Mammoth 800 to 5500 CFM: Dedicated Outdoor Air System with Enthalpy Wheels (VHC) - Manual (Page 31)

MAMM-VHC-IOM-1A (JANUARY 2013) 31
Mammoth Inc.
13200 Pioneer Trail, Suite 150
Eden Prairie, MN 55347-4125
Phone: 952-358-6600
Fax: 952-358-6700
Unit Identification Information
Project: _______________________________________
Model Number: _________________________________
Serial Number: __________________________________
Tag: __________________________________________
Jobsite Contact: _________________________________
Job Name: _____________________________________
Job Address: ___________________________________
Telephone: _____________________________________
Email: _________________________________________
Appendix H: VHC-36, 42 and 50 Start-up Report and Checklist
IMPORTANT
• Complete this form for each unit and email, fax or
mail to Mammoth immediately after start-up to vali-
date warranty and to provide valuable information for
personnel performing future maintenance or for fac-
tory assistance to address below.
• Read the Installation, Operation and Maintenance
Instructions Manual and the VHC-36, 42 and 50
DDC Control Package Manual (if equipped) before
proceeding.
• Leave a copy of this report with the owner and at the
unit for future reference and permanent record.
• To ensure proper operation of each unit qualified
personnel should perform the start-up, complete the
checklist and report.
• All units are factory run tested. Blowers, heat wheel
and compressors (if equipped) are set up to run
correct when power is connected. If any blower is
running backwards or compressor is making loud
noises disconnect power and switch two leads (on
three-phase power) to ensure proper rotation and
avoid damage.
• If units are equipped with compressors, power must
be turned on for 24 hours prior to a call for cooling
for the compressor crank case heaters to be ener-
gizing to prevent possible damage.
• The BacStat II interface module (if equipped with
DDC control package and mounted remotely) may
be temporarily connected at the unit for checkout.
Ensure it is connected to the Net 2 contacts other-
wise it will not give readings.
Table H1: Pre Start-up Checklist
Checklist Item Yes N/A
1 Is the electrical disconnect set to the ‘Off’ position?
2 Have obstructive packaging, objects, tie downs on fans and heat wheel been removed?
3 Are fans and heat wheel rotating freely?
4 Are fan wheels and drive set screws tight?
5 Are belt alignment and tension correct?
6 Are air filters installed, clean or replaced?
7 Have coils been checked for fin damage and dirt, straightened and cleaned?
8 Are refrigerant components and piping in good conditions, no damage or leaks caused by shipment or installation?
9 Has a water strainer been installed for WSHP with brazed heat exchanger?
10 Is ductwork connected and complete?
11 Are condensate drain connections trapped, installed correctly and filled?
12 Are all shipped loose or field supplied components correctly installed and wired and are the start interlocks com-
pleted for the ventilation control desired?
13 Has the field wiring (FW) terminal diagram been marked up accordingly and left with the unit?
14 Has power supply and control wiring been inspected and approved by the Local Authorities?
15 Have factory and field wiring connections been checked and tightened?
16 Are all fuses properly installed in holders?
17 Is voltage at the disconnect switch within 10% of nameplate and phase-to-phase readings within 2% of nameplate?
18 Are field piping and venting installation and connections for heating and cooling options completed and tested?
19 Are heating and cooling enable switches set to the ‘Off’ position?