and boiler section.
NOTICE
* Water Heater ratings are based on intermittent demand -40°F to
140°F with 200°F Boiler Water.
Table 3.2: Maximum Tankless Water
Heater Ratings
Heater No.
Capacity*
GPM
Boiler Series
X1020
X1020R
5 Series EC
X1082
X1082R
4 Series ECT
Figure 3.6: Tankless Coil Piping, Water Boiler
Figure 3.7: Tankless Coil Piping, Steam Boiler