19
FIGURE 5-8B Multiple Boilers Using Primary/Secondary Pumping with Closed External Primary Loop
5 - HYDRONIC PIPING
Heating Load
Heating Load
Heating Load
Existing closely spaced tees
in primary system loop
12"/305mm
Maximum
Separation
Up to 16
boilers
3/8"/10mm Open End
Wrench
CH/System
Pump
12"/305mm Maximum Separation
System
Temperature
Sensor
Size common piping
per maximum heat
capacity of entire
system
All internal
primary loop
ball valves
closed
Limit
length to
5' (1.6m)
Summary of Contents for Olsen OLSSC-050
Page 47: ...47 13 TROUBLE SHOOTING...
Page 51: ...51 13 TROUBLE SHOOTING...
Page 53: ...53 13 TROUBLE SHOOTING...
Page 62: ...62 Supply Water Temperature Sensor Resistance Chart 13 TROUBLE SHOOTING...
Page 84: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com...