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Refer to Nameplate

for Input Voltage

3PH

L1 L2 L3

Optional

Disconnet

Switch

GND

Optional Aux. Cont.

L1 L2 L3

Heater

Contactor

Primary

Secondary

Control Transformer

Refer to Nameplate for Primary (Input)

and Secondary (Control) Voltage.

Built-In or

External

Thermostat

Connect Thermostat Wires

to the Common and Normally

Closed Terminals of One Pole

on the Thermostat.

Remove this Wire when

Using Thermostat

Optional Alarm

Optional

Elements

Manual Reset

High Limit

Auto Reset

High Limit

Motor

3PH

Motor

Contactor

L2 L1

(Red)

Fan

Heat

(White)

Diagram IV - 3 PH Wiring with Fan Switch

Transformer Color Code Tabulation

PRI

VOLT.

PRI. XFMR

LEAD CLRS.

120V SEC

LEAD CLRS.

24V SEC

LEAD CLRS.

208

BLK

RED

BLK

WHT

YEL

BLU

240

BLK

ORG

BLK

WHT

YEL

BLU

380

BLK

VIO

BLK

WHT

YEL

BLU

415

BLK

YEL

BLK

WHT

–

415

BLK

BRN

–

YEL

BLU

480

BLK BLK/RED

BLK

WHT

YEL

BLU

575/600 BLK

GRY

BLK

WHT

YEL

BLU

Electric Blower Unit Heater for Hazardous Locations

Heating Element Rating

03 = 3.0 kW 18 = 18.0 kW
05 = 5.0 kW 20 = 20.0 kW
07 = 7.5 kW 25 = 25.0 kW
10 = 10.0 kW 30 = 30.0 kW
15 = 15.0 kW 35 = 35.0 kW

Heater Voltage
2 = 240V 6 = 575V
3 = 380V 8 = 208V
4 = 480V 9 = 600V
5 = 415V

Phase
1 = 1 Phase
3 = 3 Phase

30 = 24V Controls
32 = 120V Controls

00 = No Thermostat
40 = Thermostat

1 = Ethylene Group C & D, E, F, G T3B
2 = Propylene Group C & D, E, F, G T3B
3 = Ethylene Group C, D, F, G T3B
4 = Propylene Group C, D, F, G T3B

0 = No Options

1 = 15 or 30 Amp Disconn. Switch

2 = 60 Amp Disconn. Switch

3 = Pilot Light

4 = Pilot Light and 30 Amp

Disconn. Switch

5 = Pilot Light and 60 Amp

Disconn. Switch

6 = Summer Fan Switch

7 = Summer Fan Switch, Pilot Light

8 = Disconn. Switch with Summer

Fan Switch

9 = Disconn. Switch, Pilot Light

with Summer Fan Switch

CXH-A

Explosion Proof

MODEL NUMBER DESCRIPTION

Содержание CXH-A-03

Страница 1: ...1 PF490 11 161 302421 004 June 2018 Installation and Operation Instructions CXH A Forced Air Heater CXH A 03 EP to CXH A 35 EP Class I Groups C D Div 1 2 Class II Groups E F G T3B 165 C 329 F ...

Страница 2: ... 575V 3Ø 32 25 590 840 133 19 1 8 23 7 8 21 3 1 2 13 5 8 CXH A 10 10 240V 1 or 3Ø 208 480 575V 3Ø 32 34 120 840 138 19 1 8 23 7 8 21 3 1 2 13 5 8 CXH A 15 15 208 240 480V 575V 3Ø 47 51 180 1450 150 25 27 7 8 21 4 13 32 17 5 8 CXH A 18 18 240V 3Ø 43 61 420 1400 165 25 27 7 8 21 4 13 32 17 5 8 CXH A 20 20 480 575V 3Ø 43 68 240 1400 165 25 27 7 8 21 4 13 32 17 5 8 CXH A 25 25 480 575V 3Ø 54 85 300 23...

Страница 3: ...t wiring and seals must meet NEC and local codes for hazardous lo cations 9 External line fusing or circuit breaker protection is re quired 10 High temperature cutout s must never be bypassed in the control circuit 11 Alarm pilot lamp if supplied will turn on if the high tem perature cutout s actuates Steady on lamp indicates temperature cutout s has tripped This could result if the heat exchanger...

Страница 4: ...ate thermostat on interior partition walls or posts away from cold drafts internal heat sources and away from heater discharge air streams Small rooms can be heated by one unit heater Where two walls are exposed the heater should be mounted as shown in Figure 2 Large rooms require multi unit installations Num ber and capacity of units will be determined by volume of building and square feet of flo...

Страница 5: ... freely Do not mount mercury type thermostat directly on unit vibra tion could cause malfunction Heater may be mounted on a shelf or stand from the bottom Be sure that mounting clearances are maintained and that bottom of unit has at least 1 clearance underneath it This is necessary for good air circulation and servicing of heat exchanger All mounting methods must allow for removal of front cover ...

Страница 6: ... Mounting Cust Supplied 6 Ref 3 1 2 SCH 40 Pipe or 4 O D X 25 Wall Tube Cust Supplied Length to Suit P Adapter Bracket Supplied with 5 8 Bolts Single Point Swivel 4 ø Supplied Pole Support Bracket Heater Mounting Bracket Arm Hardware ø 3 8 Hardware Cust Supplied ø 1 2 x 4 U Bolts Hardware Cust Supplied Ceiling Mount Kit Model HMK 00 4 7 8 4 9 16 Swivel Ceiling Hanger S A Hardware 5 8 ø Hex Nuts Wa...

