INSTALLATION MANUAL FXMQ_PB/FBQ ECONOMIZER
2
1.
Ducted Indoor Unit Economizer Summary
The Daikin economizer option allows the FXMQ_PBVJU indoor units to utilize outside air to reduce the mechanical cooling when
the condition of the outside air permits. Automatic, sensor-controlled dampers provide a constant, programmable leaving air
temperature from the economizer whenever the indoor unit receives a call for cooling and the outside air conditions satisfy
enthalpy requirements. This allows the indoor unit expansion valve, and in turn the compressor, to operate at part load
conditions to maximize energy efficiency.
Table 1. Economizer Model Numbers
Model Number
Description
Applicable Indoor Units
Field Supplied
Power
ECONMQ12P-8-1K
Fully modulating economizer
(1) 12
”
x 20
”
x
2” MERV 8 filter
FXMQ07PBVJU
FXMQ09PBVJU
24VAC
ECONMQ12P-13-1K
Fully modulating economizer
(1) 12
”
x 20
”
x 4
” MERV
13 filter
FXMQ07PBVJU
FXMQ09PBVJU
24VAC
ECONMQ30P-8-1K
Fully modulating economizer
(1) 12
”
x 20
”
x
2” MERV 8 filter
FXMQ15PBVJU
FXMQ18PBVJU
FXMQ24PBVJU
FBQ18PVJU
FBQ24PVJU
FBQ30PVJU
24VAC
ECONMQ30P-13-1K
Fully modulating economizer
(1) 12
”
x 20
”
x 4
” MERV
13 filter
FXMQ15PBVJU
FXMQ18PBVJU
FXMQ24PBVJU
FBQ18PVJU
FBQ24PVJU
FBQ30PVJU
24VAC
ECONMQ48P-8-1K
Fully modulating economizer
(2) 12
”
x 24
”
x 2
” MERV
8 filter
FXMQ30PBVJU
FXMQ36PBVJU
FXMQ48PBVJU
FXMQ54PBVJU
FBQ36PVJU
FBQ48PVJU
24VAC
ECONMQ48P-13-1K
Fully modulating economizer
(2) 12
”
x 24
”
x 4
” MERV
13 filter
FXMQ30PBVJU
FXMQ36PBVJU
FXMQ48PBVJU
FXMQ54PBVJU
FBQ36PVJU
FBQ48PVJU
24VAC
