nVent DAHHL4001A Hazardous Location Heaters Instruction Manual

DAHHL4001A Hazardous Location Heaters
Instruction Manual

Hazardous Loc ation Heaters
400W and 600W Models
INSTRUCTION MANUAL

NOTE: The respective operating instructions must be observed. For EC Type Examination Certificate PTB 02 ATEX 1041X and IEC Scheme Certificate IECEX PTB 07.0052X, see www.nVent.com.

APPLICATION

These electric-finned heaters are designed to be used in small enclosures or cabinets where measuring instruments, control valves or similar equipment in hazardous areas must be heated.
Vertical-finned heaters heat the area by transferring the heat to the surrounding air, creating convection current. This type of heater is recommended when it is not possible to mount a heating block directly to a flat surface.
CP heaters must be installed with a thermostat to avoid damage to the heater.
Thermostat models (HLTSTAT10C, HLTSTAT20C) are sold separately.
If maintaining a constant temperature in the enclosure is desired, an additional temperature controller should be used.

TECHNICAL DATA

DESIGN DATA

| DAHHL400XA| DAHHL600XA
---|---|---
Rated voltage (VAC)| 120 (108-132 range)| 230 (207-253 range)| 120 (108-132 range)| 230 207-253 range)
Maximum Rated Current (Amps) (acc. to DIN VDE 0298)| 10| 10
Nominal power [W]| 400| 600
Temperature class| T3| T3
Ambient temperature| -76 to +140 F (-60 to +60 C)| -76 to +140 F (-60 to +60 C)
Maximum permissible operating temperature range at normal rating| -76 to +302 F (-60 to +150 C)| -76 to +302 F (-60 to +150 C)
Installation position| Fins vertical| Fins vertical
Connection cable| 39 (1 m) long silicone cable, notch and oil resistant, 3x AWG16;
0 0.37 (9.4mm)| 39 (1 m) long silicone cable, notch and oil resistant, 3x AWG16;
0 0.37 (9.4mm)
Conduit connection| 1/2 NPT| 1/2 NPT
Ingress Protection| IP66 / IP68 (1bar/30min)| IP66 / IP68 (1bar/30min)
Material| seawater-proof aluminium, black anodized| seawater-proof aluminium, black anodized
Height (in./mm)| 8.9 (225)| 12.8 (325)
Width (in./mm)| 9.0 (229)| 9.0 (229)
Depth (in./mm)| 2.4 (60)| 2.4 (60)
Weight (lb./g)| 7.9 (3600)| 11.7 (5300)

EXPLOSION PROTECTION

| CP MEGATHERM
---|---
Manufacturer| INTERTEC-Hess
CSA Certificate| 1655545 (LR43674)
CSA Type of Protection| I, Grp. ABCD T3 Cl. Cl. II Grp. EFG
IEC Scheme Certificate| IECEx PTB 07.0052X
EC Type Examination Certificate| PTB 02 ATEX 1041 X
Marking| II 2 G Ex d IIC T3, T4, T5, T6
112 D Ex tDmD A21 IP65 T135 C, T200 C

INSTALLATION INSTRUCTIONS

MINIMUM CLEARANCES
Four M6 bolts and unistrut nuts are included in the mounting kit for attaching the heater to the unistruts as shown in Figure 1. The heater has four mounting holes in a 6.65 (169mm) square mounting pattern.

Alternatively, M6 nuts or bolt heads (.394 / 10mm across flats) may be slid into any of the heater fins to provide more mounting flexibility; see Figure 2:

Heaters are equipped with a ground terminal. Use a cable gland or a ½ NPT conduit depending on the application. Be careful not to bend or exert any load on the connection cable during unpacking and transport.
To ensure effective convection, the heater should be installed with the fins positioned vertically as shown in Figure 1 on page 4. Observe the necessary clearances to the enclosure and the instruments installed near the heater as shown in Figure 3.
Be sure to comply with the permissible operating temperature range.
Before entering the customer-supplied Ex junction box, the connection cable must be firmly installed observing the permissible bending radius of 5 times the outside cable diameter.
In dusty, hazardous areas, the applicable requirements of the EN 60079-14 have to be observed.

CAUTION! Remove the RED protection cap only for ½ NPT conduit installation. Never remove the adapter.
CP heaters must be installed with a thermostat to avoid damage to the heater.
The heater must only be connected and secured by certified technical personnel in accordance with the label specifications, rated voltage and rated current:
If operating voltage equals rated voltage, the heater will generate the specified nominal output, with an allowance to voltage fluctuations of up to 10%.
Circuit breakers suitable for up to 16 amps can be used for short circuit and line protection.
A ground terminal is provided for the purpose of ensuring potential equalization. The terminal is marked as such.
In a TT or TN system, a residual current operated protective device (RCD) must be used with a rated response fault current not exceeding 100 mA. Residual current devices with a rated response fault current of 30 mA are preferred.
When installing for an IT system application, an insulation monitor must be used that switch off the power supply as soon as the insulation resistance falls to 50 ohms per volt of the rated voltage or lower (see DIN EN 60079-14:2008; section 7.4).

