Moberg Fireplaces GS-18-3, Installation And Operation Manual

Page: 2 / 16

NOTE:
Moberg Fireplaces Georgian Series Gas Log Systems are designed to be assembled by
a Moberg Fireplaces approved technician only. These sophisticated decorative gas log systems
also require individual site-specific plans and specifications. They are designed to be fully
integrated into the building control systems.
I. System Installation and Grating Assembly
Pre Installation
•
Consult Moberg Fireplaces typical wiring/plumbing diagrams for exact protocols. Typically gas supply route is to be:
manual ball valve → electronic solenoid valve → pressure regulator → Robert Shaw electronic valves → modulating
valves.
•
Verify plumbing for gas and electrical conduits are stubbed into fireboxes including aluminum pilot tubing(s).
•
Verify high temperature ignition wire(s) are pulled into firebox
(Consult MFI Typical Electronic Ignition Wiring Diagrams TJ-GS-PE1, PE1.1attached )
•
Verify gas pressure is within correct pressure range.
•
Verify all fireplace masonry and/or stonework is finished.
•
Verify damper blade and/or damper motor functions.
•
Verify manual gas valves, Robert Shaw electronic valves, modulating valves, time delays, manual switching, and
transformers are installed and functional
Preliminary Installation
•
Place grating in firebox, centered and within 6” of rear wall of firebox (or simply centered for double-sided fireplace
installations).
•
Consult Moberg Fireplaces drawing TJ-MFI-G1.3 showing plan at fireplace for exact grating placement.
•
Adjust four grating legs and locknuts so that grating is level side-to-side and front-to-back, and placed above hearth
at required height for particular model.
•
Plumber and electrician to make physical connections to gratings, hearth effect burners (if applicable) and ignitors
(using steel snap-spring connectors).
•
Connect main burner(s) to gas supply using approved flexible gas line(s) in firebox (if allowed).
•
Test pilot flame(s) and igniter function with gas supply to burner(s) off at Robert Shaw electronic valve.
•
Contractor to install grating in firebox, prior to MFI technician’s arrival on job-site.
Final Installation and Grating Assembly
•
Moberg Fireplaces technician to arrive after preliminary installation of grating, burners and ignitors to inspect and
adjust valving, control system, place logs and sculpt flames around logs.
•
Technician to install copper slag, logs and hearth effects materials.
•
On-site support of plumber and electrician is required during assembly period to activate gas or electrical systems,
modify installation and verify safety mechanisms. Client is responsible for ensuring their availability.
II. Operating Instructions for Electronic Gas Controls
There are two locations to operate the gas fireplace. One location is a local wall Switch near the fireplace for normal
interface of operations, and the other is an HMI panel (human machine interface) located in the user control panel near the
signal control panel. The HMI has more capabilities than the Lutron Switch.
It is intended that the wall Switch will be used primarily for normal operations and the HMI will be used for initial set up and
tuning the scene settings for the gas burners.
WALL SWITCH OPERATION – EFFECT
1. OFF lamp illuminated fireplace is in (Standby) unless in lockout condition. (HMI operation section 6 explains the lockout
condition)
2. Pressing the ON button, the start-up sequence begins. The OFF lamp will turn off and the ON lamp will flash during the
start-up sequence. Once all the interlocks have been satisfied the ON lamp will illuminate steady and the fireplace burners
will ignite.
3. The fireplace has three options that can be selected by pushbuttons for different scenes; scene 1 (low), scene 2
(medium), and scene 3 (high). There is an illuminated lamp next to each pushbutton to identify which scene is selected.
After the fire is started it will go to whichever scene is selected. At any time a different scene can be selected.
4. Pressing the OFF button at any time will turn the flames off. The fireplace is then in (Standby) with the OFF lamp
illuminated.
Page 2 of 16