Installation guide

pROgRAMMABLE
THERMOSTAT
MODEL2S
24 VAC HOT _--
FAN [_
COOL STAGE 1
COOL STAGE 2
HUT STAGE 1
HEAT STAGE 2 _"
24 VAC COMM _- -
N/A []
OUTDOOR _=[_
[]
F'K4C FV4A T_V O SPEED
OR 40FK AIR CON DITIONEF_
FAN COtL
] MPER
-NI
REMOVE
J2 JUMPER
_'STAGIN G
._ _FOR HEAT
See notes 1, 2, 3, 5, and 7
A01493
PROGRAMMABLE
THERMOSTAT
MODEL2S
; HEATSTAGE2 r_-].
cool STAGE 1
HEAT STAGE 1 [_
CooL STAGE 2
24 VAC HOT [_
24 VAC COMM
N/A
THERMIDISTAT
CONTROL
MODEL RH
HEAT STAGE 2
HEAT STAGE 1
COOL STAGE 1 @
COOL STAGE 2
rAN [_
24 VAC HOT r_"
DEHUMIDIFY
24 MAC COMM
HUMIOIFV
OUTOOOR_]_Tt
VARIABLE-SPEED
CONOENSING TWO_PEED
FURNACE AIR CONDITIONER
m
.....
.... JilHUMI I
FK4C. FV4A TWO-OpEL D
OR 40FK AIR CONDITIONER
FAN COIL
m
' °ELVEJ2 U2PER
..... _] " FOR HEAT STAGING
......°
.....
...... _]
] , REMOVE
• J1 JUMPER
See notes 1,2, 3, 6, 7, 8, and 9
A01494
See notes1, 2, 3, and 5
A01507
Fig. 11--Typical 24V Wiring Diagram (Cont)
required. The LCC for standard PSC blower products consists of a
standard humidistat which opens contacts on humidity rise and a
pilot duty relay with 24v coil.
NOTE: If an LCC is desired, low-speed airflow must be main-
tained so that a minimum of 300 CFM/ton can be supplied during
high speed LCC operation,
Step 9---Make Airflow Selections
AIRFLOW SELECTION FOR 58CVA/58MVP FURNACES
The 58CVA/58MVP Non-Condensing Variable Speed Furnaces
provide high- and low-speed blower operation to match the
capacities of the compressor at high and low speeds. To select the
recommended airflow and for adjustments to the manual switches
labeled SWI, A/C and CF on the control board refer to the furnace
Installation, Start-Up. and Operating lnsWuctions. The 315AAV
utilizes a control center that allows the installing technician to
select the proper airflows. The A/C switch determines the airflow
during high speed compressor operation. Airflow for hight and low
speed can be calculated at either 350 CFM per ton or 400 CFM per
ton based on the positions of SWl 5.
AIRFLOW SELECTION FOR FK4C, FV4A, OR 40FK FAN
COILS
The FK4C and FV4A provide high- and low-speed blower
operation to match the capacities of compressor at high and low
speeds. To select recommended airflow, refer to the FK4C, FV4A,
or 40FK Installation Instructions. The FK4C. FV4A, and 40FK
utilize an EASY SELECT control board that allows the installing
technician to select proper airflows. For adjustments to control
board and recommended A/C SIZE and CFM ADJUST selections.
This fan coil has an adjustable blower off delay factory set at 90
sec for high- and low-speed blower operation.
For other combinations of equipment consult the Product Data
Digest.