W8835 ENVIRAZONE PANEL
68-0258—04 4
Table 2. Required Accessories (Not Supplied with Panel).
aSupplied in the Y8835 kits.
INSTALLATION

Mounting

CAUTION
Equipment Damage Hazard.
Do not mount W8835 inside HVAC equipment.
Mount only on wall or on cold air return.
1. Mount the thermostats in each zone of the living space
using the installation instructions provided with each
thermostat.
2. Mount the dampers in the ductwork using the installation
instructions provided with each damper.
3. Mount the W8835 EnviraZone Panel near the HVAC
equipment; locate it on a wall or on the cold-air return.
See Fig. 2.
4. Level the W8835 for appearance only.
Fig. 2. W8835 mounting location.

Wiring

CAUTION
Voltage Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before continuing installation.
Wiring must comply with applicable codes, ordinances,
and regulations.
Accessory Description
Bypass Rating
(cfm)
40 VA transformers AT140A1042a—
High and low limit sensor C7835A1 009a—
Round static pressure regulator damper SPRD7
SPRD8
SPRD9
SPRD10
SPRD12
SPRD14
SPRD16
300
400
600
750
1200
1800
2400
Rectangular static pressure regulator damper SPRD12x8
SPRD12x10
SPRD12x12
SPRD20x8
SPRD20x10
SPRD20x12
1000
1200
1400
1600
2000
3000
M31121
W8835
ELECTRONIC AIR CLEANER
RETURN
AIR
W8835
FURNACE
A
IR CLEANER