37
Marvair GAA A/C w/Gas Heat I&O Manual
06/2023 Rev.5
4.6 Installation Materials
Installation Kits
Marvair GAA air conditioners with gas heat have built-in mounting flanges that function as side brackets.
All models require and are shipped with a bottom mounting bracket. There is also an air intake hood
packed inside each unit and a vent hood.
Standard Kit Components
1. One 12 Ga. “L”-shaped bottom bracket
The package may include other factory-supplied items ( optional ) listed below and on the following page:
Part # Description
Thermostats
50121
Digital thermostat. 1 stage heat, 1 stage cool. Non-programmable. Fan switch: Auto & On.
Manual changeover system switch: Cool-Off-Heat. Low temperature protection. ° F or ° C.
50123
Digital thermostat. 1 stageheat, 1 stagecool. 7 dayprogrammable. Fanswitch:Auto& On.Auto-
change over. Keypad lockout. Non-volatile program memory. Title 24 compliant - no batteries
needed.
50124
Digital thermostat. 1 stage heat, 1 stage cool. 7 day programmable. Fan switch: Auto & On.
Manual changeover system switch. LCD display. Title 24 compliant - no batteries needed.
50100
Seven day programming. Two occupied and two unoccupied periods per day. Individual heat
and cool setpoints. Manual or automatic changeover. System switch: Off, Cool, Heat, Emergency
Heat. Fan Switch: Auto & On. Keypad lockout available. Ventilation terminals. No batteries
required. Display indicates when Auxiliary Heat or Emergency Heat are activated. Requires a
50101 sub-base if used on a heat pump or a 50109 if used on an air conditioner.
70076
Internal Thermostat - Factory Installed 1 Stage Heat, 1 Stage Cool with Auto Changeover, Elimi-
nates need for External Wall Mount T’Stat and Sub-Base.
50092
Thermostat Guard. For use with the 50107, 50122, 50121, 50123 and 50124.
Supply Grilles
80675
28 x 8” Adjustable, Aluminum, Double Deflection Supply Grille for GAA1024/1030/1036
80676
30 x 10” Adjustable, Aluminum, Double Deflection Supply Grille for GAA1042/10481060
Return Grilles
80678
28 x 14” Aluminum Return Grille for AGAA1024/1030/1036
80679
30 x 16” Aluminum Return Grille for GAA1042/1048/1060
Additional Items Needed:
Additional hardware and miscellaneous supplies ( not furnished ) are needed for installation. For example,
the list below contains approximate quantities of items typically needed for mounting a unit on a wood
frame wall structure with standard full length mounting bracket or flanges. Concrete or fiberglass structures
have different requirements.
(10 )
3 / 8” mounting bolts
or lag screws for side brackets and anchors, if required for side brackets.
(20 )
3 / 8” washers
