PB EC Series - Tankless Heater or Coverplate

14
E. TANKLESS HEATER OR COVERPLATE
1. If a tankless coil is used (item 18 or 22), 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 3.8 and 3.9.
2. If not using a tankless coil, cover the heater opening
with cover plate (item 17 or 21).
3. See Table 3.2 for tankless coil ratings.
PIPING & CONTROLS
* 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
Boiler Type Heater No.
Capacity*
GPM
Water (EC)(-e) X1020 5
Steam (ECT)(-e) X1082 4
Figure 3.8: Tankless Coil Piping, Water Boiler Figure 3.9: Tankless Coil Piping, Steam Boiler
12" MIN.
3/4" CONTROL
TAPPING
TANKLESS
HEATER
HIGH TEMPERATURE
HOT WATER
MIXED
WATER
WATER
MIXER
COLD WATER INLET
FLOW CONTROL
12" MIN.
3/4"
CONTROL
TAPPING
TANKLESS
HEATER
HIGH TEMPERATURE
HOT WATER
WATER
MIXER
COLD WATER INLET
FLOW CONTROL
MIXED
WATER
Install anti-scald device in hot water supply piping.
Water temperature above 125°F can cause severe
burns instantly or death from scalds.
DANGER
Be sure rubber gasket is in place between cover
plate or water heater plate and boiler section.
NOTICE