Broan Bonnet Control Switch Kit for B2VM Air Handlers Installation guide

Broan
Brand
Broan
Model
Bonnet Control Switch Kit for B2VM Air Handlers
Type
Installation guide
Installation Instructions
For B2VM Air Handlers
Bonnet Control Switch Kit
GENERAL
The optional bonnet control and relay switch is
recommended in variable speed heat-pump systems
where supply air temperatures may drop below a
comfortable level during normal operation. The bonnet
control switch senses when the supply air temperature is
below a preset comfort level (set by installer) and sends
a signal to the motor to reduce the airflow. The supply air
temperature increases when the airflow is reduced. Airflow
will resume to normal levels if electric strip heat is energized.
The air handler is pre-programmed to accept bonnet
switch inputs. Remove jumper connector “J1” on the
thermostat input board when installing the bonnet switch.
The bonnet switch will not affect the cooling cycle.
NOTE: The bonnet control switch may not be used with a
dual capacity outdoor unit.
INSTALLATION
Mount the bonnet control switch in the supply air duct as
directed in separate instructions included with kit. Locate
the bulb close to the unit, but not within the sight of the
heating elements. Wire the bonnet control switch to the
thermostat input board and bonnet switch relay through
the low-voltage wire entrance in the air handler as shown
in Figure 1, and remove jumper connector, “J1”.
NOTE: Your kit should include the bonnet control switch
and a 24V relay with normally open contacts.
BONNET
CO NTRO L
SWITCH
213
Y1
Y2
O
G
W
2
E
W
3
W
4
C
R
240V
SEC COM
LH
TR ANS-
FO R M ER
HUMID-
ISTAT
1
2
3
4
5
6
7
8
9
L1 L2
TR ANS-
FO R M ER
THERMOSTAT
INP UT B O A RD
24V
SEQUENCERS
ELEMENTS
YELLOW
RED
RED
WHITE
BLUE
1
2
3
4
5
6
7
8
9
BLACK
BLAC K
BLAC K
CIRC UIT
BREAKERS
SUPPLY
V
O
LTA
G
E
RED
SEQUENCERS
LIM IT
GRAY
ORANGE
VIOLET
GR AY
BLACK
RE D
ELEMENTS
GRAY
GRAY
BLUE
LIM IT
To Motor
YR
2
Outdoor Section
W
O.D. T-Stat #1
EC O
Defrost
Signal
YOEWR
2
GC
Thermostat
Bonnet
Control Switch
Humidistat
O.D. T-Stat #3
O.D. T-Stat #2
(Remove J1, J2, J3,
J4, and J5)
Heat Pump System with 4-Stage, 20KW Electric Heat,
B o n n e t S witc h , H u m id is tat, an d 3 O u td o o r T h erm o s ta ts
BROW N
Bonnet
Control Relay
Figure 1
St. Louis, MO
7075170
Specifications and illustrations subject to change
without notice and without incurring obligations.
Printed in U.S.A. (07/96)
These instructions are intended to assist qualified individuals experienced in the proper installation of heating and/or air conditioning appliances.
Some local codes require licensed installation/service personnel for this type equipment. All installations must be in accordance with these
instructions and with all applicable national and local codes and standards.
  • Page 1 1

Broan Bonnet Control Switch Kit for B2VM Air Handlers Installation guide

Broan
Brand
Broan
Model
Bonnet Control Switch Kit for B2VM Air Handlers
Type
Installation guide
Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents