Start-up - direct gas, Maxitrol series 14, Maxitrol series 44 – Greenheck DG / DGX with Pilot Ignition (463555 IOM) (Pre-2008) User Manual

Page 26

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26

Start-Up

Step 9 Flame Signal Check

To measure the flame signal connect a standard DC
voltmeter to the flame amplifier test jacks + and -
(com) as shown to the right. The flame signal should
be above 1.25 VDC and steady.

Check the flame signal with the burner at pilot only,
minimum fire, mid fire and high fire.

NOTE!

If the fame signal is not above 1.25 VDC and

steady, consult the troubleshooting section.

Start-Up - Direct Gas

Step 8 Set the Unit’s Operating Temperature

Set the operating temperature. The operating temperature setting depends on which Maxitrol controller is used.

Maxitrol Series 14

Set the discharge

temperature

(65°F Typical)

IMPORTANT!

The Maxitrol Series 14 should be set to the

desired discharge temperature. The

temperature selector may be built into the

amplifier or may be a stand-alone dial. The

stand-alone dial may be mounted remotely.

Maxitrol Series 44

IMPORTANT!

The Maxitrol Series 44 should be set to the

desired temperature. If the Maxitrol 44 is

provided with the space temperature control

option, the Selectra Stat must be mounted in the

space being heated.

Set the space

temperature

(70°F Typical)

Series 14 Discharge Temperature Setting

Series 44 Temperature Setting

(shown as Space Temperature Control)

DC Voltmeter and Flame Amplifier

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