PF4MNB, PF4MNP: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
9
A95295
Fig. 19 – Wiring Layout of Humidifier to Fan Coil
with Electric Heat
Cooling Mode
Thermostat energizes R to G, R to Y, and R to O (heat pump only). G
energizes circuit to indoor blower motor. When G is de-energized, there
is a 90-second delay before fan relay opens.
Heat Pump Heating with Auxiliary Electric Heat
Thermostat energizes R to G, R to Y, and R to W. G energizes circuit to
indoor blower motor. W energizes electric heat relay(s) which completes
circuit to heater element(s). When W is de-energized, electric heat
relay(s) open, turning off heater elements. When G is de-energized there
is a 90-second delay before fan relay opens.
Electric Heat or Emergency Heat Mode
Thermostat closes R to W. W energizes electric heat relay(s) which
completes circuit to heater element(s). Blower motor is energized
through speed tap 4 (white wire). When W is de-energized, electric heat
relay(s) opens.
Start-Up Procedures
Refer to outdoor unit Installation Instructions for system start-up
instructions and refrigerant charging method details.
Care and Maintenance
To continue high performance and minimize possible equipment failure,
it is essential that periodic maintenance be performed on this equipment.
Consult your local dealer as to the proper frequency of maintenance
contract.
The ability to properly perform maintenance on this equipment requires
certain mechanical skills and tools. If you do not possess these, contact
your dealer for maintenance. The only consumer service recommended
or required is filter replacement or cleaning on a monthly basis.
R
G
W
Y
THERMOSTAT
R
G
W
2
W
3
E
C
FAN COIL
(CONTROL)
C
Y
AIR COND.
HUMIDISTAT
FAN HUMIDIFIER
115V
RED
GRY
WHT
WHT
BLU
VIO
BRN
M
CAUTION
!
PRODUCT DAMAGE HAZARD
Failure to follow this caution may result in poor unit performance
and/or product damage.
Never operate unit without a filter. Factory authorized filter kits may be
used when locating the filter inside the unit. For those applications
where access to an internal filter is impractical, a field-supplied filter
must be installed in the return air duct system.
Table 2 – Air Delivery Performance Correction Component Pressure Drop (in. wc) at Indicated Airflow (Dry-to-Wet Coil)
UNIT SIZE
CFM
500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000
018, 019
0.034 0.049 0.063 - - - - - - - - - - - - - - - - - - - - - - - - - -
024
0.034 0.049 0.063 0.076 0.089 - - - - - - - - - - - - - - - - - - - - - -
025
0.015 0.026 0.038 0.049 0.059 - - - - - - - - - - - - - - - - - - - - - -
030, 031
- - - - - - 0.049 0.059 0.070 0.080 - - - - - - - - - - - - - - - - - -
036
- - - - - - - - - - 0.070 0.080 0.090 0.099 - - - - - - - - - - - - - -
037
- - - - - - - - - - 0.055 0.064 0.073 0.081 - - - - - - - - - - - - - -
042, 043
- - - - - - - - - - - - - - 0.049 0.056 0.063 0.070 - - - - - - - - - -
048
- - - - - - - - - - - - - - - - - - 0.063 0.070 0.076 0.083 0.090 - - - -
049
- - - - - - - - - - - - - - - - - - 0.038 0.043 0.049 0.054 0.059 - - - -
060
- - - - - - - - - - - - - - - - - - - - - - 0.049 0.054 0.059 0.065 0.070
061
- - - - - - - - - - - - - - - - - - - - - - 0.027 0.031 0.035 0.039 0.043
Table 3 – Factory-Installed Filter Static Pressure Drop (in. wc)
SIZE
CFM
400 600 800 1000 1200 1400 1600 1800 2000
018, 019
0.020 0.044 0.075 - - - - - -
024 - 031
- 0.022 0.048 0.072 0.100 - - - -
036-049
- - - 0.051 0.070 0.092 0.120 0.152 -
060, 061
- - - - - - 0.086 0.105 0.130