Страница 7: ...ings must be fitted with plugs that are U L recognized for use in hazardous locations 6 Heaters may be provided with a built in control switch and or thermostat If not they should be controlled by an externally mounted disconnect switch and or separately mounted thermostat as shown in the appropriate wiring diagram on page 6 In case of malfunction the personnel in the area should be aware of locat...

Страница 8: ...e to be located in the haz ardous area they must be approved for use in the class of location Where the consequences of failure may be severe back up controls are essential Refer to Nameplate for Input Voltage 1PH L1 L2 Optional Disconnet Switch GND Optional Aux Cont L1 L2 L3 Contactor X1 H1 H2 X2 Primary Secondary Control Transformer Refer to Nameplate for Primary Input and Secondary Control Volt...

Страница 9: ...e Pole on the Thermostat Remove this Wire when Using Thermostat T3 T2 T1 Optional Alarm Optional Elements Manual Reset High Limit Auto Reset High Limit Motor 1PH R Motor Contactor L2 L1 Red Fan Heat White Diagram II 1 PH Wiring with Fan Switch Transformer Color Code Tabulation PRI VOLT PRI XFMR LEAD CLRS 120V SEC LEAD CLRS 24V SEC LEAD CLRS H1 H2 X1 X2 X1 X2 208 BLK RED BLK WHT YEL BLU 240 BLK ORG...

Страница 10: ...losed Terminals of One Pole on the Thermostat Remove this Wire when Using Thermostat T3 T2 T1 Optional Alarm Optional Elements Manual Reset High Limit Auto Reset High Limit Motor 3PH Terminal Block Diagram III 3 PH Wiring Transformer Color Code Tabulation PRI VOLT PRI XFMR LEAD CLRS 120V SEC LEAD CLRS 24V SEC LEAD CLRS H1 H2 X1 X2 X1 X2 208 BLK RED BLK WHT YEL BLU 240 BLK ORG BLK WHT YEL BLU 380 B...

Страница 11: ...U 380 BLK VIO BLK WHT YEL BLU 415 BLK YEL BLK WHT 415 BLK BRN YEL BLU 480 BLK BLK RED BLK WHT YEL BLU 575 600 BLK GRY BLK WHT YEL BLU Electric Blower Unit Heater for Hazardous Locations Heating Element Rating 03 3 0 kW 18 18 0 kW 05 5 0 kW 20 20 0 kW 07 7 5 kW 25 25 0 kW 10 10 0 kW 30 30 0 kW 15 15 0 kW 35 35 0 kW Heater Voltage 2 240V 6 575V 3 380V 8 208V 4 480V 9 600V 5 415V Phase 1 1 Phase 3 3 ...

Страница 12: ...fac tory supplied replacement blade only 6 Check for any sign of leaking from the heat exchanger Too little fluid will cause the high temperature cutout s to trip or cycle Periodically inspect the heater for leaks by visual examination using a flashlight Look for evidence of fluid dunning down the face of the heat exchanger from the top center Look for evidence of fluid inside the lower terminal e...

Страница 13: ...actory supplied motor See renewal parts section 2 To replace the motor proceed as follows A Disconnect the unit from power supply B Units with motor splice box Remove 4 bolts and cov er of motor splice box See Figure 12 C Units without motor splice box Remove 16 bolts and cover of main control enclosure D Note wire connections for future reference and dis connect all wires leading to the motor All...

Страница 14: ...roperty damage When provided the following components are located in the cast aluminum hazardous location enclosure Remove cover and retaining bolts to gain access the following items See Figure 16 1 CONTROL TRANSFORMER This item is located in the electrical enclosure It may be replaced while in the enclosure To service or replace re move the quick connect wires and mark their locations Remove two...

Страница 15: ...ta Sheet Chromakool PG Transformer Contactor Figure 16 Electric Control Voltage 24V 120V Contactor 072 304551 002 072 304551 008 Transformer 208 240 480 PRI 315 304252 002 315 304252 001 Transformer 575 PRI 315 304252 005 315 304252 003 Aux Contactor 072 304551 102 072 304551 102 Transformer 380 415 PRI 315 304252 006 315 304252 007 Transformer CXH B 315 304252 008 ...

Страница 16: ...16 1 33 35 50 19 15 17 16 31 34 52 51 32 25 30 26 44 27 28 29 75 50 27 15 6 62 10 CO 8 12 9 49 15 Figure 17 ...

Страница 17: ...6 353 304167 001 CXH A 03 83 193 302087 007 353 304167 001 CXH A 03 21 193 302087 006 353 304167 002 CXH A 03 23 193 302087 007 353 304167 002 CXH A 03 43 193 302087 007 353 304167 005 CXH A 03 63 193 302087 008 353 304167 006 CXH A 05 81 193 302087 006 353 304167 008 CXH A 05 83 193 302087 007 353 304167 008 CXH A 05 21 193 302087 006 353 304167 009 CXH A 05 23 193 302087 007 353 304167 009 CXH A...

Страница 18: ...e Chromalox limited warranty applicable to this product at http www chromalox com customer service policies termsofsale aspx 2016 Chromalox Inc All rights reserved Chromalox 103 Gamma Drive Pittsburgh PA 15238 412 967 3800 www chromalox com ...

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