OPERATION

Turn on the heater once properly installed. A safety fuse will permanently open the circuit if improperly installed.

WIRING DIAGRAM

MAINTENANCE

The heater requires no maintenance.
Performance and safety tests can be conducted at intervals as determined by the operator in compliance with current regulations.
Repairs must only be done by the manufacturer. In dust hazardous areas, applicable requirements of EN 60079-17 and EN 60079-19 must be observed.

SAFETY INSTRUCTIONS

Installation of the heater in an exposed position involves a certain risk of injury. The ends of the fins and hot surfaces can pose a risk of injuries.

• Maximum 160 C (320 F) with T3 heaters

A non-resettable temperature limiter integrated into the heater will cut the power if it exceeds the maximum temperature. A failure could result from an external heat source, incorrect installation, working temperature too high or a technical failure.
A temperature indicator shows potential problems and failures at an early stage (e.g. incorrect installation). Please check the application if more than three fields have irreversibly changed to black.
The warranty is null and void if the temperature indicator has been removed from the heater.

CE DECLARATION OF CONFORMITY

** EU Declaration of Conformity
INTERTEC Hess GmbH
Raffineriestraße 8
93 333 Neustadt / Donau
INTERTEC Hess GmbH,**
declare under our sole responsibility that the product

to which this declaration relates is in accordance with the provision of the following directives
2014/34/EU (ATEX)
2014/35/EU (LVD)
2014/30/EU (EMC)
2011/65/EU (RoHS)
2012/19/EU (WEEE)
and is in conformity with the following standards or other normative documents
EN IEC 60079-0:2012+A11:2013
EN IEC 60079-1:2014
EN IEC 60079-31:2014
EN IEC 60529:1991+A1:2000+A2:2013
EN IEC 61000-6-4:2007+A1:2011
Marking
****  0102
II 2 G Ex db IIC T6, T5, T4, T3
II 2 D Ex tb IIIC T85°C, T100°C, T135°C, T200°C
Degree of protection IP66/ IP68 1bar/ 30min
PTB 02 ATEX 1041 X
Neustadt, den 25.05.2018

Dipl.-Ing. Martin Hess
Geschäftsführer

WARRANTY

nVent Equipment Protection warrants that the Goods manufactured by nVent Equipment Protection will be free from defects in material and workmanship for a period of one (1) year from the date of shipment by nVent Equipment Protection, subject to the following conditions and exclusions:
A. Conditions. All Goods must be installed and operated according to the following specifications:

1. Maximum voltage variation no greater than plus or minus 10% of nameplate nominal rating;
2. Maximum frequency variation no greater than plus or minus 3 Hz of nameplate nominal rating;
3. Must not exceed minimum and maximum stated temperatures on the nameplate;
4. Must not exceed (BTU/Hr) rating, including any heat sink as indicated on the nameplate;
5. Refrigerant bearing Goods must not be restarted for a period of one (1) minute after intentional or accidental shut-off;
6. The filters (if applicable) must be cleaned regularly;
7. The Goods and any parts thereof must not be modified, unless prior written authorization is received from nVent Equipment Protection; and
8.   All Goods must be installed and grounded in accordance with all relevant electrical and safety codes, as well as the National Electric Code and OSHA rules and regulations.
9. All Goods must be installed in a stationery application, free of vibration. A violation of any one of these conditions shall render the warranty hereunder void and of no effect.

B. Exclusions. This warranty shall be void if product is misapplied in any way or:

1.  Buyer specified product is inappropriate for system or environment in which it is operating.
2. Goods are not installed in accordance with nVent Equipment Protection specifications.
3. Removal or modification of nVent Equipment Protection label affixed to product without written nVent Equipment Protection approval.

nVent Equipment Protection must be notified of a claim in writing not later than fourteen (14) days from the date when Buyer has become aware of such occurrence, or where the defect is such that it may cause damage, immediately, such notice containing a description of how the defect manifests itself. Failure to provide such prompt notice to nVent Equipment Protection shall result in forfeiture of Buyer’s rights under this warranty.
In the event of a warranty claim, Buyer is to return defective goods to nVent Equipment Protection in accordance with nVent Equipment Protection Return Policy. Warranty period for repaired goods remains at 1 year from shipment of original goods. nVent Equipment Protection sole obligation to Buyer under this warranty will be, at nVent Equipment Protection option:
C. Repair or replace nVent Equipment Protection products or parts found to be defective in material or workmanship.
D. Issue credit for the purchase price paid by Buyer relating to such defective Goods or part.
THIS WARRANTY CONSTITUTES THE ENTIRE WARRANTY WITH RESPECT TO THE GOODS AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY AND IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

