Unitary products group WHOLE HOUSE DEHUMIDIFIER Spezifikationen PDF herunterladen (Seite 30)

035-17477-002 Rev. D (1202)

30 Unitary Products Group

ADJUSTMENT OF T EMPERATURE RISE

The temperature rise, or temperature difference between the

return air and the heated air from the furnace, must be within

the range shown on the furnace rating plate and within the

application limitations are shown in Tables 1 or 2. After the

temperature rise has been determined, the airflow (cfm) can

be calculated.

After about 20 minutes of operation, determine the furnace

temperature rise. Take readings of both the return air and the

heated air in the ducts, about six feet from the furnace where

they will not be affected by radiant heat.

Increase the blower speed to decrease the temperature rise;

decrease the blower speed to increase the rise.

All direct-drive blowers have multi-speed motors. The blower

motor speed taps are located in the control box in the blower

compartment. Refer to Figure 40, and the unit wiring label to

change the blower speed.

You may select a heating speed and a cooling speed. They

may be the same speed or a different speed.

To use the same speed tap for heating and cooling, the heat

terminal and cool terminal must be connected using a jumper

wire and connected to the desired motor lead. Place all

unused motor leads on Park terminals. Two are provided.

ADJUSTMENT OF FAN-OFF CONTROL SETTINGS

This furnace is equipped with a time-on/time-off heating fan

control. The fan on delay is fixed at 30 seconds. The fan off

delay is field adjustable from 60 to 180 seconds. The fan off

delay is factory set to 120 seconds.

The fan-off setting must be long enough to adequately cool

the furnace, but not so long that cold air is blown into the

heated space.

The fan-off timing may be adjusted by positioning the jumper

located on the control board. Refer to Figure 40.

FURNACE ACCESSORIES

* Su bst it ute 2 for Yor k bra nds an d 6 fo r non York br an ds.

Do not energize more than one motor speed at a

time or damage to the motor will result.

FIGURE 40 :

Typica l Hea t/C ool Sp ee d Tap

Connections

COOL

BLK - HIGH SPEED

BLU - MEDIUM SPEED

RED - LOW SPEED

BLK

BLU

RED

MOTOR LEADS

FAN OFF

ADJUSTMENT

SWITCHES

180

HEAT

PARK

LINE

ELECTRICAL

*ET03700324 Single Stage Thermostat, One-Stage Heat/One-Stage Cool, Non-Programmable

*ET03700124 Deluxe Single Stage Theromstat, One Stage Heat /One Stage Cool, Programmable

2TH13700424 Single Stage Thermostat, One Stage Heat, Round - 2TB17700424 Heat/Cool Subbase

6TH13701024 Single Stage Thermostat, One Stage Heat, Round - 2TB17700424 Heat/Cool Subbase

2 TC037 00 12 4 Twinn ing Co ntr o l

NON-ELECTRICAL

1NP0347 Propane (LP) Conversion Kit

1NP0349 Propane (LP) Conversion Kit

1PS0 306

High Altitude Pressure Switch (See instruction 035-14447-000 for proper application)

1PS0 307

1PS0 308

1PS0 309

1PS0 310

1SR0302BK External Side Filter Rack (6-Pack)

1BR0314 External Bottom or Horizontal Filter Rack - Cabinet “A”

1BR0317 External Bottom or Horizontal Filter Rack - Cabinet “B”

1BR0321 External Bottom or Horizontal Filter Rack - Cabinet “C”

1BR0324 External Bottom or Horizontal Filter Rack - Cabinet “D”

1 CT0 30 2 Conce nt ric Ve nt Termina tion - 2” Ve nt P ipe

1 CT0 30 3 Conce nt ric Ve nt Termina tion - 3” Ve nt P ipe

1CB0314 Combustible Floor Base - Cabinet “A”

1CB0317 Combustible Floor Base - Cabinet “B”

1CB0321 Combustible Floor Base - Cabinet “C”

1CB0324 Combustible Floor Base - Cabinet “D”

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 63 64

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