Dunkirk DKVLT-050, Installation, Operation & Maintenance Manual

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17
Heating Load Heating Load
Heating Load
CH/System
Pump
12"(305mm) Maximum
separation
12"(305mm)
Maximum
separation
Existing closely spaced tees
in primary system loop
Heating Load Heating Load
Heating Load
FIGURE 5-7A Single Boiler Using Primary/Secondary Pumping With Closed External Primary Loop
Heating system
with existing
primary loop.
Internal primary
loop ball valves
closed
3/8"/10mm
Open End Wrench
FIGURE 5-7B Single Boiler Using Primary/Secondary Pumping With Open External Primary Loop
CH/System
Pump
12"(305mm) Maximum
separation
Existing closely spaced tees
in primary system loop
Limit length
to
5' (1.6m)
12"(305mm)
Maximum
separation
Limit length
to
5' (1.6m)
Internal primary loop
ball valves open.
Heating system
without existing
primary loop.
3/8"/10mm
Open End Wrench
5 - HYDRONIC PIPING