Access To Ports On Outdoor Furnace - Central Boiler Classic CL 4030 Owner's Manual

Return Side View
For illustration purposes only.
6764
3042
6054
198
118
296**
Swing Check
Valve
1330
5926
PEX Pipe
**For 1-1/4" lines use p/n 5871.
Central Boiler recommends installing
swing check valves on the return
lines to eliminate reverse flow.
Power disconnect shuts off all power
including pumps.

Access to Ports on Outdoor Furnace

Ports are provided that allow mounting circulation pumps on the outdoor
furnace. Refer to the illustrations in this section for proper supply and return
line and pump installations for your model.
NOTE: The Installation Guide provides more information on pump selection. For even more
detailed information, see the Hydronic Component Selection Guide (p/n 2482), available
from your Central Boiler dealer.
NOTE: At least one circulation pump must run continuously to ensure proper operation of
the outdoor furnace.
Classic CL 4030/5036 – 1-Pump Configuration
1 - Pump Parts List*
Qty p/n Description
1 118 3/4" Close Nipple
1 5800033 0015e3 Pump
2 198 3/4" Ball Valve
1 224 3/4" Isolation Flange Kits
1 296 3/4" Swing Check Valve
1 556 Power Supply Cord, 32"
2 1330 3/4" x 1" MPT to PEX
2 3042 1/2" x 1/8" Bushing
2 6054 Temperature Gauge
4 5926 1" PEX Clamp Crimp Ring
1 6593 Grounding Rod Kit
NOTE
A Grounding Rod Kit (p/n 6593)
must be installed with every furnace.
CLASSIC OUTDOOR FURNACE • OWNER'S MANUAL
Use a 1/2" x 1/8"
bushing (3042) with
temperature
gauges.
6054
Hot
Supply
5800033
224
556
198
118
Swing
296
Check
Valve
1330
Return
5