158
MAC 6000 Hydronic Heater
Riello Burner
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
2453
7
GB
OIL LINE CONNECTIONS
WARNING:
The burner is shipped from the factory with the pump set to operate on a TWO line system.
NOTE:
- THIS BURNER
MUST
BE INSTALLED WITH A TWO LINE SYSTEM TO ALLOW THE HYDRAULIC DELAY
VALVE TO OPERATE.
- Pump pressure
must
be set at time of burner start-up. A pressure gauge is attached to the PRESSURE PORT
(1) for pressure readings.
Two PIPE CONNECTORS (2) are supplied with the burner for connection to either a single or a two-pipe system.
Also supplied are two adapters (3), two female 1/4” NPT, to adapt oil lines to burner pipe connectors.
All pump por t threads are
British Parallel thread design
. Direct connection of NPT thre ads to the pump will
damage the pump body.
Riello manometers and vacuum gauges do
not
require any adapters, and can be safely connected directly to pump
ports.
An NPT (metric) adapter
must
be used when connecting other gauge models.
NOTE:
If the
pump cover (4)
is removed for any reason, be sure the O-ring (5), is properly seated in the pump cover (4)
before re-attaching the pump cover to the pump housing.
5
4
1
2
3
7
6
D6180
