Specifications
VCES-ERV-IOM-3B – Indoor ERV
5
1. FROST CONTROL
D – Recirc defrost
1
E – Exhaust only
2
V – VSD frost prevention, no
wall control compatibility
W – VSD frost prevention
C – Non-defrost
N – Non-defrost, no wall
control compatibility
3
12. ENERGY RECOVERY
1 – Aluminum, no purge
2 – Aluminum wheel c/w purge
11. CASSETTE ACCESS
R – Reverse cassette access
S – Standard cassette access
10. FREE COOLING
S – Setpoint enthalpy controller
D – Differential enthalpy controller
T – Thermostat (dry bulb)
X – No free cooling controller
9. FILTRATION
S – Supply filter
E – Exhaust filter
B – Supply and exhaust filters
X – No filtration
8. EXTERNAL DISCONNECT
F – Fused disconnect switch
8
N – Non-fused disconnect switch
8
X – No disconnect switch
2. VOLTAGE/SPEED
B – 208–120/1/60 - one-speed
4
C – 230–120/1/60 - one-speed
4
D – 208/3/60 - one-speed
E – 230/3/60 - one-speed
F – 460/3/60 - one-speed
G – 575/3/60 - one-speed
N – 208/3/60 - VFD
9/10
O – 230/3/60 - VFD
9/10
P – 460/3/60 - VFD
9/10
3. INTERNAL PROTECTION
1 – 1” insulation, single wall
2 – 1” insulation, double wall
4. SENSOR CONTACTS
D – Dirty filter contacts
W – Wheel rotation sensor
5
B – Dirty filter contacts and
wheel rotation sensor
5
X – No contacts, no sensor
5. EXTERNAL FINISH
S – Standard galvanized package
W – White prepaint package
6. OUTSIDE AIR DAMPER
1 – Insulated motorized
6
2 – Insulated spring return
6
3 – Non-insulated motorized
7
4 – Non-insulated spring return
7
5 – No damper
7. DOOR FASTENERS
S – Standard filter door c/w screws
D – Deluxe filter door c/w ¼ turn fasteners
Notes:
1 When ordering recirc defrost, you must order outside air and exhaust air dampers. Recirc defrost option includes recirculation dry contacts for unoccupied mode.
Includes exhaust backdraft.
2 Outside air damper required.
3 No dampers required.
4 Requires a neutral wire with L1 and L2.
5 Units ordered with the wheel rotation sensor option must include a frost option other than ‘V’ or ‘N’.
6 This option is for recirc defrost units only.
7 This option cannot be ordered on recirc defrost units.
8 Fused/non-fused disconnect switch is field installed.
9 All VFD options include one controller per motor.
10 Minimum motor size is 1 hp.
1 2 3 4 5 6 7 8 9 10 11 12
ERV2000i Nomenclature (1,200–2,800 cfm)










