Crown Boiler 32 User Manual
Page 45
45
43
8)
Multiple Tankless Heaters - If two tankless heaters are installed in the boiler, it is recommended that each heater be
installed in parallel with its own mixing valve, relief valve, flow restrictor, etc.. This will permit either heater to be
removed from service for maintenance while still providing some domestic water to the building.
Tankless Heater
Model Num ber
For Use In
Boilers
Continuous Draw
Heater Ratings
40° - 140° Rise
w ith 200°F Boiler
Tem perature
Pressure Drop
Through Heater
(psi)
Minim um
Num ber of
Sections
Required Per
Heater
Clearance
Requirem ent
For Heater
Rem oval
T-1
All Sizes
4.5 GPM
8.8
5
27"
T-2
All Sizes
5.0 GPM
18.0
6
32"
T-3
32-665 & Larger
6.0 GPM
1.2
8
42"
All Series 32 boilers are furnished w ith left and right heater end sections. It is possible to install a heater in both ends
provided the number of sections in the boiler in not less than the sum of the number of sections required for each
heater as indicated in the table. Example: T2 + T3 = 6 + 8 = 14 section or larger boiler.
Table 9: Tankless Heater Specifications
Figure 32: Tankless Heater Piping