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INSTALLATION
INSTRUCTIONS
V R 028 A12 H 4 A L2 1
Prod uct Cat e gory
V = Ventilator
Wheel Type
R = Rooftop Stationary
O = Stand Alone Over and Under, Stationary
S = Stand Alone Side by Side
P = Rooftop Pivoting (036-060 & 078-150 only)
CFM*
006 = 300 to 550
011 = 600 to 1000
020 = 1100 to 1700
028 = 2200 to 2800** 1500 to 2200**
036 = 2800 to 3600
046 = 3400 to 4600
062 = 5500 to 6200** 4800 to 5600**
074 = 6000 to 8000
122 = 8000 to 13000
York Roof top Cab i net
A06 = Small Sunline ZF/ZR/XP036-072
A12 = 50" Predator ZF/ZH/ZR/XP*102-150, ZJ076-150
B12 = 42" Predator ZF/ZR/XP078-090, ZH0037-090, ZJ/ZR076-150
A15 = Large Sunline ZF180
A25 = Large Sunline ZF210-300, ZJ180-300, XP180-240
A40 = Millennium 25, 30 and 40 Ton Package
Blower Speed
H = High Speed**
M = Medium Speed**
V = Variable Speed
L = Constant Volume
* CFM is ERV wheel rating. This may vary depending on unit cabinet pressure drop.
** These CFM ranges are dependant upon blower motor selection.
Low Ambient Kit (LAK) - Defrosts wheel when low ambient temp near the exhaust blower shows possible frost up.
Start-Stop-Jog (SSJ) - provides a "free cooling" mode by stopping enthalpy wheel when temps are appropriate for free
cooling.
Motorized Outside Air (MOA) damper - closes a damper on the outside air intake when the ERV is not in use.
Pressure Sensor (PS) - Analog differential pressure gauge (Magnahelic) shows pressure drop across the wheel in
Inches of Water.
UNITARY ENERGY RECOVERY VENTILATOR
MODEL VR011A12H & B12H (STATIONARY)
York UERV Model Nomenclature
PAGE 6
MAXA-MI$ER
5257541-UAI-A-0616 / R11A-29YSDW
Ad di tional Op tions
AA = No Options Installed
L1 = Low Ambient Kit (LAK)*
L2 = LAK & MOA*
L3 = LAK & MOA & SSJ (not used on P models)*
L4 = LAK & MOA & SSJ & PS (not used on P models)
L5 = LAK & SSJ (not used on P models)*
L6 = LAK & SSJ & PS (not used on P models)
L7 = LAK & PS
L8 = LAK, MOA and PS
M1 = Motorized Outside Air (MOA)*
M2 = MOA & SSJ (not used on P models)*
M3 = MOA & SSJ & PS (PS) (not used on P models)
M4 = MOA & PS
S1 = Stop-Start-Job (SSJ) (not used on P models)*
S2 = SSJ & PS (not used on P models)
P1 = Pressure Sensor (PS)
A = No Selection on Rooftop Units
Prod uct Gen er a tion
1 = First Generation
Volt age
2= 208/230v-3ph
4= 460v-3ph
5= 575v-3ph
9= 208/320v-1ph
Duct Type
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