RETURN AND REPAIR POLICY

nVent Equipment Protection products that: (i) are made to order, (ii) have been modified by Buyer, (ii) have special finishes, or (iv) are determined by nVent Equipment Protection to constitute “custom” products that cannot be returned to stock or resold to other Buyers, will not be accepted for return by nVent Equipment Protection.
All returns require a Return Material Authorization number (RMA #), regardless of reason for return, whether it be for warranty or out of warranty repair. Returns without an RMA # will be
refused by our Receiving Department. An RMA # is valid for 30 days.
E. An RMA # will be issued by our Product Return Department in Anoka, MN at 763-422-2211.
Buyer should have following information available at time of RMA request:

1.  Complete Model Number, Serial Number and description of damaged unit being returned.
2. Original Buyer Purchase Order number and date product was received by Buyer.
3.  Quantity to be returned and a brief description of failure for each unit, if different.
4.  Contact information of Buyer that must include: name of company, billing and shipping address, phone, number, fax number, freight carrier and the name and phone number of a Buyer contact who can elaborate on the claimed defect in detail.
5.  Buyer must provide a Repair Purchase Order number for both warranty and out of warranty repairs. The PO will not exceed 50% of a new unit. Buyer will be notified of repair charges that exceed approved PO amount.

F. All returns to nVent Equipment Protection must be securely packed, using original cartons if possible. All returns must have the RMA number visible on the outside of the carton. nVent Equipment Protection is not responsible for material damaged in transit. Any refrigerantbearing Goods must be shipped upright for return.
G. Shipping cost for all non-warranty repairs is the responsibility of the sender and must be shipped prepaid. Shipping costs for all warranty related repairs will be covered by nVent Equipment Protection provided the goods are returned using a nVent  quipment Protection approved carrier. If after diagnoses the product is determined by nVent Equipment Protection not be covered under warranty, Buyer will be responsible for all shipping charges and will be billed accordingly.
H. Non-warranty repairs are subject to a $105 minimum analysis fee. If approval is not received within 30 days, material will be scrapped and all shipping expenses and corresponding analysis fees will be billed to Buyer.
I. At Buyer’s request, Failure Analysis can be provided by nVent Equipment Protection for warrantable goods at no charge. Failure analysis for non- warranty repairs are subject to a $150 per hour Engineering charge plus any other incurred testing costs.
J. All returned merchandise must be sent to the following address: nVent Equipment Protection, 2100 Hoffman Way, Anoka, MN 55303-1745.
K. Credit for accepted returns shall be at the original selling price or the current selling price, whichever is lower, less the restocking charge indicated as follows:

1.  Within 60 days of invoice date – 20% of applicable selling price.
2. Within 61-120 days of invoice date – 30% of applicable selling price.
3. Within 121-180 days of invoice date – 40% of applicable selling price.
4. Beyond 180 days – subject to individual review by nVent Equipment Protection.

If product being returned for credit requires repair or modification, the cost of any labor or material necessary to bring product into saleable condition will be deducted from credit. Buyer may not take credit against returns without prior written nVent  quipment Protection approval.

LIMITATION OF LIABILITY

NVENT EQUIPMENT PROTECTION WILL NOT BE LIABLE UNDER ANY CIRCUMSTANCES FOR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES, INCLUDING WITHOUT LIMITATION ANY LOST PROFITS OR LABOR COSTS, ARISING FROM THE SALE, USE OR INSTALLATION OF THE GOODS, FROM THE GOODS BEING INCORPORATED INTO OR BECOMING A COMPONENT OF ANOTHER PRODUCT, FROM ANY BREACH OF THIS AGREEMENT OR FROM ANY OTHER CAUSE WHATSOEVER, WHETHER BASED ON WARRANTY (EXPRESSED OR IMPLIED) OR OTHERWISE BASED ON CONTRACT, OR ON TORT OR OTHER THEORY OF LIABILITY, AND REGARDLESS OF ANY ADVICE OR REPRESENTATIONS THAT MAY HAVE BEEN RENDERED BY NVENT EQUIPMENT PROTECTION CONCERNING THE SALE, USE OR INSTALLATION OF THE GOODS.

nVent
2100 Hoffman Way
Anoka, MN 55303 USA
+1.763.422.2211
+1.763.576.3200
nVent.com
© 2022 nVent
89115007
Rev. K
P/N 89115008

Documents / Resources

| nVent DAHHL4001A Hazardous Location Heaters [pdf] Instruction Manual
DAHHL4001A Hazardous Location Heaters, DAHHL4001A, Hazardous Location Heaters, Location Heaters, Heaters
---|---

References

• Home | nVent HOFFMAN
• Protection for plant and system technology - INTERTEC-Hess GmbH
• Building a more Sustainable and Electrified World | nVent

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