2
GENERAL
The EconomizerONE system utilizes the latest technology
available for integrating the use of free cooling with mechanical
cooling for packaged rooftop units. The solid-state control system
optimizes energy consumption, zone comfort, and equipment
cycling by operating the compressors when the outdoor air tem
-
perature is too warm, integrating the compressor with outdoor air
when free cooling is available, and locking out the compressor
when outdoor air temperature is too cold. Demand controlled ven
-
tilation is supported. The EconomizerONE system can be used
with 1 and 2-speed units.
The EconomizerONE system utilizes gear-drive technology with a
direct-mount spring return actuator that will close upon loss of
power. The EconomizerONE system comes standard with an out
-
door air temperature sensor, mixed air temperature sensor (also
called supply air temperature sensor). Outdoor enthalpy, indoor
(return) dry bulb or enthalpy, and CO
2
sensors are available for
field installation. Standard barometric relief dampers provide nat
-
ural building pressurization control. An optional power exhaust
system is available for applications requiring even greater exhaust
capabilities. The power exhaust set point is adjustable at the
EconomizerONE controller. See Table
1 and 2 for package usage.
See Tables 3 and 4 for package contents. See Table 5 for sensor
usage.
Compliance
Economizers meet California Energy Commission Title 24-2013/
2016 prescriptive section 140.4 (damper leakage etc.), and manda
-
tory section 120.2.i for Fault Detection and Diagnostic controls
(HJW10). Economizers meet ASHRAE 90.1-2013/2016 damper
leakage requirements as stated in Section 6.5.1.1.4 and
Table
6.4.3.4.3, and meet 2016 Fault Detection and Diagnosis
requirements in section 6.4.3.12. Economizers meet IECC 2012
section C402.4.5.2 and, IECC 2015 sections C403.2.4.3 and
C403.3.3.5 for outside air, and return air damper leakage require
-
ments, and IECC 2015 section C403.2.4.7 for Fault Detection and
Diagnostic requirements. NOTE: IECC 2015 section C403.2.4.7.1
requires differential return air sensor, which must be ordered
separately. Outside air and return air (volume) dampers are
AMCA rated.
DANGER
ELECTRICAL SHOCK HAZARD
Failure to follow this warning will result in personal injury or
death.
Before performing service or maintenance operations on unit,
turn off main power switch to unit and install lock(s) and
lockout tag(s). Ensure electrical service to rooftop unit agrees
with voltage and amperage listed on the unit rating plate. Unit
may have more than one power switch.
IMPORTANT: Read these instructions completely before
attempting to install the accessory economizer.
Table 1 — Economizer Usage — Vertical Units
EconomizerONE
ACCESSORY
KIT NUMBER
MODEL NUMBER
SMALL CABINET UNITS
CRECOMZR101A00 (LL),
CRECOMZR103A00 (ULL)
48FC/50FC/50FCQ 04-07
48GC/50GC/50GCQ 04-06
582K/559K/547K 04-07
581K/551K/549K 04-06
RGV/RAV/RHV 036-072
RGW/RAW/RHW 036-060
LARGE CABINET UNITS
CRECOMZR105A00(LL),
CRECOMZR107A00 (ULL)
48/50FC 08-14
50FCQ 08-12
48/50GC 07-12
50GCQ 07-09
582K/559K 08-14
547K 08-12
581K/551K 07-12
549K 07-09
RAV/RGV 090-150
RHV 090-120
RAW/RGW 072-120
RHW 072-102
LEGEND
LL — Low Leak Economizer
ULL — Ultra-Low Leak Economizer
Table 2 — Economizer Usage — Horizontal Units
EconomizerONE
ACCESSORY
KIT NUMBER
MODEL NUMBER
SMALL CABINET UNITS
CRECOMZR102A00 (LL),
CRECOMZR104A00 (ULL)
48FC/50FC/50FCQ 04-07
48GC/50GC/50GCQ 04-06
582K/559K/547K 04-07
581K/551K/549K 04-06
RGV/RAV/RHV 036-072
RGW/RAW/RHW 036-060
LARGE CABINET UNITS
CRECOMZR106A00 (LL)
48/50FC 08-14
50FCQ 08-12
48/50GC 07-12
50GCQ 07-09
582K/559K 08-14
547K 08-12
581K/551K 07-12
549K 07-09
RGW/RAW 072-120
RHW 072-102
RGV/RAV 090-150
RHV 090-120
CRECOMZR108A00(ULL)
48/50FC 08-14
582K/559K 08-14
RGV/RAV 090-150
LEGEND
LL — Low Leak Economizer
ULL — Ultra-Low Leak Economizer
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