Lifting Provisions; Supply And Return Piping - Watts AERCO CFR 3000 Installation And Start-Up Manual

SECTION 2: INSTALLATION

2.4 Lifting Provisions

To avoid damaging the unit do NOT lift or move the boiler using the gas train or blower.
Three lifting lugs are provided at the top of the primary heat exchanger as shown in Figure 2-4. Remove
the front top panel from the unit to provide access to the lifting lugs. Remove the four (4) lag screws
securing the unit to the shipping skid. Lift the unit off the shipping skid and position it on the 4-inch to 8-
inch (10.2 cm to 20.3 cm) housekeeping concrete pad (required) in the desired location.
Lifting Lugs

2.5 Supply And Return Piping

When connecting the hot water outlet and cold water inlet to building piping, make sure mating surfaces
are thoroughly clean. Gaskets of appropriate size for the pipe flange must be provided in the field.
CFR units have the following inlets and outlets:
•
4" (10.2 cm) 150# flange water INLET (supply) and hot water OUTLET (return) piping.
•
2" (5.08 cm) gas inlet pipe.
NATURAL GAS
INLET
EXHAUST MANIFOLD
Figure 2-5: CFR 3000 Supply and Return Locations
•
⚠
Figure 2-4: Lifting Lug Locations
•
•
8" (20.3 cm) Air Inlet adapter
HOT WATER
OUTLET
(SUPPLY)
AIR INLET
WATER INLET (RETURN)
CONDENSATE DRAIN
•
2" Natural Gas Inlet